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MiCOM P740

Differential BusbarProtection Relay

Software Version 33

Hardware Suffix J and K

Technical Manual

P740/EN M/G54

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Note: The technical manual for this device gives instructions for its installation, commissioning, and operation.However, the manual cannot cover all conceivable circumstances or include detailed information on all

topics. In the event of questions or specific problems, do not take any action without proper authorization.Contact the appropriate AREVA technical sales office and request the necessary information.

Any agreements, commitments, and legal relationships and any obligations on the part of AREVA includingsettlements of warranties, result solely from the applicable purchase contract, which is not affected by thecontents of the technical manual.

This device MUST NOT be modified. If any modification is made without the express permission ofAREVA, it will invalidate the warranty, and may render the product unsafe.

The AREVA logo and any alternative version thereof are trademarks and service marks of AREVA.

MiCOM is a registered trademark of AREVA. All trade names or trademarks mentioned herein whether registered or not,are the property of their owners.

This manual is provided for informational use only and is subject to change without notice.

2005, AREVA. All rights reserved.

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SAFETY GUIDE 1/10

STANDARD SAFETY STATEMENTS AND EXTERNALLABEL INFORMATION FOR AREVA T&D EQUIPMENT

1.

INTRODUCTION 2

2. HEALTH AND SAFETY 2

3. SYMBOLS AND EXTERNAL LABELS ON THE EQUIPMENT 3

3.1 Symbols 3

3.2 Labels 3

4. INSTALLING, COMMISSIONING AND SERVICING 3

5.

DECOMMISSIONING AND DISPOSAL 6

6.

EQUIPMENT WHICH INCLUDES ELECTROMECHANICALELEMENTS 6

7. TECHNICAL SPECIFICATIONS FOR SAFETY 6

7.1 Protective fuse rating 6

7.2 Protective Class: 6

7.3 Installation Category: 6

7.4 Environment: 7

8. COMPLIANCE MARKING FOR APPLICABLE EUROPEANDIRECTIVES 7

9. RECOGNIZED AND LISTED MARKS FOR NORTH AMERICA 8

9.1 General Labels 9

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1. INTRODUCTION

This guide and the relevant equipment documentation provide full information on safehandling, commissioning and testing of this equipment. This Safety Guide also includesdescriptions of equipment label markings.

Documentation for equipment ordered from AREVA T&D is despatched separately frommanufactured goods and may not be received at the same time. Therefore this guide isprovided to ensure that printed information which may be present on the equipment is fullyunderstood by the recipient.

The technical data in this safety guide is typical only, see the technical data section of therelevant product publication(s) for data specific to a particular equipment.

Before carrying out any work on the equipment the user should be familiar with thecontents of this Safety Guide and the ratings on the equipments rating label.

Reference should be made to the external connection diagram before the equipment isinstalled, commissioned or serviced.

Language specific, self-adhesive User Interface labels are provided in a bag for someequipment.

2. HEALTH AND SAFETY

The information in the Safety Section of the equipment documentation is intended to ensurethat equipment is properly installed and handled in order to maintain it in a safe condition.

It is assumed that everyone who will be associated with the equipment will be familiar withthe contents of that Safety Section, or this Safety Guide.

When electrical equipment is in operation, dangerous voltages will be present in certain parts

of the equipment. Failure to observe warning notices, incorrect use, or improper use mayendanger personnel and equipment and also cause personal injury or physical damage.

Before working in the terminal strip area, the equipment must be isolated.

Proper and safe operation of the equipment depends on appropriate shipping and handling,proper storage, installation and commissioning, and on careful operation, maintenance andservicing. For this reason only qualified personnel may work on or operate the equipment.

Qualified personnel are individuals who

Are familiar with the installation, commissioning, and operation of the equipment andof the system to which it is being connected;

Are able to safely perform switching operations in accordance with accepted safetyengineering practices and are authorised to energize and de-energize equipment andto isolate, ground, and label it;

Are trained in the care and use of safety apparatus in accordance with safetyengineering practices;

Are trained in emergency procedures (first aid).

The equipment documentation gives instructions for its installation, commissioning, andoperation. However, the manual cannot cover all conceivable circumstances or includedetailed information on all topics. In the event of questions or specific problems, do not takeany action without proper authorization. Contact the appropriate AREVA technical salesoffice and request the necessary information.

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3. SYMBOLS AND EXTERNAL LABELS ON THE EQUIPMENT

For safety reasons the following symbols and external labels, which may be used on theequipment or referred to in the equipment documentation, should be understood before theequipment is installed or commissioned.

3.1 Symbols

Caution: refer to equipment documentation Caution: risk of electric shock

Protective Conductor (*Earth) terminal. Functional/Protective Conductor Earthterminal

Note This symbol may also be used for a Protective Conductor (Earth) terminal if thatterminal is part of a terminal block or sub-assembly e.g. power supply.

*NOTE: THE TERM EARTH USED THROUGHOUT THIS GUIDE IS THEDIRECT EQUIVALENT OF THE NORTH AMERICAN TERMGROUND.

3.2 Labels

See pages 34 - 40 for equipment labeling information.

4. INSTALLING, COMMISSIONING AND SERVICING

Equipment connections

Personnel undertaking installation, commissioning or servicing work for thisequipment should be aware of the correct working procedures to ensure safety.

The equipment documentation should be consulted before installing,commissioning, or servicing the equipment.

Terminals exposed during installation, commissioning and maintenance maypresent a hazardous voltage unless the equipment is electrically isolated.

Any disassembly of the equipment may expose parts at hazardous voltage, alsoelectronic parts may be damaged if suitable electrostatic voltage discharge (ESD)precautions are not taken.

If there is unlocked access to the rear of the equipment, care should be taken byall personnel to avoid electric shock or energy hazards.

Voltage and current connections should be made using insulated crimpterminations to ensure that terminal block insulation requirements are maintainedfor safety.

Watchdog (self-monitoring) contacts are provided in numerical relays to indicatethe health of the device. AREVA T&D strongly recommends that these contactsare hardwired into the substation's automation system, for alarm purposes.

To ensure that wires are correctly terminated the correct crimp terminal and tool

for the wire size should be used.The equipment must be connected in accordance with the appropriate connectiondiagram.

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Protection Class I Equipment:

- Before energizing the equipment it must be earthed using the protectiveconductor terminal, if provided, or the appropriate termination of thesupply plug in the case of plug connected equipment.

- The protective conductor (earth) connection must not be removed since

the protection against electric shock provided by the equipment would belost.

- When the protective (earth) conductor terminal (PCT) is also used toterminate cable screens, etc., it is essential that the integrity of theprotective (earth) conductor is checked after the addition or removal ofsuch functional earth connections. For M4 stud PCTs the integrity of theprotective (earth) connections should be ensured by use of a locknut orsimilar.

The recommended minimum protective conductor (earth) wire size is 2.5 mm(3.3 mm for North America) unless otherwise stated in the technical data sectionof the equipment documentation, or otherwise required by local or country wiringregulations.

The protective conductor (earth) connection must be low-inductance and as shortas possible.

All connections to the equipment must have a defined potential. Connections thatare pre-wired, but not used, should preferably be grounded when binary inputsand output relays are isolated. When binary inputs and output relays areconnected to common potential, the pre-wired but unused connections should beconnected to the common potential of the grouped connections.

Before energizing the equipment, the following should be checked:

- Voltage rating/polarity (rating label/equipment documentation);

- CT circuit rating (rating label) and integrity of connections;

- Protective fuse rating;

- Integrity of the protective conductor (earth) connection (whereapplicable);

- Voltage and current rating of external wiring, applicable to the application.

Accidental touching of exposed terminals

If working in an area of restricted space, such as a cubicle, where there is a risk ofelectric shock due to accidental touching of terminals which do not comply withIP20 rating, then a suitable protective barrier should be provided.

Equipment use

If the equipment is used in a manner not specified by the manufacturer, theprotection provided by the equipment may be impaired.

Removal of the equipment front panel/cover

Removal of the equipment front panel/cover may expose hazardous live parts,which must not be touched until the electrical power is removed.

UL and CSA listed or recognized equipment

To maintain UL and CSA approvals the equipment should be installed using ULand/or CSA listed or recognized parts of the following type: connection cables,protective fuses/fuseholders or circuit breakers, insulation crimp terminals, andreplacement internal battery, as specified in the equipment documentation.

Equipment operating conditionsThe equipment should be operated within the specified electrical andenvironmental limits.

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Current transformer circuits

Do not open the secondary circuit of a live CT since the high voltage producedmay be lethal to personnel and could damage insulation. Generally, for safety,the secondary of the line CT must be shorted before opening any connections toit.

For most equipment with ring-terminal connections, the threaded terminal blockfor current transformer termination has automatic CT shorting on removal of themodule. Therefore external shorting of the CTs may not be required, theequipment documentation should be checked to see if this applies.

For equipment with pin-terminal connections, the threaded terminal block forcurrent transformer termination does NOT have automatic CT shorting on removalof the module.

External resistors, including voltage dependent resistors (VDRs)

Where external resistors, including voltage dependent resistors (VDRs), are fittedto the equipment, these may present a risk of electric shock or burns, if touched.

Battery replacement

Where internal batteries are fitted they should be replaced with the recommendedtype and be installed with the correct polarity to avoid possible damage to theequipment, buildings and persons.

Insulation and dielectric strength testing

Insulation testing may leave capacitors charged up to a hazardous voltage. At theend of each part of the test, the voltage should be gradually reduced to zero, todischarge capacitors, before the test leads are disconnected.

Insertion of modules and pcb cards

Modules and PCB cards must not be inserted into or withdrawn from theequipment whilst it is energized, since this may result in damage.

Insertion and withdrawal of extender cards

Extender cards are available for some equipment. If an extender card is used,this should not be inserted or withdrawn from the equipment whilst it is energized.This is to avoid possible shock or damage hazards. Hazardous live voltages maybe accessible on the extender card.

External test blocks and test plugs

Great care should be taken when using external test blocks and test plugs suchas the MMLG, MMLB and MiCOM P990 types, hazardous voltages may beaccessible when using these. *CT shorting links must be in place before theinsertion or removal of MMLB test plugs, to avoid potentially lethal voltages.

*Note: When a MiCOM P992 Test Plug is inserted into the MiCOM P991 TestBlock, the secondaries of the line CTs are automatically shorted, making

them safe.Fiber optic communication

Where fiber optic communication devices are fitted, these should not be vieweddirectly. Optical power meters should be used to determine the operation orsignal level of the device. . All LED and Laser devices used in our products areAEL Class I in accordance with IEC 60825-1, unless otherwise stated in theproduct technical data.

Cleaning

The equipment may be cleaned using a lint free cloth dampened with clean water,when no connections are energized. Contact fingers of test plugs are normallyprotected by petroleum jelly, which should not be removed.

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5. DECOMMISSIONING AND DISPOSAL

De-commissioning

The supply input (auxiliary) for the equipment may include capacitors across thesupply or to earth. To avoid electric shock or energy hazards, after completely

isolating the supplies to the equipment (both poles of any dc supply), thecapacitors should be safely discharged via the external terminals prior tode-commissioning.

Disposal

It is recommended that incineration and disposal to water courses is avoided.The equipment should be disposed of in a safe manner. Any equipmentcontaining batteries should have them removed before disposal, takingprecautions to avoid short circuits. Particular regulations within the country ofoperation, may apply to the disposal of the equipment.

6. EQUIPMENT WHICH INCLUDES ELECTROMECHANICAL ELEMENTS

Electrical adjustments

It is possible to change current or voltage settings on some equipment by directphysical adjustment e.g. adjustment of a plug-bridge setting. The electrical powershould be removed before making any change, to avoid the risk of electric shock.

Exposure of live parts

Removal of the cover may expose hazardous live parts such as relay contacts,these should not be touched before removing the electrical power.

7. TECHNICAL SPECIFICATIONS FOR SAFETY

Unless otherwise stated in the equipment technical manual, the following data is applicable.

7.1 Protective fuse rating

The recommended maximum rating of the external protective fuse for equipments is 16A,high rupture capacity (HRC) Red Spot type NIT, or TIA, or equivalent. Unless otherwisestated in equipment technical manual, the following data is applicable. The protective fuseshould be located as close to the unit as possible.

DANGER - CTs must NOT be fused since open circuiting them mayproduce lethal hazardous voltages.

7.2 Protective Class

IEC 60255-27: 2005EN 60255-27: 2005

Class I (unless otherwise specified in the equipmentdocumentation). This equipment requires a protectiveconductor (earth) connection to ensure user safety.

7.3 Installation Category

IEC 60255-27: 2005EN 60255-27: 2005

Installation Category III (Overvoltage Category III):

Distribution level, fixed installation.

Equipment in this category is qualification tested at

5 kV peak, 1.2/50 s, 500 , 0.5 J, between allsupply circuits and earth and also betweenindependent circuits

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7.4 Environment

The equipment is intended for indoor installation and use only. If it is required for use in anoutdoor environment then it must be mounted in a specific cabinet or housing which willenable it to meet the requirements of IEC 60529 with the classification of degree ofprotection IP54 (dust and splashing water protected).

Pollution Degree - Pollution Degree 2 Compliance is demonstrated by reference to safetyAltitude - Operation up to 2000m standards.

IEC 60255-27:2005

EN 60255-27: 2005

8. COMPLIANCE MARKING FOR APPLICABLE EUROPEAN DIRECTIVES

The following European directives may be applicable to the equipment, if so it will carry therelevant marking(s) shown below:

MarkingCompliance with all relevant EuropeanCommunity directives:

Product safety:Low Voltage Directive - 73/23/EECamended by 93/68/EECEN 60255-27: 2005EN 60255-5: 2001

Compliance demonstrated by reference to safetystandards.

Electromagnetic Compatibility Directive(EMC) 89/336/EEC amended by

93/68/EEC.The following Product Specific Standardwas used to establish conformity:

EN 50263 : 2000

Compliance demonstrated via the TechnicalConstruction File route.

Where applicable :

II (2) G

ATEX Potentially ExplosiveAtmospheres directive 94/9/EC,for equipment.

The equipment is compliant with Article 1(2) of Europeandirective 94/9/EC. It is approved for operation outside anATEX hazardous area. It is however approved forconnection to Increased Safety, Ex e, motors with ratedATEX protection, Equipment Category 2, to ensure their

safe operation in gas Zones 1 and 2 hazardous areas.CAUTION - Equipment with this marking is not itselfsuitable for operation within a potentially explosiveatmosphere.

Compliance demonstrated by Notified Body certificates ofcompliance.

Radio and TelecommunicationsTerminal Equipment (R & TTE)directive 99/5/EC.

Compliance demonstrated by compliance to the LowVoltage Directive, 73/23/EEC amended by 93/68/EEC,down to zero volts, by reference to safety standards.
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9. RECOGNIZED AND LISTED MARKS FOR NORTH AMERICA

CSA - Canadian Standards Association

UL - Underwriters Laboratory of America

If applicable, the following marks will be present on the equipment:

UL Recognized to UL (USA) requirements

UL Recognized to UL (USA) and CSA (Canada) requirements

UL Listed to UL (USA) requirements

UL Listed to UL (USA) and CSA (Canada) requirements

Certified to CSA (Canada) requirements

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9.1 General Labels

TERMINALS OF EACH CIRCUITMUST BE CONNECTEDTOGETHERBEFORE FLASH TESTING

BETWEEN CIRCUITS OR TOEARTH

LIVE PARTS EXPOSEDWHEN COVER REMOVED

THIS PRODUCT CONTAINSA LITHIUM BATTERY

Use external resistor(s)

USE EXTL ANCILLARY EQUIP. SEE DIAGRAM

AREVA T&D UK Ltd

Energy Automation & InformationSt Leonards AvenueStafford ST17 4LX England

Tel: +44 (0) 1785 223251

Fax: +44 (0) 1785 212232

www.areva-td.com

Contact your nearest AREVA T&D officefor local services

Fabric. en/Made in Europe

REFER TO HANDBOOK BEFORECHANGING MODULE

2004 AREVA T&D Energy Automation &Information.

Software contained within this equipment shallnot be copied or otherwise reproduced
http://www.alstom.com/http://www.alstom.com/

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STAFFORD UK

nnnn

II (2) G

Name yy ATEX xxxx

EN 60255-6

IEC 60255-6

1 2

3

4

5

6

7

[1] nnnn - identifying number of the Notified Body which demonstrated manufacturing QualityAssurance compliance to EN 13980, e.g. 0891.

[2] Ex logo - signifies compliance with European ATEX directive 94/9/EC.

[3] Name - Notified Body which carried out the EC Type Examination of the equipment design andconstruction, e.g. PTB.

[4] yy - year certificate issued e.g. 03 for 2003.

[5] ATEX - compliance with European ATEX directive 94/9/EC.

[6] xxxx - approval number given by the Notified Body for the EC Type Examination of theequipment, e.g. 3043.

[7] (2) - The equipment is compliant with Article 1(2) of directive 94/9/EC. It is approved foroperation outside an ATEX hazardous area. It is however approved for connection toIncreased Safety motors with rated ATEX protection, Equipment Category 2, to ensure theirsafe operation in gas Zones 1 and 2 hazardous areas.

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CONTENTS

Update Documentation P740/EN AD/xxx

Section 1 Introduct ion P740/EN IT/G54

Section 2 Technical Data P740/EN TD/G54

Section 3 Getting Started P740/EN GS/G54

Section 4 Settings P740/EN ST/G54

Section 5 Operation P740/EN OP/G54

Section 6 Appl ication Notes P740/EN AP/G54

Section 7 Programmable Logic P740/EN PL/G54

Section 8 Measurements and Record ing P740/EN MR/G54

Section 9 Firmware Design P740/EN FD/G54

Section 10 Commission ing P740/EN CM/G54

Section 11 Maintenance P740/EN MT/G54

Section 12 Troubleshooting P740/EN TS/G54

Section 13 SCADA Communications P740/EN SC/G54

Section 14 Symbols and Glossary P740/EN SG/G54

Section 15 Installat ion P740/EN IN/G54

Section 16 Firmware and Service Manual Version History P740/EN VH/G54

TD

N/A

IT

ST

GS

OP

AP

PL

MR

FD

CM

VH

TS

SC

SG

IN

MT

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Introduction P740/EN IT/G54

MiCOM P740

IT

INTRODUCTION

Date: 2006

Hardware Suffix: J and K

Software Version: 33

Connection Diagrams: 10P740xx (xx = 01 to 07)

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P740/EN IT/G54 Introduction

MiCOM P740

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MiCOM P740 (IT) 1-1

IT

CONTENTS

1. MiCOM DOCUMENTATION STRUCTURE 3

2. INTRODUCTION TO MiCOM 5

3. PRODUCT SCOPE 6

3.1 Functional overview 6

3.2 Ordering options 8

FIGURES

Figure 1: Functional diagram 7

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(IT) 1-2 MiCOM P740

IT

BLANK PAGE

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MiCOM P740 (IT) 1-3

IT

1. MiCOM DOCUMENTATION STRUCTURE

The manual provides a functional and technical description of the MiCOM protection relayand a comprehensive set of instructions for the relays use and application.

The section contents are summarized below:

P740/EN IT Introduction

A guide to the MiCOM range of relays and the documentation structure. General safetyaspects of handling Electronic Equipment is discussed with particular reference to relaysafety symbols. Also a general functional overview of the relay and brief applicationsummary is given.

P740/EN TD Technical Data

Technical data including setting ranges, accuracy limits, recommended operating conditions,ratings and performance data. Compliance with norms and international standards is quotedwhere appropriate.

P740/EN GS Getting StartedA guide to the different user interfaces of the protection relay describing how to start using it.This section provides detailed information regarding the communication interfaces of therelay, including a detailed description of how to access the settings database stored withinthe relay.

P740/EN ST Settings

List of all relay settings, including ranges, step sizes and defaults, together with a briefexplanation of each setting.

P740/EN OP Operation

A comprehensive and detailed functional description of all protection and non-protection

functions.

P740/EN AP Appl ication Notes

This section includes a description of common power system applications of the relay,calculation of suitable settings, some typical worked examples, and how to apply the settingsto the relay.

P740/EN PL Programmable Logic

Overview of the programmable scheme logic and a description of each logical node. Thissection includes the factory default (PSL) and an explanation of typical applications.

P740/EN MR Measurements and Record ing

Detailed description of the relays recording and measurements functions including theconfiguration of the event and disturbance recorder and measurement functions.

P740/EN FD Firmware Design

Overview of the operation of the relays hardware and software. This section includesinformation on the self-checking features and diagnostics of the relay.

P740/EN CM Commission ing

Instructions on how to commission the relay, comprising checks on the calibration andfunctionality of the relay.

P740/EN MT Maintenance

A general maintenance policy for the relay is outlined.

P740/EN TS Troubleshooting

Advice on how to recognize failure modes and the recommended course of action. Includesguidance on whom within AREVA T&D to contact for advice.

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(IT) 1-4 MiCOM P740

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P740/EN SC SCADA Communications

This section provides an overview regarding the SCADA communication interfaces of therelay. Detailed protocol mappings, semantics, profiles and interoperability tables are notprovided within this manual. Separate documents are available per protocol, available fordownload from our website.

P740/EN SG Symbols and Glossary

List of common technical abbreviations found within the product documentation.

P740/EN IN Installat ion

Recommendations on unpacking, handling, inspection and storage of the relay. A guide tothe mechanical and electrical installation of the relay is provided, incorporating earthingrecommendations. All external wiring connections to the relay are indicated.

P740/EN VH Firmware and Service Manual Version History

History of all hardware and software releases for the product.

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MiCOM P740 (IT) 1-5

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2. INTRODUCTION TO MiCOM

MiCOM is a comprehensive solution capable of meeting all electricity supply requirements.It comprises a range of components, systems and services from AREVA T&D.

Central to the MiCOM concept is flexibility.

MiCOM provides the ability to define an application solution and, through extensivecommunication capabilities, integrate it with your power supply control system.

The components within MiCOM are:

P range protection relays;

C range control products;

M range measurement products for accurate metering and monitoring;

S range versatile PC support and substation control packages.

MiCOM products include extensive facilities for recording information on the state and

behaviour of the power system using disturbance and fault records. They can also providemeasurements of the system at regular intervals to a control centre enabling remotemonitoring and control to take place.

For up-to-date information on any MiCOM product, visit our website:

www.areva-td.com
http://www.areva-td.com/http://www.areva-td.com/http://www.areva-td.com/

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(IT) 1-6 MiCOM P740

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3. PRODUCT SCOPE

The MiCOM P740 differential busbar protection relays have been designed for the protectionof a wide range of substation busbars from distribution to transmission voltage levels. Therelays include a comprehensive range of non-protection features to aid with systemdiagnosis and fault analysis. The P740 offers integral biased differential busbar, breakerfailure, dead zone, overcurrent and earth-fault protection and is suitable for application onsolidly grounded, impedance grounded, Petersen coil grounded and isolated systems. Therelays are especially suitable where a complete scheme solution is required.

The scheme comprises of three relays:

The MiCOM P741 (Central Unit)

The MiCOM P742 and P743 (Peripheral Units)

Which, together with the topology configuration software and the dynamic synopticmonitoring tool, allow full flexibility for all configurations.

3.1 Functional overview

The P740 Busbar protection contains a wide variety of protection functions. The protectionfeatures are summarized below:

PROTECTION FUNCTIONS OVERVIEW P741 P742 P743

87BB / P Phase segregated biased current differential high speed busbar protection - -

87CZ / P Check Zone segregated biased phase current differential high speedbusbar protection

- -

87BB / N Sensitive earth fault bias current controlled busbar protection - -

87 CZ/ N Check Zone segregated biased earth current controlled busbar protection - -

50 / 51 / P Phase overcurrent protection (2 stages) -

50 / 51 / N Earth overcurrent protection (2 stages) -

50ST Dead zone protection (short zone between CTs and open CBs) -

CTS Current transformer supervision

50BF Breaker failure protection (LBB)

ISL Isolator discrepancy alarm -

Fibre optic signalling channel

Digital inputs 8 16 24

Output relays 8 8 16

Virtual Digital inputs (via fibre communication) 16 16 16

Virtual Output relays (via fibre communication) 16 16 16

Front communication port (RS232)

Rear communication port (Kbus/EIA(RS)485)

Rear communication port (Ethernet) * Option - Option

Time synchronisation port (IRIG-B) * Option - -

Function keys 10 - 10

Programmable tri-colour LEDs 18 - 18

Refer to the data sheet for model selection

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The P740 supports the following relay management functions in addition to the functionsillustrated above.

Trip circuit and coil supervision

4 Alternative setting groups

Programmable function keys (P741 and P743)

Control inputs

Programmable scheme logic

Programmable allocation of digital inputs and outputs

Sequence of event recording

Comprehensive disturbance recording (waveform capture)

Fully customizable menu texts

Multi-level password protection

Power-up diagnostics and continuous self-monitoring of relay

Appl ication overview

X

/

/

/ /

Fault records

Measurements

PSL

Local

Communication

Remote

comm. port

Busbar protection scheme

Peripheral Unit P742 / P743

LEDsBinaryInput / output

Self monitoring

50/

51/P

50/

51/N

Disturbance

Record

Fibre optic

signaling

channel

50BF50ST CTS

Fault records

Measurements

PSL

Local

Communication

Remote

comm. port

Busbar protection schemeCentral Unit P741

LEDsBinaryInput / output

Self monitoring

87BB

/ P

87BB

/ N87CZ

/ N

87CZ

/ P

Disturbance

Record

Fibre optic

signaling

channel

50BF CTS

ISL

FIGURE 1: FUNCTIONAL DIAGRAM

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(IT) 1-8 MiCOM P740

IT

3.2 Ordering options

Information Required with Order

Relay Type (Busbar Protection Relay) P741

Auxi li ary Vol tage Rating

24 48V dc only

48 125V dc (30 110V ac)

110 250V dc (100 240V ac)

1

2

3

Communication Boards

1 communication board (1 to 4 Peripheral Unit)

2 communication board (to 8 Peripheral Unit)





7 communication board ( to 28 Peripheral Unit)

1

2

3

4

5

6

7

Hardware options

Nothing

IRIG-B only

1

2

Product Specific

Fixed A

Protocol Options

K-Bus/Courier

IEC60870-5-103 (Via KITZ274)

1

1

Mounting

Panel Mounting M

Language

Multilingual English, French, German, Spanish

Multilingual English, French, German, Russian

0

5

Software Version

Unless specified the latest version will be delivered * *

Settings File

Default

Customer Specific

0

1

Hardware Suffix

Original K

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MiCOM P740 (IT) 1-9

IT


Auxi liary Vol tage Rating

24 48V dc only

48 125V dc (30 110V ac)110 250V dc (100 240V ac)

1

23

Hardware options

Without CT input

With CT input

0

1

Communication options

Nothing 1

Product Specific

Fixed A

Protocol Options

K-Bus/Courier

IEC60870-5-103 (Via KITZ274)

1

1Mounting

Panel Mounting M

Language



0

5

Software Version


Settings File

Default

Customer Specific

0

1

Hardware Suffix

Original J

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(IT) 1-10 MiCOM P740

IT


Auxi li ary Vol tage Rating

24 48V dc only

48 125V dc (30 110V ac)110 250V dc (100 240V ac)

1

23

Hardware options

Without CT input

With CT input

0

1

Communication options

Nothing 1

Product Specific

Fixed A

Protocol Options

K-Bus/Courier

IEC60870-5-103 (Via KITZ274)

1

1Mounting

Panel Mounting M

Language



0

5

Software Version


Settings File

Default

Customer Specific

0

1

Hardware Suffix

Original K

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Technical Data P740/EN TD/G54

MiCOM P740

TD

TECHNICAL DATA

Date: January 2006

Hardware Suffix: J and K



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P740/EN TD/G54 Technical Data

MiCOM P740

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MiCOM P740 (TD) 2-3

TD

Technical Data

Mechanical Specification

Design

Modular MiCOM Px40 platform relay:P741: Size 16 case (80TE)P742: Size 8 case (40TE)P743: Size 12 case (60TE)Mounting is front of panel flush mounting.

Enclosure Protection

Per IEC 60529: 1989IP 52 Protection (front panel) against dust anddripping water,IPx2 except P741 Protected againstvertically falling drops of water with the product

in 4 fixed positions of 15tilt with a flow rate of3mm/minute for 2.5 minutes.

Weight

P741 with 7 comm. boards 7.4 kgwith 1 comm. board 6.2 kg

P742 7.5 kgP743 9.2 kg

Terminals

AC Current and Voltage Measur ing InputsP742 and P743 onlyLocated on heavy duty (black) terminal block:Threaded M4 terminals, for ring lugconnection.CT inputs have integral safety shorting, uponremoval of the terminal block.

General Input/Output TerminalsFor power supply, opto inputs, output contactsand COM1 rear communications.Located on general purpose (grey) blocks:Threaded M4 terminals, for ring lugconnection.

Case Protective Earth ConnectionTwo rear stud connections (2 P741, 1 P742/3),threaded M4.Must be earthed (grounded) using theprotective (earth) conductor for safety,minimum wire size 2.5mm

2

.

Front Port Serial PC InterfaceEIA RS232 DTE, 9 pin D-type femaleconnector.Courier protocol for interface to MiCOM S1software.

*PEB rated Maximum cable length 15 m.

Front Download/Monitor PortEIA RS232, 25 pin D-type female connector.For firmware downloads.*PEB rated circuit.

Rear Communications PortK-Bus/EIA (RS)485 signal levels, two wireConnections located on general purpose block,M4 screw.For screened twisted pair cable, multidrop,1000 m max.

Courier protocol*SELV rated circuit

Optional Rear IRIG-B InterfaceP741 only(P742 & P743 synchronized by the P741)BNC plug*SELV rated circuit50 ohm coaxial cable.

Optical Fiber ConnectionBFOC 2.5 (ST) interface for multi-mode glass

fibre type 62.5/125 m, as per IEC 874-10, 850nm short-haul fibres, one Tx and one Rx.Optical budget: 5.6 dBData rate:2.5 MbitsMax Length: 1000 m

*PEB = Protective equipotential bonded*SELV = Safety/Separated extra low voltageBoth PEB and SELV circuits are safe to touchafter a single fault condition.

Ratings

AC Measuring InputsNominal frequency: 50 and 60 Hz (settable)Operating range: 45 to 65 HzPhase rotation: ABC or ACB

AC CurrentNominal current (In): 1 and 5 A dual rated.(1A and 5A inputs use different transformer tapconnections, check correct terminals arewired).Nominal burden per phase

1 A:

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(TD) 2-4 MiCOM P740

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Power supply

Auxi liary Vol tage (Vx)Three ordering options:(i) Vx: 24 to 48 Vdc

(ii) Vx: 48 to 110 Vdc,and 30 to 100 Vac (rms.)(iii) Vx: 110 to 250 Vdc,

and 100 to 240 Vac (rms.).

Operating Range(i) 19 to 65 V (dc only for this variant)(ii) 37 to 150 V(dc), 24 to 110 V (ac)(iii) 87 to 300 V(dc), 80 to 265 V (ac).With a tolerable ac ripple of up to 12 % for a dcsupply, per IEC 60255-11: 1979.

Nominal BurdenQuiescent burden:

P741: 37 to 41 WP742: 16 to 23 WP743: 22 to 32 W

Additions for energised binary inputs/outputs:Per opto input:

0.09 W(24 to 54 V),0.12 W...(110/125 V),0.19 W...(220/250 V).

Per energised output relay: 0.13 W

Power-up TimeTime to power up < 30 s.

Power Supply InterruptionPer IEC 60255-11: 1979The relay will withstand a 20ms interruption in

the DC auxiliary supply, withoutde-energising.

Per IEC 61000-4-11: 1994The relay will withstand a 20ms interruption in

an AC auxiliary supply, without de-energising.

Note: the use of a E124 extends these limits

Battery BackupFront panel mountedType AA, 3.6 V

Field Voltage OutputRegulated 48 VdcCurrent limited at 112 mA maximum output

Digital ( Opto ) InputsUniversal opto inputs with programmablevoltage thresholds. May be energised from the48 V field voltage, or the external batterysupply.Rated nominal voltage: 24 to 250 VdcOperating range: 19 to 265 VdcWithstand: 300 Vdc.

Nominal pick-up and reset thresholds:Pick-up: approx. 70 % of battery nominal set,Reset: approx. 66 % of battery nominal set.

Recognition time: 7 ms

Output Contacts

Standard ContactsGeneral purpose relay outputs for signalling,tripping and alarming:

Rated voltage: 300 VContinuous current: 10 AShort-duration current: 30 A for 3 sMaking capacity: 250 A for 30 msBreaking capacity:

DC: 50 W resistiveDC: 62.5 W inductive (L/R = 50 ms)

AC: 2500 VA resistive (cos = unity)

AC: 2500VA inductive (cos = 0.7)Response to command: < 5 msDurability:

Loaded contact: 10 000 operationsminimum,

Unloaded contact: 100 000 operationsminimum.

Watchdog ContactsNon-programmable contacts for relayhealthy/relay fail indication:Breaking capacity:

DC: 30 W resistiveDC: 15 W inductive (L/R = 40 ms)

AC: 375 VA inductive (cos = 0.7)

IRIG-B InterfaceExternal clock synchronisation per IRIGstandard 200-98, format B.

Input impedance 6 kat 1000 HzModulation ratio: 3:1 to 6:1Input signal, peak-peak: 200 mV to 20 V

Environmental Conditions

Ambient Temperature RangePer IEC 60255-6: 1988Operating temperature range:

-25 C to +55 C(or -13 F to +131 F).

Storage and transit:-40 C to +70 C

(or -28 F to +158 F).

Ambient Humidity RangePer IEC 60068-2-3: 1969:

56 days at 93 % relative humidityand +40 C

Per IEC 60068-2-30: 1980:Damp heat cyclic, six (12 + 12) hour cycles,93 % RH, +25 to +55 C

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MiCOM P740 (TD) 2-5

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Type Tests

InsulationPer IEC 60255-5: 2000,

Insulation resistance > 100 Mat 500 Vdc

(Using only electronic/brushless insulationtester).

Creepage Distances and ClearancesPer IEC 60255-27:2005

Pollution degree 3,Overvoltage category III,Impulse test voltage 5 kV.

High Voltage (Dielectric) Withstand(EIA RS232 ports excepted).Per IEC 60255-27:2005, 2 kV rms. AC, 1 min.

Between all case terminals connected

together, and the case earth.Also, between all terminals of independentcircuits.1 kV rms. AC for 1 minute, across openwatchdog contacts.1 kV rms. AC for 1 minute, across opencontacts of changeover output relays.

(ii) Per ANSI/IEEE C37.90-1989 (reaffirmed1994):

1.5 kV rms. AC for 1 minute, across opencontacts of changeover output relays.

Impulse Voltage Withstand Test

Per IEC 60255-27: 2005Front time: 1.2 s,Time to half-value: 50 s,

Peak value: 5 kV, 0.5 JBetween all terminals, and all terminals andcase earth.

Electromagnetic Compatibility (EMC)

1 MHz Burst High Frequency DisturbanceTestPer IEC 60255-22-1: 1988, Class III,

Common-mode test voltage: 2.5 kV,Differential test voltage: 1.0 kV,

Test duration: 2 s, Source impedance: 200 (EIA RS232 ports excepted).

Immunity to Electrostatic DischargePer IEC 60255-22-2: 1996, Class 4,

15 kV discharge in air to user interface,display, and exposed metalwork.Per IEC 60255-22-2: 1996, Class 3,

8 kV discharge in air to allcommunication ports.

6 kV point contact discharge to anypart of the front of the product.

Electrical Fast Transient or BurstRequirementsPer IEC 60255-22-4: 2002. Test severity ClassIII and IV:

Amplitude: 2 kV, burst frequency 5 kHz

(Class III),Amplitude: 4 kV, burst frequency 2.5 kHz(Class IV).

Applied directly to auxiliary supply, and appliedto all other inputs. (EIA RS232 portsexcepted).

Surge Withstand CapabilityPer IEEE/ANSI C37.90.1: 2002:

4 kV fast transient and 2.5 kV oscillatoryapplied directly across each output contact,optically isolated input, and power supplycircuit.

Surge Immunity Test(EIA RS232 ports excepted).Per IEC 61000-4-5: 2002 Level 4,

Time to half-value: 1.2 / 50 s,Amplitude: 4 kV between all groups andcase earth,Amplitude: 2 kV between terminals of eachgroup.

Immunity to Radiated ElectromagneticEnergyPer IEC 60255-22-3: 2000, Class III:

Test field strength, frequency band 80 to

1000 MHz:10 V/m,

Test using AM: 1 kHz / 80%,Spot tests at 80, 160, 450, 900 MHzPer IEEE/ANSI C37.90.2: 1995:

25 MHz to 1000 MHz, zero and 100%square wave modulated.

Field strength of 35 V/m.

Radiated Immunity from DigitalCommunicationsPer EN61000-4-3: 2002, Level 4:

Test field strength, frequency band 800 to

960 MHz, and 1.4 to 2.0 GHz:30 V/m,Test using AM: 1 kHz / 80%.

Radiated Immunity from Digital RadioTelephonesPer ENV 50204: 199510 V/m, 900 MHz and 1.89 GHz.

Immunity to Conducted DisturbancesInduced by Radio Frequency FieldsPer IEC 61000-4-6: 1996, Level 3,

Disturbing test voltage: 10 V

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Power Frequency Magnetic Field ImmunityPer IEC 61000-4-8: 1994, Level 5,

100 A/m applied continuously,1000 A/m applied for 3 s.

Per IEC 61000-4-9: 1993, Level 5,

1000 A/m applied in all planes.Per IEC 61000-4-10: 1993, Level 5,

100 A/m applied in all planes at 100 kHz/1MHz with a burst duration of 2 s.

Conducted EmissionsPer EN 55022: 1998:

0.15 0.5 MHz, 79 dBV (quasi peak) 66

dBV (average)

0.5 30 MHz, 73 dBV (quasi peak) 60

dBV (average).

Radiated EmissionsPer EN 55022: 1998:

30 230 MHz, 40 dBV/m at 10 mmeasurement distance

230 MHz 1 GHz, 47 dBV/m at 10 mmeasurement distance.

EU Directives

EMC Compl iancePer 89/336/EEC:

Compliance to the European CommissionDirective on EMC is claimed via theTechnical Construction File route. ProductSpecific Standards were used to establish

conformity:EN50263: 2000

Product SafetyPer 73/23/EEC:Compliance with European Commission LowVoltage Directive. Compliance is demonstratedby reference to generic safety standards:

IEC 60255-27:2005EN 60255-5:2001.

Mechanical Robustness

Vibration TestPer IEC 60255-21-1: 1996Response Class 2Endurance Class 2

Shock and BumpPer IEC 60255-21-2: 1995

Shock response Class 2Shock withstand Class 1Bump Class 1

Seismic TestPer IEC 60255-21-3: 1995

Class 2

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MiCOM P740 (TD) 2-7

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Protection Functions

Busbar trip(including trip relay closing time):11 ms (min)13 ms (typical)

Performance Data

Three phase overcurrent protectionAll quoted operating times include the closureof the trip output contact.

Accuracy

Pick-up: Setting 5 %

Drop-off: 0.95 x Setting 5 %Min. trip level of IDMT elements:

1.05 x Setting 5 %

IDMT shape: 5 % or 40 ms whichever is

greater (under reference conditions)*IEEE reset: 5 % or 40 ms whichever is

greater

DT operation: 2 % or 50 ms whichever isgreater

DT reset: Setting 5 %Characteristic

UK curves: IEC 60255-3 1998US curves: IEEE C37.112 1996

Dead Zone Protection

Accuracy

Pick-up: Setting 5%Drop-off: >0.95 x Setting

Min. trip level: 1.05 x Setting 5%

Earth Fault Protection

Accuracy

Pick-up: Setting 5%Drop-off: >0.85 x SettingMin. trip level of IDMT elements: 1.05 x Setting

5%

IDMT characteristic shape: 5 % or 40 mswhichever is greater

(under reference conditions)*IEEE reset: 10 % or 40 ms whichever is

greater

DT operation: 2 % or 50 ms whichever isgreater

DT reset: 5% or 50 ms whichever is greaterRepeatability: 7.5 %

Transient overreach and overshoot

AccuracyAdditional tolerance due to increasing X/R

ratios: 5% over the X/R ratio of 1 to 90

Overshoot of overcurrent elements: < 40 ms

Programmable scheme logic

Accuracy

Output conditioner timer: Setting 2 % or 50ms whichever is greater

Dwell conditioner timer: Setting 2 % or 50 mswhichever is greater

Pulse conditioner timer: Setting 2 % or 50 mswhichever is greater

Measurements

AccuracyPhase current: 1.0 % of readingPhase local current: 1.0 % of reading

or (f-fn)/fn %Phase remote current: 1.0 % of reading

or (f-fn)/fn %Phase differential current: 5.0 %Bias current: 5.0 %Frequency: 1 %

Disturbance records

AccuracyWaveshape : Comparable with applied

quantities

Magnitude and relative phases: 5 % ofapplied quantities

Duration: 2 %

Trigger position: 2 %(minimum trigger 100 ms)

Reference conditionsAmbient temperature: 20 C

Frequency Tracking Range45 to 65 Hz

Breaker failureAccuracyReset time = 25 ms from:

start to [(TBF2 or TBF4) - 30ms]Reset time = 15 ms from:

[(TBF2 or TBF4) - 30ms] to [TBF2 or

TBF4]2 % or 10 ms whichever is greater

Thresholds: settings 5 %Step 5 ms

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Settings, Measurements andRecords List

Settings List

Global Settings (System Data):Language: English/French/German/SpanishFrequency: 50/60 Hz

Common conventional ratios (CU)Primary basis current (virtual)Ibp: 1000A

Current transformers (PU)Phase CT Primary: 1...30.000 APhase CT Secondary In: 1 A or 5 A

Phase Fault elements (CU)

Phase current slope adjustmentk2: 0.20...0.90

Phase differential current thresholdID>2: 50 A... 30 kA

Check Zone slope adjustment kCZ: 0.00...0.90

Check Zone differential current thresholdIDCZ >2: 50 A... 30 kA

Circuitry fault slope adjustmentID>1: 10...500 A

Circuitry fault thresholdk1: 0.00...0.50

Circuitry fault alarm timer

ID>1 tCF: 0.1... 600.0 s

Sensitive earth faultOption for high neutral impedance:

Disabled/EnabledThreshold for sensitive Earth fault with flowing

current control:IbiasPh>Cur.: 50 A... 30 kA

Residual current slope adjustmentkN2: 0.00...0.90

Residual differential current threshold:IDN>2: 10 A... 30 kA

Residual Check Zone current slope adjustment

kNCZ: 0.00...0.90Residual Check Zone differential current

threshold:IDNCZ>2: 10 A... 30 kA

Circuitry fault slope adjustmentkN1: 0.00...0.50

Circuitry fault threshold:IDN>1: 10...500 A

Circuitry fault alarm timerIDN>1 tCF: 0.1... 600.0 s

Current transformer and feedercharacteristicsClass: 5P (IEC185)

X (BS3958)TPX (IEC 44-6)

TPY (IEC 44-6)TPZ (IEC 44-6)

Min. Knee point voltage (BS 3958):Vk: 20 V - 5 kV

Rated Burden (IEC 44-6): S: 5 200 (step 5)Rated Resistive Burden (IEC 44-6):rRB: data calculated from rated burdenRated short-circuit current factor:

Kscc: 10...50 (step 5)

Secondary resistance (): RCT: 0.1 ... 50.0

External loop resistance Eff. Burden ():

RB: 0.1 ... 200.0 External loop resistance

Eff. Burden VA(Data calculated from Eff. Burden Ohm)

Blocking of 87BB on phase-phase feeder faultfor external ph-ph fault detection - (>1.5 maxph-ph fault current infeed) with Ultra highspeed detection BB: 0.25... 20 xIn

Blocking of 87BB on earth/feeder fault(external earth fault detection) - (>1.5 maxearth fault current infeed. Ultra high speeddetection required BB: 0.25... 30 kA

Supervision of I0 calculation: Kce: 0.01 ... 1.00I0 error alarm time delay: Tce: 0.0 10.0 s

Dead Zone protection (PU)Phase threshold:

I>DZ: 0.05...4.00 xInTime delay: 0.00100.00 sDisabled/EnabledNeutral threshold:

IN>DZ: 0.05...4.00 xInTime delay: 0.00100.00 s

Breaker failure protection (PU)Caution: the following current set values areexpressed in multiple of the local CTs nominalrated current inp (primary) or ins (secondary).

Breaker Failure1ST phase O/C threshold

(dead pole detection for 50BF):I: Disabled/Enabled2nd phase O/C threshold:

I>: 0.05...4.00 xInConfirmation IN>: Disabled/Enabled2nd residual O/C threshold:

IN>: 0.05...4.00 xIn

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Timers for 50BF internal tr ippingCB fail 1 timer:

tBF1: 0.00...10.00 sCB fail 2 timer:

tBF2: 0.00...10.00 s

Timers for 50BF external t ripping(orders f rom 21 or 87Tetc)CB fail 1 timer:

TBF3: 0.00...10.00 sCB fail 2 timer:

TBF4: 0.00...10.00 s

Overcurrent Protection (PU)

Phase Fault Protection (50/51)3 phase Overcurrent Function Status I>1:

0. Disabled1. DT

2. IEC S Inverse3. IEC V Inverse4. IEC E Inverse5. UK LT Inverse6. IEEE M Inverse7. IEEE V Inverse8. IEEE E Inverse9. US Inverse10. US ST Inverse

Current Set if function status 0I>1: 0.10...32.00 xIn

Time delay if function status =1I>1: 0.00...100.00 xIn

TMS if 2function status 5I>1: 0.025...1.200 xIn (step 0.025)

Time dial if function status 6I>1: 0.5...15.0 xIn

Reset Char. if function status6I>1:

0. DT1. Inverse

tReset if 2function status 5 OR if Reset

Char. =1 AND function status 6I>1: 0.0...100.0 xIn3 phase Overcurrent threshold function status

I>2:0. Disabled1. Blocking 87BB2. High set I>23. Both

Current SetI>2: 0.10... 32.00 xIn

Time Delay if function status =1I>2: 0.00...100.00 s

Earth Fault Protection (50N/51N)Residual Overcurrent Function Status IN>1:Disabled

11. DT12. IEC S Inverse

13. IEC V Inverse14. IEC E Inverse15. UK LT Inverse16. IEEE M Inverse17. IEEE V Inverse18. IEEE E Inverse19. US Inverse20. US ST Inverse

Current Set if function status 0IN >1: 0.10...32.00 xIn

Time delay if function status =1IN >1: 0.00...100.00 xIn

TMS if 2function status 5

IN >1: 0.025...1.200 xIn (step 0.025)Time dial if function status 6

IN >1: 0.5...15.0 xIn

Reset Char. if function status 6IN >1:

2. DT3. Inverse

tReset if 2function status 5 OR if Reset

Char. =1 AND function status 6IN >1: 0.0...100.0

Residual Overcurrent threshold function statusIN >2:

4. Disabled

5. Blocking 87BB6. High set I>27. Both

Current SetIN >2: 0.10...32.00 xIn

Time Delay if function status =1IN >2: 0.00...100.00 s

CB Control (PU)Prot Trip Pulse: 0.05...2.00 sTrip Latched: Disabled/EnabledRest Trip Latch: Yes/NoCB Control by: Disabled/Enabled

Man Close Pulse: 0.1...5.0 sMan Trip Pulse: 0.1...5.0 sMan Close Delay: 0... 60 s

Date and TimeIRIG-B Sync: Disabled/EnabledBattery Alarm: Disabled/Enabled

ConfigurationSetting Group:

Select via MenuSelect via Opto

Active Settings: Group 1/2/3/4

Setting Group 1: Disabled/EnabledSetting Group 2: Disabled/EnabledSetting Group 3: Disabled/EnabledSetting Group 4: Disabled/Enabled

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CU OnlyDiff Busbar Prot: Disabled/Enabled

PU OnlyDead Zone Prot: Disabled/EnabledCB Fail & I>: Disabled/EnabledBB Trip Confirm: Disabled/EnabledOvercurrent Prot: Disabled/EnabledEarth Fault Prot: Disabled/Enabled

CU & PUSetting Values: Primary/SecondaryLCD Contrast: (Factory pre-set)

Fault RecorderRecords for the last 5 faults

Central Unit:Active Setting group

Faulty phaseProtection started/operated (87BB, 50BF,

Dead Zone)Fault occurrence time and durationCheck Zone values (Diff. & Bias for A, B, C, N)Faulty zone(s)Topology prior the fault occurrence

Peripheral Unit:Active setting groupIndication of the tripped phasesProtection started/operated (87BB, 50BF,

Dead Zone)

Relay Trip Time and durationRelay Trip TimeFaulty phase currents (A, B, C, N)

Event RecorderRecords for the last 512 events

Oscillography(Disturbance Recorder)

Central Unit:Duration: Fixed value 1.2 sTrigger Position: 0.000 ...50.000s (step 0.200)Analogue Channel 1: (up to 8):Digital Input 1: (up to 32):

Peripheral Unit:Duration: Settable from 0.1 to 10.5 sTrigger Position: 0.000 ...50.000s (step 0.200)Trigger Mode: Single/ExtendedAnalogue Channel 1: (up to 8):Digital Input 1: (up to 32):Selected binary channel assignment from any

DDB status point within the relay (opto input,output contact, alarms, starts, trips, controls,logic).

Sampling frequency: 600Hz

CommunicationsRP1 Protocol: CourierRP1 Address (courier) 634Inactivity Timer: 130 minutesRP1 Port Config: (Courier):

K Bus / EIA485 (RS485)RP1 Comms Mode (EIA485 (RS485)):

IEC60870 FT1.2 FrameIEC60870 10-Bit FrameRP1 Baud Rate(EIA485 (RS485)):9600/19200/38400 bits/s

COMMISSION TESTSMonitor Bit 1(up to 8)::

Binary function link strings, selecting whichDDB signals have their status visible in theCommissioning menu, for test purposes

Test Mode: (CU)Enabled or Disabled87BB trip blocked but 50BF (back trip) enable

per zone87BB and 50BF trip blocked per zoneAll the protections (87BB, Dead Zone, General

50BF, Local 50BF, O/C) disabled87BB disablebut 50BF (back trip) enable for

all zones

Test Mode: (PU)Enabled or Disabled50BF BlockedOverhaulTest Pattern:Configuration of which output contacts are to

be energised when the contact test isapplied.

Static Test Mode: Disabled/EnabledOpto input voltage range:

24-27 V30-34 V48-54 V110-125 V220-250 V

Custom Opto Input 1(up to # = max. opto no. fitted)

Custom options allow independent thresholdsto be set per opto, from the same range asabove

Filter Control:

Opto Input LabelsOpto Input 1 up to: 8 for P741

16 for P74224 for P743

User defined text string to describe thefunction of the particular opto input.

Outputs LabelsRelay 1 up to: 8 for P741 & P742

16 for P743User defined text string to describe the

function of the particular relay output contact.

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Getting Started P740/EN GS/G54

MiCOM P740

GS

GETTING STARTED

Date: 2006

Hardware Suffix: J or K



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P740/EN GS/G54 Getting Started

MiCOM P740

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MiCOM P740 (GS) 3-1

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CONTENTS

1. GETTING STARTED 3

1.1

User interfaces and menu structure 3

1.2 Introduction to the relay 3

1.2.1 Front panel 3

1.2.2 Relay rear panel 9

1.3 Relay connection and power-up 11

1.4 Introduction to the user interfaces and settings options 12

1.5

Menu structu re 13

1.5.1 Protection settings 13

1.5.2 Disturbance recorder settings 13

1.5.3 Control and support settings 14

1.6 Password protection 14

1.7 Relay configuration 15

1.8 Front panel user interface (keypad and LCD) 15

1.8.1 Default display and menu time-out 16

1.8.2 Menu navigation and setting browsing 16

1.8.3 Hotkey menu navigation 16

1.8.4 Password entry 18

1.8.5 Reading and clearing of alarm messages and fault records 18

1.8.6 Setting changes 19

1.9

Front communication port user interface 19

1.9.1 Front courier port 21

1.10 MiCOM S1 relay communications basics 21

1.10.1 PC requirements 21

1.10.2 Connecting to the P740 relay using MiCOM S1 22

1.10.3 Open communication link with relay 24

1.10.4

Off-line use of MiCOM S1 26

Appendix Relay Menu Map (Default ) 23

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FIGURES

FIGURE 1: RELAY FRONT VIEW (EXAMPLE FOR MiCOM P742 40 TE) 3

FIGURE 2: RELAY FRONT VIEW (EXAMPLE FOR MiCOM P743 60 TE) 4

FIGURE 3: P742 RELAY REAR VIEW 40TE 9



FIGURE 6: MENU STRUCTURE 13

FIGURE 7: FRONT PANEL USER INTERFACE 15

FIGURE 8: HOTKEY MENU NAVIGATION 17

FIGURE 9: FRONT PORT CONNECTION 19

FIGURE 10: PC RELAY SIGNAL CONNECTION 20

FIGURE 11: COMMUNICATION SET-UP SCREEN 24

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MiCOM P740 (GS) 3-3

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1. GETTING STARTED

1.1 User interfaces and menu structu re

The settings and functions of the MiCOM protection relay can be accessed both from thefront panel keypad and LCD, and via the front and rear communication ports. Information oneach of these methods is given in this section to describe how to start using the relay.

1.2 Introduct ion to the relay

1.2.1 Front panel

The front panel of the relay is shown in Figure 1a (P742) or 1b (P741 or P743), with thehinged covers at the top and bottom of the relay shown open. Extra physical protection forthe front panel can be provided by an optional transparent front cover. With the cover inplace read only access to the user interface is possible. Removal of the cover does notcompromise the environmental withstand capability of the product, but allows access to therelay settings. When full access to the relay keypad is required, for editing the settings, the

transparent cover can be unclipped and removed when the top and bottom covers are open.If the lower cover is secured with a wire seal, this will need to be removed. Using the sideflanges of the transparent cover, pull the bottom edge away from the relay front panel until itis clear of the seal tab. The cover can then be moved vertically down to release the twofixing lugs from their recesses in the front panel.

User programable

function LEDs

TRIP

ALARM

OUT OF SERVICE

HEALTHY

= CLEAR

= R E AD

= ENTER

SER No

D IAG No

Z n

Vx

Vn

V

V

1/5 A 50/60 Hz

SK 1 SK 2

Serial N and *, V RatingsI Top cover

Fixed

function

LEDs

Bottom

coverBattery compartment Front comms port Download/monitor port

Keypad

LCD

P0103ENb

FIGURE 1: RELAY FRONT VIEW (EXAMPLE FOR MiCOM P742 40 TE)

The front panel of the relay includes the following, as indicated in Figure 1a:

a 16-character by 3-line alphanumeric liquid crystal display (LCD).

a 9-key keypad comprising 4 arrow keys ( ,,and), an enter key (), aclear key (), a read key () and 2 hot keys ().

12 LEDs; 4 fixed function LEDs on the left hand side of the front panel and 8programmable function LEDs on the right hand side.

Under the top hinged cover:

the relay serial number, and the relays current and voltage rating information*.

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Under the bottom hinged cover:

battery compartment to hold the 1/2 AA size battery which is used for memory

back-up for the real time clock, event, fault and disturbance records.

a 9-pin female D-type front port for communication with a PC locally to the relay (up to15m distance) via an RS232 serial data connection.

a 25-pin female D-type port providing internal signal monitoring and high speed localdownloading of software and language text via a parallel data connection.

FIGURE 2: RELAY FRONT VIEW (EXAMPLE FOR MiCOM P743 60 TE)

The front panel of the relay includes the following, as indicated in Figure 1:

a 16-character by 3-line alphanumeric liquid crystal display (LCD)

a 19-key keypad comprising 4 arrow keys (, , and ), an enter key(), a clear key (), a read key (), 2 hot keys () and 10 ()programmable function keys

Function key functionality:

The relay front panel features control pushbutton switches with programmableLEDs that facilitate local control. Factory default settings associate specificrelay functions with these 10 direct-action pushbuttons and LEDs e.g. resetindications. Using programmable scheme logic, the user can readily change

the default direct-action pushbutton functions and LED indications to fit specificcontrol and operational needs.

Hotkey functionality:When the functionality is disabled:

SCROLL

Starts scrolling through the various default displays.

STOP

Stops scrolling the default display.

When the functionality is disabled:

For control of setting groups, control inputs and circuit breaker operation

22 LEDs; 4 fixed function LEDs, 8 tri-colour programmable function LEDs on the lefthand side of the front panel and 10 tri-colour programmable function LEDs on the righthand side associated with the function keys

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Under the top hinged cover:

The relay serial number, and the relays current and voltage rating information

Under the bottom hinged cover:

Battery compartment to hold the 1/2 AA size battery which is used for memory

back-up for the real time clock, event, fault and disturbance records

A 9-pin female D-type front port for communication with a PC locally to the relay(up to 15m distance) via an EIA(RS)232 serial data connection

A 25-pin female D-type port providing internal signal monitoring and high speedlocal downloading of software and language text via a parallel data connection

1.2.1.1 LED indications

Fixed Function

The 4 fixed function LEDs on the left-hand side of the front panel are used to indicate thefollowing conditions:

Trip (Red) indicates that the relay has issued a trip signal. It is reset when the associatedfault record is cleared from the front display.

Alarm (Yellow) flashes to indicate that the relay has registered an alarm. This may betriggered by a fault, event or maintenance record. The LED will flash until the alarms havebeen accepted (read), after which the LED will change to constant illumination, and willextinguish, when the alarms have been cleared.

Out of service (Yellow) indicates that the relays protection is unavailable or a test mode isselected.

Healthy (Green) indicates that the relay is in correct working order, and should be on at alltimes. It will be extinguished if the relays self-test facilities indicate that there is an error with

the relays hardware or software. The state of the healthy LED is reflected by the watchdogcontact at the back of the relay.

To improve the visibility of the settings via the front panel, the LCD contrast can be adjustedusing the LCD Contrast setting in the CONFIGURATION column. This should only benecessary in very hot or cold ambient temperatures.

Programmable LEDs

All the programmable LEDs are tri-colour and can be programmed to indicate RED,YELLOW or GREEN depending on the requirements. The 8 programmable LEDs on the leftare suitable for programming alarm indications and the default indications and functions areindicated in the table below. The 10 programmable LEDs physically associated with thefunction keys, are used to indicate the status of the associated pushbuttons function and thedefault indications are shown below:

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The default mappings for each of the programmable LEDs are as shown in the followingtable:

Central Unit P741:

LED

Number

LED Input Connection/Text Latched P740 LED Function Indication

1

LED1 Red

LED1 Yellow

LED1 Green

Yes

87BB fault on phase A

Not used

Not used

2

LED2 Red

LED2 Yellow

LED2 Green

Yes

87BB fault on phase B

Not used

Not used

3

LED3 Red

LED3 Yellow

LED3 Green

Yes

87BB fault on phase C

Not used

Not used

4

LED4 Red

LED4 Yellow

LED4 Green

Yes

50BF Trip Zone 1

87BB & 50BF Trip Zone 1

87BB Trip Zone 1

5

LED5 Red

LED5 Yellow

LED5 Green

Yes

50BF Trip Zone 2

87BB & 50BF Trip Zone 2

87BB Trip Zone 2

6

LED6 Red

LED6 Yellow

LED6 Green

No

Zone 1 blocked by itself

Zone 1 blocked by Check Zone

Zone 1 protected

7

LED7 Red

LED7 Yellow

LED7 Green

No

Zone 2 blocked by itself

Zone 2 blocked by Check Zone

Zone 2 protected

8

LED8 Red

LED8 Yellow

LED8 Green

No

Fiber communication Error

Fiber communication to change

Fiber communication healthy

9

FnKey LED1 Red

FnKey LED1 Yellow

FnKey LED1 Green

No

Zone or CZ circuitry fault block.

Zone or CZ circuitry fault alarm

No Zone or CZ circuitry fault

10

FnKey LED2 Red

FnKey LED2 Yellow

FnKey LED2 Green

No

Zone or CZ PU error fault block.

Zone or CZ PU error fault alarm

No Zone or CZ PU error fault

11

FnKey LED3 Red

FnKey LED3 Yellow

FnKey LED3 Green

No

All protections Disabled

Not used

All protections Not Disabled

12

FnKey LED4 Red

FnKey LED4 Yellow

FnKey LED4 Green

No

Zone 1: 87BB & 50BF blocked

Zone 1: 50BF blocked

Zone 1: protected

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LEDNumber


13

FnKey LED5 Red

FnKey LED5 Yellow

FnKey LED5 Green

No

Zone 2: 87BB & 50BF blocked

Zone 2: 50BF blocked

Zone 2: protected

14

FnKey LED6 Red

FnKey LED6 Yellow

FnKey LED6 Green

No

Not used

Not used

Reset CU Indications

15

FnKey LED7 Red

FnKey LED7 Yellow

FnKey LED7 Green

No

Not used

Not used

Reset CU & PU Indications

16

FnKey LED8 Red

FnKey LED8 Yellow

FnKey LED8 Green

No

Not used

Not used

Reset PU Trip Latch

17

FnKey LED9 Red

FnKey LED9 Yellow

FnKey LED9 Green

No

Not used

Not used

Manual DR trigger

18

FnKey LED10 Red

FnKey LED10 Yellow

FnKey LED10 Green

No

Not used

Dead Zone fault

Not used

Peripheral Unit P742:

LEDNumber


1 LED 1 Red No Isolator 1 Closed



4 LED 4 Red Yes Trip on CU 50BF backtrip order

5 LED 5 Red Yes Trip on CU 87BB trip order

6 LED 6 Red Yes Dead Zone fault

7 LED 7 Red No Circuit Breaker out of service

8 LED 8 Red No Fiber communication Error

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Peripheral Unit P743:

LEDNumber


1

LED1 Red

LED1 Yellow

LED1 Green

No

Isolator 1 Closed

Isolator 1 Status Alarm

Isolator 1 Open

2

LED2 Red

LED2 Yellow

LED2 Green

No

Isolator 2 Closed


Isolator 2 Open

3

LED3 Red

LED3 Yellow

LED3 Green

No

Isolator 3 Closed


Isolator 3 Open

4

LED4 Red

LED4 Yellow

LED4 Green

Yes

Trip on CU 50BF backtrip order

Not used

Not used

5

LED5 Red

LED5 Yellow

LED5 Green

Yes

Trip on CU 87BB trip order

Not used

Not used

6

LED6 Red

LED6 Yellow

LED6 Green

Yes

Dead Zone fault

Not used

Not used

7

LED7 Red

LED7 Yellow

LED7 Green

No

Circuit Breaker out of service

Not used

Circuit Breaker healthy

8

LED8 Red

LED8 Yellow

LED8 Green

No

Fiber communication Error

Fiber communication to change

Fiber communication healthy

9

FnKey LED1 Red

FnKey LED1 Yellow

FnKey LED1 Green

No

Not used

Not used

Reset PU Indications

10

FnKey LED2 Red

FnKey LED2 Yellow

FnKey LED2 Green

No

Not used

Not used

Reset PU Trip Latch

11

FnKey LED3 Red

FnKey LED3 Yellow

FnKey LED3 Green

No Not used

12

FnKey LED4 Red

FnKey LED4 Yellow

FnKey LED4 Green

No

Not used

Mode 50BF disabled

Mode normal

13

FnKey LED5 Red

FnKey LED5 Yellow

FnKey LED5 Green

No

Mode overhaul

Not used

Mode normal

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LEDNumber


14

FnKey LED6 Red

FnKey LED6 Yellow

FnKey LED6 Green

No Not used

15

FnKey LED7 Red

FnKey LED7 Yellow

FnKey LED7 Green

No Not used

16

FnKey LED8 Red

FnKey LED8 Yellow

FnKey LED8 Green

No Not used

17

FnKey LED9 Red

FnKey LED9 Yellow

FnKey LED9 Green

No Not used

18

FnKey LED10 Red

FnKey LED10 Yellow

FnKey LED10 Green

No Not used

1.2.2 Relay rear panel

The rear panel of the relay is shown in Figures 2/3/4. All current signals, digital logic inputsignals and output contacts are connected at the rear of the relay. Also connected at the rearis the twisted pair wiring for the rear RS485 communication port; the IRIG-B timesynchronising input is optional in the P741.

COPROCESSOR BOARD(Connexion to CU via optical fibre)

COPROCESSORBOARD

Connexionto CUvia optical fibre

POWER SUPPLY OWER SUPPLY

ANALOG INPUT MODULENALOGINPUTMODULE

16 LOGICAL INPUTS6 LOGICAL INPUTS

8 LOGICAL OUTPUTS LOGIC L OUTPUTS

16 17 248

13 14

1 11

7 8

23

22

15

12

21

4 5

1 2

A

2

19

6

3

B C D

2

E

F

18

17

15

12

13

11

16

14

9

7

5

1

8

3

1

6

4

P3710ENa

18

17

15

12

13

11

16

14

9

7

5

1

8

3

1

6

4

18

17

15

12

13

11

16

14

9

7

5

1

8

3

1

6

4

18

17

15

12

13

11

16

14

9

7

5

1

8

3

1

6

4

2 2

FIGURE 3: P742 RELAY REAR VIEW 40TE

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16 17 18 24

13 14

1 11

7 8

15 23

12 22

9 21

A

4 5

1

6 2

3 19

B C D E F G

POWER SUPPLYANALOG INPUT

24 LOGICAL INPUTS 16 LOGICAL OUTPUTS

J

P3711ENb

COPROCESSOR BOARD

(connexion to CU via optic fibre)

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

8

7

5

3

6

4

2

9

7

5

8

3

6

4

2

CH1

TX

RX

TX

CH2 RX

H

TX

ACTIVITY

LINK

RX

SK6

00

.02

.84

.9F

.FF

.90

OPTIONAL BOARD


1 TO 7 COMMUNICATION BOARDS

OPTIONAL BOARD

CO-PROCESSOR BOARD

POWER SUPPLY MODULE

P3712ENc

LOGICAL OUTPUT CONTACT BOARD

LOGICAL INPUT CONTACT BOARD

A GC D E F H

J K

TX

RX

SK6K6

LINK

ACTIVITYCTIVITY

F

F

R

2 148 98

xWorks

IRIG B12x

WindRiver

R

RXXH1

RXXH2

TX

L

TX

M N

15

13

17

16

18

12

14

5

7

9

11

8

1

6

4

1

3

2

15

13

17

16

18

12

14

5

7

9

11

8

1

6

4

1

3

2

15

13

17

16

18

12

14

5

7

9

11

8

1

6

4

1

3

2


Refer to the wiring diagram in Installation Chapter (P740/EN IN) for complete connectiondetails.

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1.3 Relay connection and power-up

Before powering-up the relay, confirm that the relay power supply voltage and nominal acsignal magnitudes are appropriate for your application. The relay serial number, and therelays current and voltage rating, power rating information can be viewed under the tophinged cover. The relay is available in the following auxiliary voltage versions and these are

specified in the table below:

Nominal RangesOperative dc

RangeOperative ac

Range

24 - 48V dc 19 to 65V -

48 - 110V dc (30 - 100V ac rms) ** 37 to 150V 24 to 110V

110 - 250V dc (100 - 240V ac rms) ** 87 to 300V 80 to 265V

** rated for ac or dc operation

Please note that the label does not specify the logic input ratings. The P740 relays are fittedwith universal opto isolated logic inputs that can be programmed for the nominal batteryvoltage of the circuit of which they are a part. See Universal Opto input in the Firmwaresection for more information on logic input specifications. Please note that the opto inputshave a maximum input voltage rating of 300V dc at any setting.

Once the ratings have been verified for the application, connect external power capable ofdelivering the power requirements specified on the label to perform the relay familiarizationprocedures. Figure 2 and 3 indicates the location of the power supply terminals but pleaserefer to the wiring diagrams in the Installation section for complete installation detailsensuring that the correct polarities are observed in the case of dc supply.

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1.4 Introduction to the user interfaces and settings options

The relay has three user interfaces:

The front panel user interface via the LCD and keypad

The front port which supports Courier communication The rear port which supports one protocol: Courier. (IEC 60870-5-103 is converted

from Courier using a KITZ274).

The measurement information and relay settings that can be accessed from the threeinterfaces are summarized in Table 1.

Keypad/LCD

CourierIEC870-5-

103

Display & modification ofall settings

Digital I/O signal status

Display/extraction ofmeasurements

Display/extraction of faultrecords

Extraction of disturbancerecords

Programmable schemelogic settings

Reset of fault & alarmrecords

Clear event & faultrecords

Time synchronization

Control commands

Table 1

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1.5 Menu structu re

The relays menu is arranged in a tabular structure. Each setting in the menu is referred toas a cell, and each cell in the menu may be accessed by reference to a row and columnaddress. The settings are arranged so that each column contains related settings, forexample all of the disturbance recorder settings are contained within the same column. As

shown in Figure 4, the top row of each column contains the heading that describes thesettings contained within that column. Movement between the columns of the menu canonly be made at the column heading level. A complete list of all of the menu settings isgiven in the Menu Content Map at the end of this section.

Column

data

settings

Column header

Control & support Group 1 Group 4

Up to 4 protection setting groups

System data View records DIFF

BUSBAR PROT

BUSBAR

OPTION

P0106ENb

INPUTS

LABELS

OUTPUT

LABELS

DIFF

BUSBAR PROT

BUSBAR

OPTION

INPUTS

LABELS

OUTPUT

LABELS

FIGURE 6: MENU STRUCTURE

All of the settings in the menu fall into one of three categories; protection settings,disturbance recorder settings, or control and support (C&S) settings. One of two differentmethods is used to change a setting depending on which category the setting falls into.Control and support settings are stored and used by the relay immediately after they areentered. For either protection settings or disturbance recorder settings, the relay stores thenew setting values in a temporary scratchpad. It activates all the new settings together, butonly after it has been confirmed that the new settings are to be adopted. This technique isemployed to provide extra security, and so that several setting changes that are made withina group of protection settings will all take effect at the same time.

1.5.1 Protection settings

The protection settings include the following items:

Protection element settings

Scheme logic settings

There are four groups of protection settings, with each group containing the same settingcells. One group of protection settings is selected as the active group, and is used by theprotection elements.

1.5.2 Disturbance recorder settings

The disturbance recorder settings include the record duration and trigger position, selectionof analogue and digital signals to record, and the signal sources that trigger the recording.

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1.5.3 Control and support settings

The control and support settings include:

Relay configuration settings

Open/close circuit breaker CT & VT ratio settings

Reset LEDs

Active protection setting group

Password & language settings

Communications settings

Measurement settings

Event & fault record settings

User interface settings

Commissioning settings

1.6 Password protection

The menu structure contains three levels of access. The level of access that is enableddetermines which of the relays settings can be changed and is controlled by entry of twodifferent passwords. The levels of access are summarized in Table 2.

Access level Operations enabled

Level 0

No password required

Read access to all settings, alarms, event

records and fault records

Level 1Password 1 or 2 required

As level 0 plus:Control commands, e.g.Circuit breaker open/close (when available).

Reset of fault and alarm conditions.Reset LEDs.Clearing of event and fault records.

Level 2Password 2 required

As level 1 plus:All other settings

Table 2

Each of the two passwords is 4 characters of upper case text. The factory default for bothpasswords is AAAA. Each password is user-changeable once it has been correctly entered.Entry of the password is achieved either by a prompt when a setting change is attempted, orby moving to the Password cell in the System data column of the menu. The level ofaccess is independently enabled for each interface, that is to say if level 2 access is enabledfor the rear communication port, the front panel access will remain at level 0 unless therelevant password is entered at the front panel. The access level enabled by the passwordentry will time-out independently for each interface after a period of inactivity and revert tothe default level. If the passwords are lost an emergency password can be supplied -contact AREVA T&D with the relays serial number. The current level of access enabled foran interface can be determined by examining the 'Access level' cell in the 'System data'column, the access level for the front panel User Interface (UI), can also be found as one of

the default display options.

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The relay is supplied with a default access level of 2, such that no password is required tochange any of the relay settings. It is also possible to set the default menu access level toeither level 0 or level 1, preventing write access to the relay settings without the correctpassword. The default menu access level is set in the Password control cell which is foundin the System data column of the menu (note that this setting can only be changed whenlevel 2 access is enabled).

1.7 Relay conf iguration

The relay is a multi-function device that supports numerous different protection, control andcommunication features. In order to simplify the setting of the relay, there is a configurationsettings column which can be used to enable or disable many of the functions of the relay.The settings associated with any function that is disabled are made invisible, i.e. they are notshown in the menu. To disable a function change the relevant cell in the Configurationcolumn from Enabled to Disabled.

The configuration column controls which of the four protection settings groups is selected asactive through the Active settings cell. A protection setting group can also be disabled inthe configuration column, provided it is not the present active group. Similarly, a disabled

setting group cannot be set as the active group.

1.8 Front panel user interface (keypad and LCD)

When the keypad is exposed it provides full access to the menu options of the relay, with theinformation displayed on the LCD.

The , ,andkeys which are used for menu navigation and setting value changesinclude an auto-repeat function that comes into operation if any of these keys are heldcontinually pressed. This can be used to speed up both setting value changes and menunavigation; the longer the key is held depressed, the faster the rate of change or movementbecomes.

FIGURE 7: FRONT PANEL USER INTERFACE

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1.8.1 Default display and menu time-out

The front panel menu has a default display, the contents of which can be selected from

P740 en M G54 Global

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