InformIT Power System Monitoring PSM 510, PSM …...PSM 510, PSM 511 PSM 530, PSM 550 Technical Data...

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Inform IT Power System Monitoring Workplaces PSM 510, PSM 511 PSM 530, PSM 550 Technical Data 1MRB520375-Ben Page 1 Issued: July 2003 Changed since: May 2003 Data subject to change without notice Accurate, consistent and dependable infor- mation is the basis for an efficient opera- tional system and becomes crucial to making the right decisions in the event of a power system fault. A PSM system provides easy access to accurate and reliable information for all concerned departments of the utility in order to aid faster and easier detection and resolving of problems. The PSM is an open, flexible and modular monitoring system. The various functional modules are tailored and packaged into workplaces for the individual requirements of diverse user groups. All workplaces described in this data sheet assume the existence of an installed central server, PSM 500. Thanks to the short, precise and selective information supplied by the PSM system, the outage time due to faults can be drastically reduced. Thereby reliability and security of the power transmission is assured. Excellent decision support is provided be- cause the user is able to access all relevant information at any place, any time, anywhere from a central server. With the statistical information gathered from the archived data, the weakness of the system can be ascertained and corrected. An enterprise-wide risk assessment can conse- quently be performed aided by on-line and archived data and information. PSM relieves the operator by generating automatically short fault reports in case of a line fault. These reports can be configured to be printed, depending on different configur- able conditions. Only relevant reports are generated and irrelevant ones are suppressed. This prevents unhelpful information flooding the operator in his difficult situation after a line has tripped. PSM is a scalable solution, which allows a step-by-step implementation and integration into the existing power network. This allows a very flexible system investment, which can also be matched to the existence of installed numerical devices and fault recorders as well as communication aspects to particular sta- tions. Introduction User benefits

Transcript of InformIT Power System Monitoring PSM 510, PSM …...PSM 510, PSM 511 PSM 530, PSM 550 Technical Data...

Page 1: InformIT Power System Monitoring PSM 510, PSM …...PSM 510, PSM 511 PSM 530, PSM 550 Technical Data 1MRB520375-Ben Page 1 Issued: July 2003 Changed since: May 2003 Data subject to

InformIT Power System Monitoring

Workplaces

PSM 510, PSM 511PSM 530, PSM 550

Technical Data

1MRB520375-BenPage 1

Issued: July 2003Changed since: May 2003

Data subject to change without notice

Accurate, consistent and dependable infor-mation is the basis for an efficient opera-tional system and becomes crucial to making the right decisions in the event of a power system fault. A PSM system provides easy access to accurate and reliable information for all concerned departments of the utility in order to aid faster and easier detection and resolving of problems.

The PSM is an open, flexible and modular monitoring system. The various functional modules are tailored and packaged into workplaces for the individual requirements of diverse user groups.

All workplaces described in this data sheet assume the existence of an installed central server, PSM 500.

Thanks to the short, precise and selective information supplied by the PSM system, the outage time due to faults can be drastically reduced. Thereby reliability and security of the power transmission is assured.

Excellent decision support is provided be-cause the user is able to access all relevant information at any place, any time, anywhere from a central server.

With the statistical information gathered from the archived data, the weakness of the system can be ascertained and corrected. An enterprise-wide risk assessment can conse-quently be performed aided by on-line and archived data and information.

PSM relieves the operator by generating automatically short fault reports in case of a line fault. These reports can be configured to be printed, depending on different configur-able conditions. Only relevant reports are generated and irrelevant ones are suppressed. This prevents unhelpful information flooding the operator in his difficult situation after a line has tripped.

PSM is a scalable solution, which allows a step-by-step implementation and integration into the existing power network. This allows a very flexible system investment, which can also be matched to the existence of installed numerical devices and fault recorders as well as communication aspects to particular sta-tions.

Introduction

User benefits

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User benefits (cont´d)

The system design is completely described in [2], see chapter "Other relevant docu-ments”.

Relevant for the workplace description is the server-client architecture able to be applied on the network level as well as on the station level.

Server-client architecture The heart of a PSM installation is a central server. This server is located at a central

point in the network, e.g. at the head office or at the control centre.

All disturbance records and data uploaded from the stations are referenced and stored in the central database of this central server. Different workplaces (clients), which have sufficient access rights to the central server, can use the data and additional results calcu-lated automatically or use supplementary services, which may be installed on the server.

Fig. 1 Server-client architecture of PSM

System design

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The different software functions are pack-aged for the different workplaces. Options can be ordered and will be enabled with software keys, see chapter "License han-dling”.

PSM 510 Operator workplace package connected to a PSM 500 central server This package is intended for the operator. It provides reading access to all short fault reports. Optionally, the geographic fault in-formation service can be installed or a manual fault analysis may be integrated.

PSM 530 Maintenance management work-place package connected to a PSM 500 central server This package provides reading access to all short fault reports and a tool for statistical analysis to locate weak points in the net-work. Optionally, the geographic fault in-formation service can be installed.

PSM 550 Protection engineer workplace package connected to a PSM 500 central server This package supports the protection engi-neer with a very powerful disturbance record

analysis tool for manual fault analysis and statistical analysis. The geographic fault in-formation service or a tool for device pa-rameter visualization may be integrated as an option.

PSM 511 Station fault analysis workplace package connected to a PSM 501 station server This package provides access to all local short fault reports generated by the local station server. The manual fault analysis module and the optional device parameter visualization enable the local personnel to make further fault investigations and to change the relevant settings from one work-place.

Remark The module "geographic fault information" is currently installed as a pilot project with a customer. Please contact our sales people for more information.

Workplace pack-ages

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Workplace packages (cont´d)

The PSM software consists of different func-tional modules. These modules are combined in different ways to build a PSM server ap-plication, a PSM station installation or PSM workplaces.

Fig. 2 shows the graphical representation of the modules. Every PSM installation has access to a database module, which works as data storage. The modules in the outer pie slice are dependent on a module in an inner pie slice. E.g. the module E_notify requires an “E_wineve Server” installation with automatic fault location.

Enterprise applications Customized applications combine infor-mation gained by PSM with data provided by other software systems or applications.

For example, a gateway to an Enterprise Resource Planning application (ERP) en-ables PSM to merge the duty roster of the maintenance staff with the PSM notification service, and therefore only the available per-sonnel is alarmed in case of a line fault.

Another possible application uses informa-tion imported from an asset management application. Additional fault information, e.g. drawings of poles close to the fault, could be displayed on the workplace of a maintenance engineer. Or the list of recom-mended tools and spare parts, which may be necessary for repair of the line is appended to the e-mail, which is forwarded by the PSM notification service.

Furthermore the statistical analysis module of PSM could be extended reusing data from a public lightning database. The location of the lightning could be correlated with the exact fault locations calculated by PSM. The result gained by this correlation implies re-duced investments in surge arresters or other selective steps to improve power reliability.

New views generated by all these applica-tions can be integrated and displayed on specified PSM workplaces.

Ask our sales staff. In close cooperation with you, they will work out specifications, which represent your needs and generate long-term profitability.

Fig. 2 Modules of the PSM software suite

Software module and feature over-view

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Some of the modules themselves exist in different versions. Enterprise or expert ver-sions allow full functionality with highest

performance. The modules are described in detail below.

Table 1: Key features of the PSM workplaces

Module Features PSM 510 PSM 530 PSM 550 PSM 511

Viewing of already generated short reports X X X X

Oscillography viewing of disturbance records X X X X

Manual saving of file in COMTRADE format X X X X

Phasor display: Displaying of voltages, cur-rents and impe-dances

X X X

Phasor display: Displaying the locus of volt-ages, currents and impedances

X X X

Phasor display: Viewing of signals as symmet-rical components

X X X

Phasor display: Animation Expert Expert

Phasor display: Overlaying phasors with im-pedance settings of RE.2/316

Expert Expert

Merging of two disturbance records X X

Calculating new signals with the formula editor X X

Manual "One-Terminal Fault Location" (OTFL) X X

E_wineve

Manual "Two-Terminal Fault Location" (TTFL) X X

E_statistic Statistical fault information Expert Expert

Viewing of the configuration of the PSM sys-tem

X E_navigate

Changing the configuration of the PSM system X*

E_gis Geographical fault information on a map On request

E_param Remote setting of devices Possible from the PSM 500 central server

E_com Manual file upload from stations Possible from the PSM 500 central server

* Only authenticated users are able to change the settings

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Software module and feature overview (cont´d)

This module is used to configure PSM with static information about the power grid represented by substation lines and feeders. Also the secondary devices and the mapping of measured signals and power lines are con-figured with this module. It provides the following key features:

• Easy navigation because of tree structure with expandable nodes

• Stations can be combined to regions

• Devices are grouped into stations

• Aside from the tree structure graphical panes exist in addition

• A freely configurable background can be added to every pane

• Pull-down menus for any tree node and icon

• Freely configurable comments appearing when the mouse pointer crosses an icon

• User authentication based on the Win-dows user group concept

• Different authentication levels for view-ing or changing the configuration.

The graphical view of the communication network and a tree-structured view of all

recording devices simplify navigation. De-vices are grouped in stations. For big instal-lations it might be helpful to group stations in regions.

The tree structure is also displayed on graphical panes. An overview with all sub-stations is displayed on one pane. For every region and substation there is a separate pane, where the devices and substation icons can be arranged in any way desired. In addi-tion a bitmap background may be added to every pane, which provides additional in-formation for the user.

Pull-down menus containing all relevant commands are available for every node in the tree node and also for every icon in the graphical pane just by a right mouse click.

The authentication is based on a strong user management of the Windows operating sys-tem. This allows high security against un-wanted access to PSM data.

This module is installed on the PSM central server and also on all PSM station servers. It is especially needed for stand-alone distur-bance record evaluating installations without network connection to a PSM server.

The module E_navigate

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Fig. 3 E_navigate to configure PSM

The module called "E_wineve Workplace" contains a viewer with a large number of useful features to display disturbance re-cords.

Interactively different algorithms for fault location can be applied, and strong interac-tive evaluation tools enable the user to per-form an in-depth post-mortem analysis of disturbance records.

Oscillography visualization After opening a disturbance record file analysis, support is given by means of:

• a simultaneous display of several distur-bance records in different windows

• a cursor line able to be positioned to a numeric time value, whereby the corre-sponding values of the signals are updated

• zooming in/out the interesting part of a display by expanding the amplitude and/or time axis

• a free arrangement of all signals or com-posing of several signals on one time axis, e.g. all voltages on the same horizontal axis

• signals able to be hidden and inserted later on

• selection of the color for each analog and digital signal.

For every configured device the user may store up to ten different individual layout settings, containing for example, the pre-ferred amplitude size and axis height, zoom values and hidden signals.

The module E_wineve work-place

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The module E_navigate (cont´d)

Supported file formats E_wineve is able to handle various standard and proprietary file formats of the distur-bance recordings. Files can be opened, dis-played and evaluated for the following file formats:

• ABB Indactic EVE format

• ABB REVAL format

• COMTRADE file format IEEE C37.111-1991

• COMTRADE file format IEEE C37.111-1999.

The files may be saved and optionally con-verted into all mentioned formats except for the ABB REVAL file format.

Fig. 4 Curve representation of a disturbance record

Merging of two disturbance record files The merge function allows the combination of data for the same fault recorded by differ-ent acquisition units. This results in a new data set with selected measurements from an extended area that can be used for further analysis by additional functions, such as power analysis calculation and fault location.

• Merging of different recorded fault data

for in-depth analysis

• Automatic synchronization of both data sets, i.e. the time axes of both data sets are made to correspond exactly within <0.1 ms with regard to the event e.g. in a 1½ breaker scheme

• Merging on the basis of the discontinuity of a "common" analog signal in both files

The module E_wineve work-place (cont’d)

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• Free selection of signals to be combined

• Saving of the new combined data set for further processing is possible in the sup-ported file formats.

Manual fault location E_wineve has integrated high-end fault loca-tion algorithms producing accurate results even for high-impedance short circuits be-tween lines or for line-to-earth faults. Line parameters entered by the user are utilized for the fault location calculation.

After a fault location algorithm has been applied, the results are presented in the form of a "Short fault report", an easy to read one-page report containing all facts.

The algorithms have the following features:

• Calculation of the loop impedance of the faulted line

• Correct interpretation of short circuits to earth, two- or three-phase short circuits and symmetrical or asymmetrical lines

• Parallel lines are considered by the fault location algorithms.

One-terminal fault location • The accuracy of the fault location is de-

pendent on the fault resistance and it is typical better than 3.5% of the distance to fault, if one disturbance record from one line terminal is considered.

Two-terminal fault location This algorithm uses disturbance records re-corded in different substations connected to both ends of a faulty line. Combining the information of both disturbance records, the fault location is calculated with an improved accuracy. It would be a simple way to im-plement a "two-terminal fault location", cal-culating the average value of the result of using a one-terminal location algorithm ap-plied from both line ends. But the two-terminal fault location algorithm developed by the utility TVA (Tennessee Valley Au-thority) together with ABB is much more advanced. This algorithm combines samples from both disturbance records initially and therefore minimizes line parameter uncer-tainties and source impedance influence bound to change a quite a lot in case of a fault.

The typical accuracy of a "two-terminal fault location algorithm is 1% of the line length.

Fig. 5 Two-terminal fault location algorithm applied to disturbance records provided by a

customer. OTFL means One-Terminal Fault Location, TTFL means Two-Terminal Fault Location. The yellow arrow symbolizes the real fault location.

Example from a customer

Line length

OTFL from A OTFL from B TTFL Real distance

139.0 km 28.3 km 104 km 29.6 km from A 109.4 km from B

30.6 km from A 108.4 km from B

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The module E_wineve workplace (cont’d) (cont´d)

Two-terminal fault location details Before E_wineve applies the “two-terminal fault location algorithm” to two DR files, it checks the following three conditions:

• The fault is on the same line and phase, referenced in the disturbance records

• The fault type seen from both sides is equal

• The trigger time of both files differs by less than some seconds.

The two-terminal fault location algorithm has the following limitation in the actual PSM V1.5 version:

• The fault recorder has to be configured with the same sampling rate on both line ends.

Short fault report The information printed out in the "short report" (see Fig. 6) is the following:

• General information about the fault event

- Name of the acquisition unit recording the disturbance

- Number of the acquisition devices

- Date and time of the disturbance record

- Information of the line name and line length

- The complete directory path and name of the disturbance fault record

- Duration of the fault record

• Information regarding the trigger, which causes the record

- Type of trigger

• Information regarding the disturbance and location of the fault

- Fault type

- Fault duration

- Impedance at the fault in the polar and Cartesian format

- Distance to the fault.

Fig. 6 “Short Fault Report”

Power analysis calculations The power analysis calculation can be used to derive useful data for in-depth fault analy-sis by means of additional calculations and the combination of recorded signals. For example, the analysis of the harmonics pro-vides a measure of the quality of a voltage. It also permits the calculation of the effective short-circuit power, which has resulted in damage to the switching elements, using the measured short-circuit currents and voltages. The loop impedance as a function of time (impedance and phase angle) derived from the sequence of the voltage and current is another possible calculation.

• Sum, difference, multiplication and divi-sion and average of input signals

• Pre-programmed function for the calcula-tion of

- RMS values

- impedance and power vectors

- harmonic contents

- frequency deviation

• Formula editor, on-line syntax check, and test execution of the calculation program

• Linking the stored calculation for auto-matic execution.

The module E_wineve work-place (cont’d)

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Fig. 7 Power analysis calculation functions phasor display

Phasor display The new, combined phasor and impedance display dialog is a powerful tool to analyse voltage and current measurements as part of an opened disturbance record. It shows the results of the phasor and impedance calcula-tions (with complex algebra) in a polar chart and in a numerical data table. The polar chart may be printed and the calculated results saved in a text file for further examination with other tools (e.g. Microsoft Excel). For certain relay types, the impedance calcula-tion results may be superimposed with the line or distance protection zones after im-porting the corresponding relay parameter file.

Functions of the phasor display E_wineve provides the following different views to display analog signals in the phasor display:

• Showing all voltages and currents of a selected line in the phasor diagram

• Displaying a freely arranged combination of analog signals in the phasor diagram

• Showing the impedances of a line in the polar chart (phase-to-phase and phase-to-earth impedances)

• Displaying the locus of the phasors (volt-ages, currents or line impedances) related to a freely selectable time interval

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The module E_wineve workplace (cont’d)

• Exporting the values of a selected time interval to a text file for further exami-nation by other tools (e.g. Microsoft Ex-cel)

• Calculation of symmetrical components for three-phase systems.

Fig. 8 The phasors of the voltages and

currents together with the locus in the phasor display

Fig. 9 The same as in Fig. 8, in addition

the green-coloured voltage phasor remains constant

Fig. 10 Apparent line impedance. Sample

markers are enabled

Fig. 11 Symmetrical components of volt-

ages and currents, captured in the "full screen mode"

Easy-to-use features of the phasor dis-play Some features are designed to increase the user-friendliness of the tool and to support the user with expressive screen shots for documentation issues or further analysis:

• Zooming in and out the graphical polar chart

• Hiding and re-displaying signals

• Enlarging the polar chart to the complete screen size

• Direct printing of charts

• Displaying sample points, which point out big dynamics of signals.

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Expert features of the phasor display E_wineve provides two special features for experts working in the protection fields:

• Phasor animation

• Overlaying the impedance view with the zone settings of a distance protection re-lay.

The integrated animation tool visualizes the dynamic behaviour of the voltage and cur-rent measurements. Thereby the movement of the phasors and the composition of the

loci are shown in a short animation. In addi-tion the numerical data table is updated after each simulation step and the cursor in the curve representation is moved over the cor-responding time interval.

If a distance protection relay is involved in a line trip, it is also very helpful to overlay the impedance view of the disturbance record with the zone settings of the relay. The ver-sion V1.5 of PSM supports this feature for the RE.316*4 devices only.

Fig. 12 Locus of the impedance of one phase after a phase-to-earth fault. The curve is over-

laid with the zone settings of a distance protection relay

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The module E_wineve workplace (cont’d) (cont´d)

E_param allows the use of device parame-terization tools from remote places.

The module uses the on-line screen captur-ing functionality of a commercially available software. Therefore the device tools are run-ning locally in the station server and the screen is captured and transmitted using the Microsoft Windows communication to a remote working place.

The advantage of this solution is that in case of a communication interruption the critical data transfer between the device and "device setting software" is not affected.

Because the automatic disturbance upload function has to be stopped manually before connecting it to the station for remote parameterization, it is not possible to use E_param from a PSM workplace, but from the central server PSM 500.

The standard version of this module allows statistical analysis of all fault reports. Each occurring fault is managed as a data set in which the most important values are stored.

• A typical recording contains the station number and name, the event number and date, the trigger type and criterion, the line name, the type of fault, the distance-to-fault and the fault duration

• The records in the database may be sorted in ascending or descending order based on four priority levels of sorting keys. The keys may be selected from any of the fol-lowing attributes (see Fig. 13):

- Disturbance record, fault location re-port directory path and file names

- Station number, station name and line name

- Event number, event date and time

- Trigger type

- Fault distance, fault duration, fault type

• Extended search functions in the data-base, whereby the returned fault location results and expert analyses are filtered ac-cording to the following criteria (see Fig. 14):

- Station

- Line

- Fault type

- Date or period selection

- Fault distance

- Fault duration

- Fault trigger types

• File administration with editing functions for adding/deleting records and storing the configuration data for the output of the database records on the screen (see Fig. 15)

• Data export as text file able to be im-ported into Microsoft Excel.

Fig. 13 Sorting function of the expert data-

base.

The module E_param

The module E_statistic

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Fig. 14 Search function of the records in the

database

Fig. 15 Configuration of the on-screen out-put of the disturbance records

The functions of PSM are license-protected. Every PSM installation requires a software key, which is bound to the PC hardware.

In order to get the required license key, in-stall all modules of PSM you are interested in. Start the module E_wineve or E_com and fill in the license request form. The form can be found under the menu "options"; click "License...". After pressing OK your license request file will be generated. Send the file, named "PSMLicense.req", via e-mail to SA-

[email protected] and you'll get the software key, which enables the ordered functions. Alternatively you can send us the request file on a diskette. In case the e-mail and mail service do not work you can send the requested file via fax using a simple text editor such as Notepad for opening and printing.

Please mention the order or project number in the e-mail or fax.

Fig. 16 The method of getting the license key, which is required to enable the modules and

functions of PSM

License handling

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ABB Switzerland Ltd Utility Automation Systems Brown-Boveri-Strasse 6 CH-5400 Baden/Switzerland Tel. +41 58 585 77 44 Fax +41 58 585 55 77 E-mail: [email protected] www.abb.com/substationautomation

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License handling (cont´d)

PSM runs on the listed Windows® operating system and has the following requirements on the PC-hardware.

Table 2: PSM 510, PSM 511, PSM 530, PSM 550 workplaces

Minimum requirements of the used hardware

• Intel Pentium – 2 GHz CPU or equivalent

• 512 MBytes RAM

• 20 GBytes hard disk storage for SW and operating system storage. Capacity for the disturbance record is not considered hereby

• CD-ROM drive

• Keyboard, mouse

• Monitor resolution: 1024 by 768 pixels with 65535 colours

• LAN connection to the PSM server.

Operating system: • Microsoft Windows® 2000 Professional with service pack 3 at mini-mum

• Microsoft Windows® XP.

[1] InformIT Power System Monitoring, brochure 1KHA-000829-SEN

[2] InformIT Power System Monitoring Central Server, Station Server PSM 500, PSM 501 1MRB520355-Ben

[3] InformIT Power System Monitoring Stand-alone Fault Analysis and Evaluation Tool PSM 505 1MRB520376-Ben

[4] Substation Monitoring System SMS530 1MRB520268-Ben

Technical requirements

Other relevant documents