Users manual Vision 8 - Phase to Phase · 2020. 3. 27. · Users manual Vision 8.15 Phase to Phase...

Users manual Vision 9.1

Phase to Phase BVKoningstraat 27-16811 DG ArnhemThe NetherlandsT: +31 26 3523700www.phasetophase.com

February 2021

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Contents

1 ..................................................................................................................................................................................... 9General

.............................................................................................................................................................................. 91.1 Information

.............................................................................................................................................................................. 101.2 Vision Updates

.............................................................................................................................................................................. 281.3 Vision: introduction

.............................................................................................................................................................................. 291.4 Vision: structure

.............................................................................................................................................................................. 301.5 Menu and mouse control

.............................................................................................................................................................................. 311.6 Shortcut keys

2 ..................................................................................................................................................................................... 33Getting started

.............................................................................................................................................................................. 332.1 Creating a new empty workspace

.............................................................................................................................................................................. 342.2 Adding new nodes

.............................................................................................................................................................................. 382.3 Adding new connections

.............................................................................................................................................................................. 442.4 Adding an external grid and loads

.............................................................................................................................................................................. 472.5 Computing a load flow

.............................................................................................................................................................................. 512.6 Computing the short circuit current

3 ..................................................................................................................................................................................... 55User interface

.............................................................................................................................................................................. 553.1 Network ........................................................................................................................................................................ 55Network presentation 3.1.1........................................................................................................................................................................ 57Sheet 3.1.2........................................................................................................................................................................ 59Multiple object presentation 3.1.3........................................................................................................................................................................ 61View 3.1.4........................................................................................................................................................................ 64Views 3.1.5........................................................................................................................................................................ 65Group 3.1.6........................................................................................................................................................................ 65Direction 3.1.7........................................................................................................................................................................ 66Area 3.1.8

.............................................................................................................................................................................. 673.2 Object types ........................................................................................................................................................................ 68Type 3.2.1........................................................................................................................................................................ 70Alias 3.2.2

.............................................................................................................................................................................. 703.3 Application menu ........................................................................................................................................................................ 70File handling 3.3.1........................................................................................................................................................................ 71Sending 3.3.2........................................................................................................................................................................ 72Prepare 3.3.3

.............................................................................................................................................................................. 733.4 Finding and selecting components ........................................................................................................................................................................ 74Select and Search 3.4.1........................................................................................................................................................................ 77Memory selection 3.4.2

.............................................................................................................................................................................. 773.5 Adding components ........................................................................................................................................................................ 77Insert 3.5.1........................................................................................................................................................................ 79Place 3.5.2........................................................................................................................................................................ 80Copy and paste 3.5.3

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........................................................................................................................................................................ 81Represent 3.5.4

........................................................................................................................................................................ 82Library 3.5.5

.............................................................................................................................................................................. 833.6 Edit components ........................................................................................................................................................................ 83Edit individual 3.6.1........................................................................................................................................................................ 83Edit collective 3.6.2........................................................................................................................................................................ 84Update types 3.6.3........................................................................................................................................................................ 84Special, Simultaneity 3.6.4........................................................................................................................................................................ 85Special, Load 3.6.5........................................................................................................................................................................ 86Special, Subnet border 3.6.6........................................................................................................................................................................ 86Special, Profile situation 3.6.7........................................................................................................................................................................ 86Import 3.6.8........................................................................................................................................................................ 96Transfer 3.6.9........................................................................................................................................................................ 96Split 3.6.10........................................................................................................................................................................ 97Shift 3.6.11........................................................................................................................................................................ 97Take out 3.6.12........................................................................................................................................................................ 98Join 3.6.13........................................................................................................................................................................ 98Undo 3.6.14........................................................................................................................................................................ 98Redo 3.6.15

.............................................................................................................................................................................. 983.7 Moving components ........................................................................................................................................................................ 98Move 3.7.1........................................................................................................................................................................ 98Bend 3.7.2........................................................................................................................................................................ 99Align 3.7.3........................................................................................................................................................................ 99Replace 3.7.4........................................................................................................................................................................ 99Scale 3.7.5

.............................................................................................................................................................................. 1003.8 Deleting objects

.............................................................................................................................................................................. 1003.9 Printing and reporting

.............................................................................................................................................................................. 1013.10 Tools ........................................................................................................................................................................ 101Compare network 3.10.1........................................................................................................................................................................ 102Take over from network 3.10.2

....................................................................................................................................................... 102Add a network........................................................................................................................................................................ 102Protections 3.10.3........................................................................................................................................................................ 105Import 3.10.4........................................................................................................................................................................ 114Export 3.10.5........................................................................................................................................................................ 114Maps 3.10.6........................................................................................................................................................................ 116Geographical export 3.10.7........................................................................................................................................................................ 116Type viewer 3.10.8........................................................................................................................................................................ 116Define views 3.10.9........................................................................................................................................................................ 117Reports 3.10.10........................................................................................................................................................................ 117Options file 3.10.11........................................................................................................................................................................ 118Options 3.10.12........................................................................................................................................................................ 118Transformer phase tool 3.10.13........................................................................................................................................................................ 119Cable rating tool 3.10.14........................................................................................................................................................................ 120Arc Flash 3.10.15........................................................................................................................................................................ 123Overhead lines 3.10.16........................................................................................................................................................................ 126Solar panel 3.10.17........................................................................................................................................................................ 126Macros 3.10.18

4 ..................................................................................................................................................................................... 127Options

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.............................................................................................................................................................................. 1274.1 Options Editor ........................................................................................................................................................................ 127Options Editor General 4.1.1........................................................................................................................................................................ 128Options Editor Drawing 4.1.2........................................................................................................................................................................ 128Options Editor Presentation defaults 4.1.3........................................................................................................................................................................ 129Options Editor Position defaults 4.1.4........................................................................................................................................................................ 129Options Editor Appearance 4.1.5........................................................................................................................................................................ 130Options Editor Variables 4.1.6

.............................................................................................................................................................................. 1304.2 Options File locations

.............................................................................................................................................................................. 1314.3 Options Network

.............................................................................................................................................................................. 1314.4 Options Calculations

.............................................................................................................................................................................. 1344.5 Options Print

.............................................................................................................................................................................. 1354.6 Options Geography

.............................................................................................................................................................................. 1364.7 Options Key

5 ..................................................................................................................................................................................... 137Components and parameters

.............................................................................................................................................................................. 1385.1 Nodes ........................................................................................................................................................................ 138Node 5.1.1........................................................................................................................................................................ 143Busbar system 5.1.2

.............................................................................................................................................................................. 1445.2 Branches ........................................................................................................................................................................ 145Line 5.2.1........................................................................................................................................................................ 147Mutual coupling 5.2.2........................................................................................................................................................................ 148Link 5.2.3........................................................................................................................................................................ 149Cable 5.2.4........................................................................................................................................................................ 154Reactance coil 5.2.5........................................................................................................................................................................ 155Transformer 5.2.6........................................................................................................................................................................ 160Special transformer 5.2.7........................................................................................................................................................................ 165Three winding transformer 5.2.8

.............................................................................................................................................................................. 1705.3 Element ........................................................................................................................................................................ 171Source 5.3.1........................................................................................................................................................................ 173Synchronous generator 5.3.2........................................................................................................................................................................ 177Synchronous motor 5.3.3........................................................................................................................................................................ 179Asynchronous generator 5.3.4........................................................................................................................................................................ 181Asynchronous motor 5.3.5........................................................................................................................................................................ 185Asynchronous motor group 5.3.6........................................................................................................................................................................ 187Load 5.3.7........................................................................................................................................................................ 189Transformer load 5.3.8........................................................................................................................................................................ 191Shunt capacitor 5.3.9........................................................................................................................................................................ 193Shunt reactor 5.3.10........................................................................................................................................................................ 195Zigzag transformer 5.3.11........................................................................................................................................................................ 196Wind turbine 5.3.12........................................................................................................................................................................ 197Battery 5.3.13........................................................................................................................................................................ 199PV 5.3.14

.............................................................................................................................................................................. 2005.4 Switches and protections ........................................................................................................................................................................ 200Load switch 5.4.1........................................................................................................................................................................ 201Fuse 5.4.2........................................................................................................................................................................ 202Circuit breaker 5.4.3........................................................................................................................................................................ 204Current protection 5.4.4

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........................................................................................................................................................................ 210Earth fault protection 5.4.5........................................................................................................................................................................ 211Voltage protection 5.4.6........................................................................................................................................................................ 212Differential protection 5.4.7........................................................................................................................................................................ 213Distance protection 5.4.8........................................................................................................................................................................ 217Unbalance protection 5.4.9........................................................................................................................................................................ 217Thermal protection 5.4.10........................................................................................................................................................................ 219Earth fault differential 5.4.11........................................................................................................................................................................ 219Short circuit indicator 5.4.12........................................................................................................................................................................ 220Measurement unit 5.4.13

.............................................................................................................................................................................. 2215.5 Other ........................................................................................................................................................................ 222Text 5.5.1........................................................................................................................................................................ 223Frame 5.5.2........................................................................................................................................................................ 224Legend 5.5.3........................................................................................................................................................................ 225Load behaviour 5.5.4........................................................................................................................................................................ 227Load growth 5.5.5........................................................................................................................................................................ 228Profile 5.5.6........................................................................................................................................................................ 230External profile 5.5.7........................................................................................................................................................................ 233Simultaneousness 5.5.8........................................................................................................................................................................ 233Selection 5.5.9........................................................................................................................................................................ 234Feeder 5.5.10........................................................................................................................................................................ 235Variant 5.5.11........................................................................................................................................................................ 241Scenario 5.5.12........................................................................................................................................................................ 244Specifics 5.5.13........................................................................................................................................................................ 244Revision 5.5.14........................................................................................................................................................................ 245Note 5.5.15........................................................................................................................................................................ 246Presentation Components 5.5.16

6 ..................................................................................................................................................................................... 247Calculations

.............................................................................................................................................................................. 2476.1 Loadflow ........................................................................................................................................................................ 248General 6.1.1........................................................................................................................................................................ 248Island mode 6.1.2........................................................................................................................................................................ 250Calculation 6.1.3........................................................................................................................................................................ 254Result 6.1.4

.............................................................................................................................................................................. 2556.2 Unbalanced load flow ........................................................................................................................................................................ 255Unbalanced load flow: General 6.2.1........................................................................................................................................................................ 257Unbalanced load flow: Calculation 6.2.2........................................................................................................................................................................ 258Unbalanced load flow: Result 6.2.3

.............................................................................................................................................................................. 2606.3 IEC 60909 ........................................................................................................................................................................ 260General 6.3.1........................................................................................................................................................................ 268Power Station Unit 6.3.2........................................................................................................................................................................ 269Calculation 6.3.3........................................................................................................................................................................ 270Result 6.3.4

.............................................................................................................................................................................. 2716.4 IEC 909

.............................................................................................................................................................................. 2716.5 Fault Analysis ........................................................................................................................................................................ 271General 6.5.1........................................................................................................................................................................ 272Calculation 6.5.2........................................................................................................................................................................ 273Result 6.5.3

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.............................................................................................................................................................................. 2756.6 Network load

.............................................................................................................................................................................. 2766.7 Harmonics ........................................................................................................................................................................ 276Harmonics: General 6.7.1........................................................................................................................................................................ 276Harmonics: Model 6.7.2........................................................................................................................................................................ 280Harmonics: Calculation 6.7.3........................................................................................................................................................................ 282Harmonics: Result 6.7.4

.............................................................................................................................................................................. 2856.8 Costs ........................................................................................................................................................................ 285General 6.8.1........................................................................................................................................................................ 286Calculation 6.8.2........................................................................................................................................................................ 286Result 6.8.3

.............................................................................................................................................................................. 2876.9 Reliabilty ........................................................................................................................................................................ 287General 6.9.1........................................................................................................................................................................ 287Concept 6.9.2........................................................................................................................................................................ 288Specifications 6.9.3........................................................................................................................................................................ 288Input 6.9.4........................................................................................................................................................................ 289Modelling 6.9.5........................................................................................................................................................................ 290Calculation 6.9.6........................................................................................................................................................................ 291Result 6.9.7

.............................................................................................................................................................................. 2926.10 Protection ........................................................................................................................................................................ 292General 6.10.1........................................................................................................................................................................ 294Current protection characteristic 6.10.2........................................................................................................................................................................ 295Calculation 6.10.3........................................................................................................................................................................ 297Result 6.10.4........................................................................................................................................................................ 303Protection analysis 6.10.5

.............................................................................................................................................................................. 3046.11 Voltage dip analysis ........................................................................................................................................................................ 304General 6.11.1........................................................................................................................................................................ 304Calculation 6.11.2........................................................................................................................................................................ 305Result 6.11.3

.............................................................................................................................................................................. 3066.12 Failure analysis

.............................................................................................................................................................................. 3076.13 Normal Open Point optimization ........................................................................................................................................................................ 307General 6.13.1........................................................................................................................................................................ 307Calculation 6.13.2........................................................................................................................................................................ 307Results 6.13.3

.............................................................................................................................................................................. 3086.14 Pseudomonitor ........................................................................................................................................................................ 308Pseudomonitor 6.14.1........................................................................................................................................................................ 310Extended 6.14.2

.............................................................................................................................................................................. 3116.15 Transmission analysis

.............................................................................................................................................................................. 3116.16 Outage simulation

.............................................................................................................................................................................. 3116.17 Stability analysis ........................................................................................................................................................................ 311General 6.17.1........................................................................................................................................................................ 311Model and calculation 6.17.2........................................................................................................................................................................ 312Results 6.17.3

.............................................................................................................................................................................. 3136.18 Dynamic analysis ........................................................................................................................................................................ 313General 6.18.1........................................................................................................................................................................ 313Model 6.18.2........................................................................................................................................................................ 321Case and events 6.18.3........................................................................................................................................................................ 322Calculation 6.18.4

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........................................................................................................................................................................ 325Result 6.18.5........................................................................................................................................................................ 326Workspace 6.18.6........................................................................................................................................................................ 330Troubleshooting 6.18.7

.............................................................................................................................................................................. 3316.19 IEC 61363 ........................................................................................................................................................................ 331General 6.19.1........................................................................................................................................................................ 331Model 6.19.2........................................................................................................................................................................ 334Calculation 6.19.3........................................................................................................................................................................ 335Result 6.19.4

.............................................................................................................................................................................. 3356.20 Arc flash ........................................................................................................................................................................ 335General 6.20.1........................................................................................................................................................................ 336Model 6.20.2........................................................................................................................................................................ 337Calculation 6.20.3........................................................................................................................................................................ 339Result 6.20.4

7 ..................................................................................................................................................................................... 341Macros

.............................................................................................................................................................................. 3417.1 Macro editor

.............................................................................................................................................................................. 3427.2 Macros: calculations

.............................................................................................................................................................................. 3437.3 Macro structure and syntax ........................................................................................................................................................................ 343Macro objects 7.3.1........................................................................................................................................................................ 344Macro values 7.3.2........................................................................................................................................................................ 345Macro variables 7.3.3........................................................................................................................................................................ 345Standard objects 7.3.4

.............................................................................................................................................................................. 3467.4 Macro attributes ........................................................................................................................................................................ 346Macro alterable attributes 7.4.1........................................................................................................................................................................ 347Macro alterable attributes table 7.4.2........................................................................................................................................................................ 351Macro non alterable attributes 7.4.3........................................................................................................................................................................ 352Macro non alterable attributes table 7.4.4

.............................................................................................................................................................................. 3567.5 Macro commands and parameters ........................................................................................................................................................................ 356Macro alteration commands 7.5.1

....................................................................................................................................................... 357Macro command setpqs

....................................................................................................................................................... 357Macro command set

....................................................................................................................................................... 357Macro command setselection

....................................................................................................................................................... 358Macro command add

....................................................................................................................................................... 358Macro command addselection

....................................................................................................................................................... 358Macro command subtract

....................................................................................................................................................... 359Macro command subtractselection

....................................................................................................................................................... 359Macro command multiply

....................................................................................................................................................... 359Macro command multiplyselection....................................................................................................................................................... 360Macro command divide....................................................................................................................................................... 360Macro command divideselection....................................................................................................................................................... 360Macro arrays....................................................................................................................................................... 361Macro command Trace

........................................................................................................................................................................ 361Macro functions 7.5.2....................................................................................................................................................... 362General functions....................................................................................................................................................... 362Calculations functions....................................................................................................................................................... 362Power and logarithm functions....................................................................................................................................................... 363Goniometric functions....................................................................................................................................................... 363Logical functions....................................................................................................................................................... 363Text functions....................................................................................................................................................... 363Excel functions

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........................................................................................................................................................................ 363Macro procedure 7.5.3

........................................................................................................................................................................ 364Macro conditional commands 7.5.4....................................................................................................................................................... 364Macro command if

........................................................................................................................................................................ 365Macro loop commands 7.5.5....................................................................................................................................................... 366Macro command while....................................................................................................................................................... 366Macro command repeat....................................................................................................................................................... 367Macro command loop....................................................................................................................................................... 367Macro command for....................................................................................................................................................... 368Macro command forselection

........................................................................................................................................................................ 368Macro calculating commands 7.5.6....................................................................................................................................................... 369Load flow....................................................................................................................................................... 370IEC 909....................................................................................................................................................... 370IEC 60909....................................................................................................................................................... 371Fault analysis....................................................................................................................................................... 372Selectivity....................................................................................................................................................... 373Ripple....................................................................................................................................................... 373Reliability

........................................................................................................................................................................ 373Macro reporting commands 7.5.7....................................................................................................................................................... 374Macro format....................................................................................................................................................... 375Macro write to an object

........................................................................................................................................................... 375Macro command View........................................................................................................................................................... 376Macro command Viewcolor

....................................................................................................................................................... 376Macro write to a text........................................................................................................................................................... 376Macro command text........................................................................................................................................................... 377Macro command debug

....................................................................................................................................................... 377Macro write to a text file........................................................................................................................................................... 377Macro command TfOpenForWrite........................................................................................................................................................... 377Macro command TfWrite........................................................................................................................................................... 378Macro command TfWriteLn........................................................................................................................................................... 378Macro command TfClose

....................................................................................................................................................... 378Macro write to Excel........................................................................................................................................................... 379Macro command open_2........................................................................................................................................................... 379Macro command close_2........................................................................................................................................................... 379Macro command addsheets........................................................................................................................................................... 379Macro command getsheets........................................................................................................................................................... 380Macro command title........................................................................................................................................................... 380Macro command gettitle........................................................................................................................................................... 380Macro command write........................................................................................................................................................... 381Macro command copy........................................................................................................................................................... 382Macro command bold........................................................................................................................................................... 382Macro command border........................................................................................................................................................... 383Macro command merge........................................................................................................................................................... 383Macro command fit........................................................................................................................................................... 383Macro command align........................................................................................................................................................... 383Macro command color........................................................................................................................................................... 384Macro command backcolor........................................................................................................................................................... 384Macro command SetScreenUpdating

........................................................................................................................................................................ 384Macro input commands 7.5.8....................................................................................................................................................... 385Macro read from input dialog

........................................................................................................................................................... 385Macro command input....................................................................................................................................................... 385Macro read from a text file

........................................................................................................................................................... 385Macro command TfOpenForRead

........................................................................................................................................................... 385Macro command TfRead........................................................................................................................................................... 386Macro command TfReadLn........................................................................................................................................................... 386Macro function TfEOF........................................................................................................................................................... 387Macro command TfClose

....................................................................................................................................................... 387Macro read from an Excel file

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........................................................................................................................................................... 387Macro command open

........................................................................................................................................................... 387Macro command read

........................................................................................................................................................... 388Macro command close........................................................................................................................................................................ 388Macro network commands 7.5.9

....................................................................................................................................................... 388Macro command savenetwork

....................................................................................................................................................... 389Macro command storenetwork

....................................................................................................................................................... 389Macro command restorenetwork

....................................................................................................................................................... 390Macro command ShowNetwork

8 ..................................................................................................................................................................................... 391Appendix

.............................................................................................................................................................................. 3918.1 Vision: info calculations

.............................................................................................................................................................................. 3938.2 Vision: info components

.............................................................................................................................................................................. 3938.3 Vision: info user interface

.............................................................................................................................................................................. 3948.4 Vision: info subscriber

.............................................................................................................................................................................. 3958.5 Software installation and hardware key

.............................................................................................................................................................................. 3968.6 Network file format

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1 General

1.1 Information

Vision is a high-grade tool for analysis of electricity networks. Vision can be used to carry out load flowcalculations, short-circuit calculations and fault analysis. Vision has been used since 1991 by virtually all Dutchenergy companies and a considerable number of industrial and consulting engineering firms for the planning,design and management of transmission, distribution and industrial networks.

User convenience and practical applicability of results have been central to the development of Vision. Regularupdates and upgrades are published on the website: www.phasetophase.com. For updates in this version, see:What is new .

Georg Simon Ohm

User interfaceThe user interface comprises a fast one-line editor which is intuitive to use, thanks to carefully chosen editfunctions. This makes Vision accessible both to frequent users and incidental users who only perform networkcalculations a few times a year.The user interface handles the network modelling and presents the results. It is control through the ribbon menuand the mouse, see: Menu and mouse control . An number of control actions have predefined shortcutkeys .The interface can handle large networks, making it extremely suitable for linking to geographical informationsystems. Through the use of copy and paste functions networks can easily be joined or expanded. Thepresentation of the network and associated information, such as component data and calculation results, can befully customised by the user.Although Vision is easy to use, electrical engineering knowledge remains necessary to be able to correctlyinterpret the data and the results.See also:

· User interface

· Calculations

· Structure

Component typesDuring construction or modification of a network, the user is supported by a component database consisting ofcommonly used cables, transformers, reactance coils, generators, motors, busbar systems and protection relays.The use of these databases increases efficiency and prevents incorrect data entry. The component database can beextended or modified by the user from Vision.

ResultsResults of calculations are directly shown in the network based on a user-defined View . Through the use ofcolour coding possible problem areas in the network can be quickly identified. The results can also be exported in

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http://www.phasetophase.com

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user defined Reports . Detailed information for each node or line can be easily accessed and visualised. Byusing graphics several nodes or lines can be readily compared.

ExportThe exporting of the calculation results, network diagrams and network information for usages in otherapplications is important for the users. Therefore, in addition to the ability to print and copy these diagrams anddata, custom reports can be defined and stored in Vision and all results can easily be exported to other packageswith the object information intact.

SubscriptionsWith a Vision subscription, you are always guaranteed the latest upgrades, and you will receive information on alldevelopments in the Vision periodical. New developments are presented, and experiences with Vision exchanged,at the annual users’ day for all subscribers. A Vision subscription also entitles you to front-line support viatelephone or email.

See also:

· Subscriptions

VisionLanguage: English and DutchLicense: by PC or network keyInstallation: by userMinimum system requirements: PC with Windows 10

InformationTel.: +31 26 352 3700E-mail: [email protected]

Phase to Phase B.V.Koningstraat 27-16811 DG ARNHEMThe Netherlands

1.2 Vision Updates

NEW IN VISION 9.1

Macro commansSetSerialsAndFeedings: set serial numbers and feeding group numbers againSetDirections: set direction numbers againSetMeshes: set mesh values againSetGroups: set group numbers againFreezePanes: block titles in ExcelExportGeo: export geografical data to Excel.

Accu controlThe accu can be equipped with a controller to control charging and discharging. A P(U) control or P(t) controlcan be selected. The P(U) control overrides the commonly specified P and profile. The P(t) control also overridesthese values, but only if the time is known.

Profile at PV of the transformer loadThe PV in the transformer load has a profile. The profile scales the solar radiation.

Transfer tripping ability of circuit breaker depending on type of protectionThe transfer tripping ability can be activated for each type of protection.

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Load rate limits for PILC and non-PILCPILC cables and non-PILC cables have their own load rate limits in the options at Calculation, Limits . Set thesevalues right once!

Voltag e variation checkedAfter a network load calculation or a load flow with profiles, the minimum and maximum achieved voltage pernode are known. For medium voltage nodes, this variation is tested against a new value dUmax in the options,

under Calculation, Limits . Nodes with an exceeded value get the high color.

Umin, Umax and dUmax at node

Per node, the voltage limits from the options can be overridden by specifying your own limits in the node form atDiverse, Limits .

NEW IN VISION 9.0.1

Non-preferred elementA non-preferred element is switched off during switching in the fault analysis.The value is set on the Reliability sheet of the element form.

Macro commandsCreateDir: Make a sub folder.ForSelected: Execute a piece of macro for selected objects of a specified sort.

Motor start via autotransformer in IEC 60909 calculationThe secondary rated voltage of the special transformer can be used as voltage of the voltage source in case ofshort-circuits.

Network export in order of routing .Sorting has been added to the export settings.

Easily adjust the distance between the nodes of a rail system.By using the rail system form Temporarily graphically decoupled .

Calculate only one time at load flow with profiles.By setting Choose timestamp in the loadflow settings.

Phase shift of a transformer as a scenario item parameter.By selecting Phase shift at parameter.

NEW IN VISION 9.0

Protection presence split into present and activeThe protections at a circuit breaker have two "tick marks": present and active. The new possible status is therefore:present, not active. These protections are stored in the network file, but do not function.

P(I) control for wind turbineThe wind turbine has a new P-control, with which the power based on the current (actually load rate) in one, twoor three branches can be regulated. The P(I) control may occur at the same time as a P(U) control.

P-control for loadThe load has two P-controls: P(U) and P(I). This allows the power to be reduced if the voltage drops or if thecurrent becomes too large due to a selected measuring field.

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Remembering and restoring switch statesThe current switch states can be remembered and be reset a little later. This is done via Start | Edit | Special |Remember.

Even harmonicsEven harmonics can also be entered.

Vertical text at nodesThe text at a node can be set to vertical via the presentation sheet in the node form.

Better power output after load flow with profilesPmin and Pmax are reportable on elements. P1min and P1max are reportable on branches. The sign shows the power

direction.The P of branches and elements is also exported in the result export after load flow with profiles.

NEW IN VISION 8.15.2

Unique specific values in the network exportWhen exporting a network to Excel with Tools | Data | Export an additional last worksheet Specifics is created,where all the specific charasteristics with their sorted unique values are exported. Note: this sheet consists ofindependent columns. In other words: the values in one row have no relation to each other.

NEW IN VISION 8.15

Harmonics until the hundredthThe harmonics, contained in the harmonic type, can now be definied until the hundredth. Only odd harmonics areused in the harmonic calculations.

Harmonic voltag e source at sourceThe source has a harmonic voltage source, where harmonic voltages can be entered.

k2, k3, k4 at differential protectionThe differential protection has three new parameters, to add an extra threshold.

Operation output time at current protectionThe current protection has an own time, that is applied after the tripping.

P(I) control at PVThe PV has a new P control.

Smin and Smax at sourceThe source has an optional Smin and/or Smax at which the by the loadflow calculated power is tested. The resultis translated in a load rate between 0 and 200 %.

Notes quick (in)visibleIn practice, notes are a a blessing and a curse. Notes could be made (in)visible via View | Adjust appearance,but now it can quicker via Ctrl+Alt+N.

Select at colorObjects can be selected at the color (of their presentation) via Start | Select | Object, Presentation.

Selecting modifiedSelecting objects by dragging a rectangle with the mouse is changed when dragging from the left to the right.Objects have to be found completely inside the rectangle to be selected.

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NEW IN VISION 8.14

Wind turbine simplifiedThe wind turbine model has been greatly simplified and has complete P- and Q-control.

New load behaviourThree new built-in load behaviours are available: Industrie (90% const. P, 15% const. Q), Zakelijk (35% const. P,10% const. Q) and Wonen (30% const. P, 5% const. Q) ).

Arc protectionThe arc protection has been added to the installation tab at a node. The installation only contains data for the arcflash calculation.In the presence of an arc protection, the short circuit is switched off in a fixed short time.

Load-dependent voltag e reg ulation with special transformerThe voltage regulation of a special transformer has been expanded from only compounding to also includingload-dependent voltage regulation. The regular transformer already had this regulation.

Arc flash calculation according to new edition of IEEE 1584The 2018 IEEE arc flash norm has been implemented.

More selection optionsThere are two new items at Start | Select:Direction: The entire direction of the selected object or objects is selected. The sub-menu offers the possibility toselect additional directions (on the other side of an open switch) as well.Area: The entire area which is fed by the same source\transformer of the selected object or objects is selected.


Adaption of IEC 60909PV, wind turbine (lite and converter coupled) and accu are handled according to the new edition of the norm out2016.

Isochronous controlSynchronous generators with isochronous control keep the frequency nominal in island mode (during theloadflow).

Active filterThe condensor can contain an active filter. An active filter injects harmonic currents (during the harmonicloadflow) to compensate the harmonic current through a measure field.

NEW IN VISION 8.13

LSI relaisThe current protection is extended with a new characteristic sort: LSI.

Inverse differential protectionThe differential protection can also be equiped with an inverse characteristic.

Transfer trip switches at transfer trip abilityAt the already existing transfer trip ability, transfer trip switched can be entered.

Extended blocking abilityAt the already existing blocking ability, flexible combinations of protections can be made.

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Alias for fusesSee Alias .

Symbols for remote control and remote indication of switchesThe presence of remote indication and/or remote control is drawn with a small symbol on top of the load switchand circuit breaker.

PresetsIn the options loading presets can be defined. For each preset the generation, load, PV and wind can be scaledindependently of each other.

Normal open point optimisation with four presetsThe optimisation of the normal open point estimate the energy losses with different loading situations. The fourpreset situations are night, morning, afternoon, evening.

Network load calculationWith a network load calculation a number of different loading situations are calculated for a single network..


Select specifics based on valueObjects can also be selected based on the value of the defined specifics. Start | Select | Specifics.

NEW IN VISION 8.12

Additional properties for feedersThe enumeration of the feeders at a node has been extended with two new attributes per field: to and information .

Generation and PV at transformer loadThe transformer load has been extended with two new generation items: generation and PV .The specified generation is multiplied by the current generation percentage when performing a loadflowcalculation.The PV-power is multiplied by the current PV-percentage when performing a loadflow calculation.

Measurement unit on secondary side of a transformer loadA measurement unit can also be applied to the secondary side of a transformer load.

Own characteristics savedThe 'own' characteristics to be specified in Extra | Compare | Protections are now stored in the network file.

Generator and motor off as the g eneration percentag e or the load percentag e is equal to zeroIf the generator or motor has a specified capacity, but in the load flow the generation percentage or the loadpercentage close to zero or zero, the generator or motor is also turned off.Previously, reactive power control was still active.


Additional setting s for loadflowAn own scaling percentage for wind turbines can be specified in the load flow settings.With the load flow with internal profiles, a specific day can be selected, in addition to a certain week.In addition, a larger time step can be chosen for a potential time step of a quarter and a half hour.

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Select special extendedTwo new items have been added to Start | Select | Special:Remote indication: select nodes, circuit breakers and short-circuit indicators with remote status indication.P measurement: select measurement fields with a power measurement.

Measurement g raph in the measure field form has been improvedA choice can now be made between showing the graph as current or as power.The graph can be shown as a bar graph or line graph (the line graph becomes a point graph, in case of a toolarge break).The measurement data can be copied to the clipboard as text.


Measurement files and the calculated profile values plotted tog ether in one g raphThis can be done in the form of the measuring field. See Measurement unit .

NEW IN VISION 8.11

P-control at PVHet power can be controlled based on the voltage.

Fault resistance series for selectivity calculation chang ed0 to 10000 Ohm and 0 to 1000 Ohm are deleted.0 to 5 Ohm and 0 to 2 Ohm are added. Check your choice in the options!

Also measuring field as measuring point for differential protectionExcept a circuit breaker, also a measuring field can be choosen at "Other measuring points".

Set simultaneousness with a power measurementExcept with a current measurement, also with a power measurement the simulaneousness via measuring fieldmeasurements can be set.

Formula of special current protection chang edThe factor k is renamed to factor m. The extra time "e" is moved inside the brackets.

Sort fieldAt the enumeration of fields, at node, the sort can also be entered. There is a list to choose.

Sk" leading at sourceThe basic registration of the short circuit power is Sk". Formerly Ik". When copying a source to another voltage,the short circuit power is preserved.

NEW IN VISION 8.10

Arc flash calculationThe Arc Flash module determines the energy that is emitted by the arc in case of a short circuit in an installation.Based on the arc energy the category of Personal Protective Equipment (PPE) is chosen. The module contains twomethods of the arc flash calculations: according to the IEEE 1584 standard and according to the closed box textmethod of International Social Security Association (ISSA).

Differential protection at circuit breakerThe differential protection, formely a loose object, is accommodated at the circuit breaker.

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The rail differential protection is accommodated at the node.

Earth fault differential protection An earth fault differential protection can be entered at a circuit breaker.

Customer data at nodeCustomer data can be entered at the node.

Extended transformer voltag e controlThe voltage control of the transformer is changed and extended.Umin and Umax are replaced by Uset (the average) and Uband (the difference).Compoundering can be switched off at an opposite power direction.A "load dependent" control is added.

NEW IN VISION 8.9

Unbalance protectionAn unbalance protection can be entered at the circuit breaker.

Thermal protectionA thermal protection can be entered at the circuit breaker.

Directional voltag e protectionThe voltage protection can be set power directional.

NEW IN VISION 8.8

Dynamic analysis

· Workspace: to analyze different scenario’s or to validate simulation results with external (measurement) data,variables can be saved or imported to the workspace. Those variables can now be used during the session to becompared with the other workspace variables or with current simulation data.

· Building-up linear electrical network: internal adjustment to speed-up the process, mainly during analysis oflarge networks.

· Initialization procedure: time domain initialization for determining the initial operating point.

· Cable model: possibility to represent a cable by T-model or π-model consisting of one or multiple sections.

· Tan(Delta) snubber resistors of cable: possibility to set snubber resistances (parallel to shunt capacitances of acable) based on tan(delta) value.

· Power System Stabilizer (PSS) model: the function of a PSS is to damp oscillations in the network by adjustingthe excitation of the synchronous generator.

Stability AnalysisAs consequence of a disturbance or a normal change of operating point in a system, the system will show atransient response. The system is considered to be stable if oscillations in this response damp out after certaintime period of time and a new stationary state is reached. A system is unstable in case if these oscillations do notdamp out or even continue to grow with time. This can have serious consequences and, in the end, result in ablackout. Stability Analysis module determines based on the eigenvalues whether the system is stable or not. Inliterature this type of analysis is referred as ‘small-signal stability analysis’.

NEW IN VISION 8.7

IEC 61363The calculation of short-circuit current according to IEC 61363 standard: “Electrical installations of ships andmobile and fixed offshore units – Procedures for calculating short-circuit currents in three-phase a.c.”.

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Improved inverter control at PVThe inverter at PV has and extended Q(P) control and also a Q(U) control is possible.

Dynamic Analysis

· zigzag grounding transformer;

· input form for control systems of synchronous generator;

· reactive power and power factor control (synchronous generator);

· turbine and governing system (synchronous generator);

· neutral point grounding of elements (choice between isolated, grounded and grounded via impedance neutralpoint).

NEW IN VISION 8.6.3

Reliability calculation improvementsThe remote control is reviewed. This leads to extra phases in the restauration process: isolate remote, switch inremote, switch over remote.

Pseudomonitor improvementsAdding an external profile is possible. The format is the same as an external profile at the loadflow.The correction algorithm works according to actual power instead of nominal power.A second, extended export is generated.

Failure analysis improvementsMaze detection: Mazes are not allowed.Automatic source behind subnet border: at "loose" nodes behind subnet borders an invisible source is added,during the calculation.Not available use: report of the power of (transformer) load that are connected to not available nodes.Switch actions colored: when calculating for one object, the switch over branches are colored in the attentioncolor.

NEW IN VISION 8.6.1

More fault sorts at the same time at Protection - SelectivityThe protection selectivity calculation can calculate more fault sorts in the same run.

NEW IN VISION 8.6

Units in external profilesThe external profiles for load flow, need no longer contain only factors. Depending on the parameter, the valuescan be specified in V, kV, A, A, VA, kVA, MVA, W, kW, MW, var, kvar, Mvar, m/s, pu,% and ‰ percentage points.

Sun intensity in PV replaced by scalingThe property "sun intensity" in W/m² is replaced by "scaling" in ‰.Because both variables have a nominal value of 1000, nothing changes in the input and calculation.

Load and g eneration scale collective in the load flowThrough three percentage in the load flow settings, all loads, generations and PVs can be additional scaled.

Link to GaiaFrom a node in Vision, a Gaia-network can be opened in Gaia. The calculated short-circuit power in Vision ispassed to the source in Gaia.In the options, the Gaia network files folder must be specified.

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Parallel processingThe load flow with n-1 / n-2 and the load flow with profiles are fitted with parallel processing.This can optionally be disabled in the settings.

Arg Dir at directional protection replaced by RCAThe to be specified direction angle is turned 90 degrees. The "relay characteric angle" is now asked. This is thedirection in which the relay "maximal" works.RCA := ArgDir + 90 for current protections. The default RCA is 45 °.For earth fault protections, the direction is reviewed, leading to RCA := ArgDir - 90. The default RCA is 0 °.

Snom at accumulator replaced by C-rateThe C-rate is more or less equivalent to Snom. The C-rate is the maximum rate at which the battery may be charged

and discharged.

Loss split into no-load and load losses at the cost calculationThe energy loss is splitted into no-load and load loss.

Two blocks of text at elements: at the node and at the symbolAn element now has two text blocks: one initially at the node and one initially at the symbol. In the first block/lineis only the field number. In the second block is any other text. Obviously the position can be adjusted by draggingthe cubes.

NEW IN VISION 8.5.2

Zoom next selected objectWith View | Zoom | Zoom selected | Next selected object at this sheet you can zoom in at

Users manual Vision 8 - Phase to Phase · 2020. 3. 27. · Users manual Vision 8.15 Phase to Phase...

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