r8141a mvaj05

Service ManualTypes MVAJ05, 10, 20

Tripping and Control Relays

MVAJ 051, 053, 054, 055MVAJ 101, 102, 103, 104, 105MVAJ 201, 202, 203, 204, 204

HANDLING OF ELECTRONIC EQUIPMENT

A person's normal movements can easily generate electrostatic potentials of several thousand volts.Discharge of these voltages into semiconductor devices when handling electronic circuits can causeserious damage, which often may not be immediately apparent but the reliability of the circuit will havebeen reduced.

The electronic circuits of ALSTOM T&D Protection & Control Limited products are immune to the relevantlevels of electrostatic discharge when housed in the case. Do not expose them to the risk of damage bywithdrawing modules unnecessarily.

Each module incorporates the highest practicable protection for its semiconductor devices. However, if itbecomes necessary to withdraw a module, the following precautions should be taken to preserve the highreliability and long life for which the equipment has been designed and manufactured.

1. Before removing a module, ensure that you are at the same electrostatic potential as the equipmentby touching the case.

2. Handle the module by its front-plate, frame, or edges of the printed circuit board.Avoid touching the electronic components, printed circuit track or connectors.

3. Do not pass the module to any person without first ensuring that you are both at the sameelectrostatic potential. Shaking hands achieves equipotential.

4. Place the module on an antistatic surface, or on a conducting surface which is at the samepotential as yourself.

5. Store or transport the module in a conductive bag.

More information on safe working procedures for all electronic equipment can be found in BS5783 andIEC 147-0F.

If you are making measurements on the internal electronic circuitry of an equipment in service, it ispreferable that you are earthed to the case with a conductive wrist strap.Wrist straps should have a resistance to ground between 500k – 10M ohms. If a wrist strap is notavailable, you should maintain regular contact with the case to prevent the build up of static.Instrumentation which may be used for making measurements should be earthed to the case wheneverpossible.

ALSTOM T&D Protection & Control Ltd strongly recommends that detailed investigations on the electroniccircuitry, or modification work, should be carried out in a Special Handling Area such as described inBS5783 or IEC 147-0F.

SAFETY SECTION1. INSTALLATION 111.1 General 111.2 Receipt 111.3 Unpacking 111.4 Storage 111.5 Installation 122. COMMISSIONING 122.1 Commissioning preliminaries 122.1.1 Electrostatic discharge (ESD) 122.1.2 Inspection 122.1.3 Wiring 122.1.4 External links 122.2 Preliminary checks 132.3 Insulation tests 142.4 Operate/reset operation 142.4.1 Self, hand, electrical and hand/electrical reset 142.4.2 Self-reset 2.5s delayed reset 152.5 Restoration of wiring 152.6 Problem analysis 153. MAINTENANCE 154. MECHANICAL SETTINGS 154.1 General 154.2 Cleaning contacts 164.3 Contact settings 164.4 Settings 164.4.1 Relay types MVAJ05 164.4.2 Relay types MVAJ10, MVAJ20 175. SPARES 175.1 Repairs 176. CONNECTION DIAGRAMS 187. COMMISSIONING TEST RECORD 33

REPAIR FORM 35

Figure 1 Typical application diagram MVAJ051 19Figure 2 Typical application diagram MVAJ053 20Figure 3 Typical application diagram MVAJ054 21Figure 4 Typical application diagram MVAJ055 22Figure 5 Typical application diagram MVAJ101 23Figure 6 Typical application diagram MVAJ102 24Figure 7 Typical application diagram MVAJ103 25Figure 8 Typical application diagram MVAJ104 26Figure 9 Typical application diagram MVAJ105 27Figure 10 Typical application diagram MVAJ201 28Figure 11 Typical application diagram MVAJ202 29Figure 12 Typical application diagram MVAJ203 30Figure 13 Typical application diagram MVAJ204 31Figure 14 Typical application diagram MVAJ205 32

SAFETY SECTION

This Safety Section should be read before commencing any work on theequipment.

Health and safety

The information in the Safety Section of the product documentation is intended toensure that products are properly installed and handled in order to maintain themin a safe condition. It is assumed that everyone who will be associated with theequipment will be familiar with the contents of the Safety Section.

Explanation of symbols and labels

The meaning of symbols and labels which may be used on the equipment or in theproduct documentation, is given below.

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

Protective/safety *earth terminal

Functional *earth terminal.Note: this symbol may also be used for a protective/safety earth terminal if that terminal is part of aterminal block or sub-assembly eg. power supply.

*Note:The term earth used throughout the product documentation is the directequivalent of the North American term ground.

Installing, Commissioning and ServicingEquipment connections

Personnel undertaking installation, commissioning or servicing work on thisequipment should be aware of the correct working procedures to ensure safety.The product documentation should be consulted before installing, commissioningor servicing the equipment.

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

If there is unlocked access to the rear of the equipment, care should be taken by allpersonnel 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. To ensure that wires are correctly terminated, the correct crimp terminaland tool for the wire size should be used.

Before energising the equipment it must be earthed using the protective earthterminal, or the appropriate termination of the supply plug in the case of plugconnected equipment. Omitting or disconnecting the equipment earth may cause asafety hazard.

The recommended minimum earth wire size is 2.5 mm2, unless otherwise stated inthe technical data section of the product documentation.

Before energising the equipment, the following should be checked:

Voltage rating and polarity;

CT circuit rating and integrity of connections;

Protective fuse rating;

Integrity of earth connection (where applicable)

Equipment operating conditions

The equipment should be operated within the specified electrical andenvironmental limits.

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.

External resistors

Where external resistors are fitted to relays, these may present a risk of electricshock 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.

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

These must not be inserted into or withdrawn from equipment whilst it is energised,since this may result in damage.

Fibre optic communication

Where fibre optic communication devices are fitted, these should not be vieweddirectly. Optical power meters should be used to determine the operation or signallevel of the device.

Older ProductsElectrical adjustments

Pieces of equipment which require direct physical adjustments to their operatingmechanism to change current or voltage settings, should have the electrical powerremoved before making the change, to avoid any risk of electric shock.

Mechanical adjustments

The electrical power to the relay contacts should be removed before checking anymechanical settings, to avoid any risk of electric shock.

Draw out case relays

Removal of the cover on equipment incorporating electromechanical operatingelements, may expose hazardous live parts such as relay contacts.

Insertion and withdrawal of extender cards

When using an extender card, this should not be inserted or withdrawn from theequipment whilst it is energised. This is to avoid possible shock or damagehazards. Hazardous live voltages may be accessible on the extender card.

Insertion and withdrawal of heavy current test plugs

When using a heavy current test plug, CT shorting links must be in place beforeinsertion or removal, to avoid potentially lethal voltages.

Decommissioning and Disposal

Decommissioning: The auxiliary supply circuit in the relay may includecapacitors across the supply or to earth. To avoid electricshock or energy hazards, after completely isolating thesupplies to the relay (both poles of any dc supply), thecapacitors should be safely discharged via the externalterminals prior to decommissioning.

Disposal: It is recommended that incineration and disposal to watercourses is avoided. The product should be disposed of in asafe manner. Any products containing batteries should havethem removed before disposal, taking precautions to avoidshort circuits. Particular regulations within the country ofoperation, may apply to the disposal of lithium batteries.

Technical SpecificationsProtective fuse rating

The recommended maximum rating of the external protective fuse for thisequipment is 16A, Red Spot type or equivalent, unless otherwise stated in thetechnical data section of the product documentation.

Insulation class: IEC 601010-1: 1990/A2: 1995 This equipment requires aClass I protective (safety) earthEN 61010-1: 1993/A2: 1995 connection to ensure userClass I safety.

Installation IEC 601010-1: 1990/A2: 1995 Distribution level, fixedCategory Category III installation. Equipment in(Overvoltage): EN 61010-1: 1993/A2: 1995 this category is qualification

Category III tested at 5kV peak,1.2/50µs, 500Ω, 0.5J,between all supply circuitsand earth and also betweenindependent circuits.

Environment: IEC 601010-1: 1990/A2: 1995 Compliance is demonstratedPollution degree 2 by reference to generic safetyEN 61010-1: 1993/A2: 1995 standards.Pollution degree 2

Product safety: 73/23/EEC Compliance with theEuropean Commission LowVoltage Directive.

EN 61010-1: 1993/A2: 1995 Compliance is demonstratedEN 60950: 1992/A11: 1997 by reference to generic safety

standards.

Section 1. INSTALLATION

1.1 General

Protective relays, although generally of robust construction, require carefultreatment prior to installation and a wise selection of site. By observing a fewsimple rules the possibility of premature failure is eliminated and a high degree ofperformance can be expected.

The safety section should be read before any work takes place and should bereferred to throughout. Special care should be taken to adhere to suitable electro-static discharge precautions.

1.2 Receipt

The relays are either despatched individually or as part of a panel/rack mountedassembly in cartons specifically designed to protect them from damage.

Relays should be examined immediately they are received to ensure that nodamage has been sustained in transit. If damage due to rough handling is evident,a claim should be made to the transport company concerned immediately andALSTOM Protection & Control Ltd should be promptly notified. Relays which aresupplied unmounted and not intended for immediate installation should be returnedto their protective polythene bags.

1.3 Unpacking

Care must be taken when unpacking and installing the relays so that none of theparts are damaged or their settings altered and must only be handled by skilledpersons.

Relays should be examined for any wedges, clamps, or rubber bands necessary tosecure moving parts to prevent damage during transit and these should beremoved after installation and before commissioning.

Relays which have been removed from their cases should not be left in situationswhere they are exposed to dust or damp. This particularly applies to installationswhich are being carried out at the same time as construction work.

1.4 Storage

If relays are not installed immediately upon receipt they should be stored in a placefree from dust and moisture in their original cartons and where de-humidifier bagshave been included in the packing they should be retained. The action of thede-humidifier crystals will be impaired if the bag has been exposed to ambientconditions and may be restored by gently heating the bag for about an hour, priorto replacing it in the carton.

Dust which collects on a carton may, on subsequent unpacking, find its way intothe relay; in damp conditions the carton and packing may become impregnatedwith moisture and the de-humidifying agent will lose its efficiency.

The storage temperature range is –40°C to +70°C.

1.5 Installation

The installation should be clean, dry and reasonably free from dust and excessivevibration. The site should preferably be well illuminated to facilitate inspection.

An outline diagram is normally supplied showing panel cut-outs and hole centres.For individually mounted relays these dimensions will also be found in publicationR6141.

Publication R7012, Parts Catalogue and Assembly Instructions, will be useful whenindividual relays are to be assembled as a composite rack or panel mountedassembly.

Publication R6001 is a leaflet on the modular integrated drawout system ofprotective relays.

Publication R6014 is a list of recommended suppliers for the pre-insulatedconnectors.

Section 2. COMMISSIONING

2.1 Commissioning preliminaries

2.1.1 Electrostatic discharge (ESD)

The relay uses components which are sensitive to electrostatic discharges. Whenhandling the withdrawn module, care should be taken to avoid contact withcomponents and electrical connections. When removed from its case for storagethe module should be placed in an electrically conducting anti-static bag.

2.1.2 Inspection

Carefully examine the module and case to see that no damage has occurredduring transit.

Check that the relay serial number on the module, case and cover are identical,and also check that the rating information is correct for the system.

2.1.3 Wiring

Warning

Exposed terminals may present a hazardous voltage unlessequipment is electrically isolated.

Check that the external wiring is correct to the relevant relay diagram and/orscheme diagram. It is especially important that DC supplies are wired with thecorrect polarity. The relay external connection diagram number is given on therating label inside the case.

2.1.4 External links

There are two external links as detailed in tables 1 and 2.

All trip relays are supplied as high burden. With the exception of MVAJ102, 202,they may be converted to low burden by removing the link between case terminals22 and 24.

Relay type Feature Link in Link out

MVAJ 051, 053, 054, 055 Burden High Low

Cut-off Instantaneous Instantaneous

MVAJ 101, 103, 104, 105 Burden High Low

201, 203, 204, 205 Cut-off 40-60ms time delayed Instantaneous

MVAJ102, 202 Link not necessary - configured as high burden models

Note: At the point at which the relay cut-off occurs the current drawn by the relayis either reduced to an economised level or is removed entirely (ie. zerowatt cut-off state).

Table 1: Configuration of high/low burden link (terminals 22 to 24)

A second link is supplied fitted to selected 10 and 20 contact relays as detailed inTable 2. This link, connected between case terminals 21 and 23 enables a resetinhibitor feature to be introduced into the circuit of 10 and 20 contact electricalreset relays, ensuring that the reset circuit is disabled when the operate circuit isenergised.

On relay types 104, 105, 204 and 205 this link may be removed if this feature isnot required.

NB. This link must remain fitted to MVAJ101 and 201 relays to enable theeconomising circuit.

Relay type Feature Link in Link out

MVAJ051, 053, 054, 055, Link not available102, 202

MVAJ101, 201 Link fitted (relay cut-off to economised state)

MVAJ103, 203 Link not available (relay cut-off to zero watts)

MVAJ104, 105, 204, 205 Cut-off state economised zero watts

reset inhibitor active disabled

Table 2: Configuration of economising/reset inhibit link (terminals 21 to 23)

2.2 Preliminary checks

Before leaving the factory all relays are accurately adjusted, tested and carefullypacked. There should be no need for any re-adjustment on commissioning.

Moving parts are held in position during transit by rubber bands and packing.These should be removed carefully.

2.2.1 To gain access to the relay first loosen the captive cover screws, then carefullyremove the cover from the case.

The module can then be removed from the case by grasping the handles at the topand bottom of the front plate and pulling forwards.

Care must be taken to ensure that mechanical settings of the element are notdisturbed.

2.2.2 Carefully remove the rubber band securing the flag mechanism.

2.2.3 Check that the bottom end of the contact operating card has not been dislodgedfrom the slot in the armature extension.

2.2.4 Check that all push-on connections to the PCB are secure.

Check that all the push-on connections to the back of the contacts are secure.

Check that all the push-on connections to terminal block are secure.

2.2.5 Carefully actuate the armature of each unit in turn with a small screwdriver/probe.

On units fitted with hand reset flag indicators, check that the flag is free to fallbefore, or just as, any make contacts close.

2.2.6 Check that the serial number in the cover and the relay case match that of themodule. Replace the module in the case and refit the cover. Make sure that thereset mechanism in the cover is correctly located with respect to the relay elementand that the flag (or mechanism) can be reset.

Check that the armature(s) are in the reset position by pressing the appropriatereset buttons.

2.3 Insulation tests

The relay and its associated wiring may be insulation tested between:

– all electrically isolated circuits

– all circuits and earth

An electronic or brushless insulation tester should be used giving a dc voltage notexceeding 1000V. Accessible terminals of the same circuit should first be strappedtogether. Deliberate circuit earthing links removed for the tests must subsequentlybe replaced.

2.4 Operate/reset operation

Warning

Exposed terminals may present a hazardous voltage unlessequipment is electrically isolated.

2.4.1 Self, hand, electrical and hand/electrical reset

The operate circuit is terminated to case terminals 27(+), 28(-). The electrical resetcircuit is terminated to case terminals 25(+), 26(-). Disconnect external wiring fromthese terminals to allow application of the test supply.

With the relay reset check the continuity of the closed contacts (shown as breakcontacts on the drawing).

Check operation of operate circuit and the electrical reset circuit (if applicable) byenergising the relay with 60% of the lower nominal supply voltage.

The relays should switch cleanly with one movement.

Check the operating time of the relay at 100% lower nominal supply voltage andcheck the continuity of the closed contacts (shown as make contacts on thedrawing).

2.4.2 Self-reset 2.5s delayed reset

The operate circuit is terminated to case terminals 25(+), 27(+), 28(-). Disconnectexternal wiring from these terminals to allow application of the test supply.

With the relay reset check the continuity of the closed contacts (shown as breakcontacts on the drawing).

Check operation of operate circuit by energising the relay with 60% of the lowernominal supply voltage.

The relays should switch cleanly with one movement.

Check the operating time of the relay at 100% lower nominal supply voltage andcheck the continuity of the closed contacts (shown as make contacts on thedrawing).

Check the delayed reset time by energising the relay with full rated supply volts tocase terminations 25(+), 27(+), 28(-), then remove energisation from the casetermination 27(+). Time the closure of a normally closed contact from this point intime. The reset time shall be between 2 - 2.8s.

2.5 Restoration of wiring

Restore any external wiring connections that may have been disturbed during theabove tests.

2.6 Problem analysis

Repeat Section 2.2 with particular attention to the connection of external links.

If the relay is found to be faulty it should be returned to ALSTOM Protection &Control Ltd for repair and recalibration. There are no user serviceable parts inside.

Section 3. MAINTENANCE

Periodic maintenance is not necessary, however routine testing should be carriedout the meet the customer requirements.

Check the relay for operation at 60% lower nominal supply voltage and forcontact wear. If required, the mechanical settings may be checked against thoseshown in Section 4.

Section 4. MECHANICAL SETTINGS

4.1 General

Contacts are set at the factory and should not require adjustment.

If contacts show signs of contamination during maintenance it may be necessary toclean contacts and check settings.

Contacts must be checked by qualified personnel only toensure that settings are not disturbed.

The safety section should be read before attempting any adjustments.

4.2 Cleaning contacts

Contacts should be cleaned with the burnishing tool, supplied in relay tool kits.On no account should cleaning fluids, knives, files or abrasive materials be used.

4.3 Contact settings

Armature gap measurements should be made with the top of the feeler gauge levelwith the centre line of the core.

Contact pressures are measured with a gramme gauge at the contact tips.

In general contact gaps and follow through are defined by quoting an armaturegap at which the tips should be just closed or just open. Follow through should bemeasured at the centre of the armature. Some mechanically operated contact gapsmust be measured directly with feeler gauges at the contact tips.

The relay contact state is always defined with the relay in the reset position unlessotherwise specified on the appropriate circuit diagram.

Symbols used on diagrams

Contact type Normal dutyMake (normally open) MBreak (normally closed) B

4.4 Settings

Settings should be within those specified in the following tables.

4.4.1 Relay types MVAJ05

Standard armature gap 1.5 to 1.25 mm

Make Follow through – just closed 0.5 mm– just open 0.6 mm

Force to make 25 to 30 grammes

Break Contact gaps 1.25 to 1.5 mm

Force to break 25 to 30 grammes

Break Cut off contact (top left-hand viewed from front)

Force to break 25 to 30 grammes

Contact gap 0.2 to 0.5 mm(measured at armature)

4.4.2 Relay types MVAJ10, MVAJ20

Standard Following Unitsflag flag

Standard armature gap 1.5 to 1.4 1.5 to 1.25 mm

Make Follow through – just closed 0.5 0.5 mm– just open 0.6 0.6 mm

Force to make 26 to 29 20 to 25 grammes

Force to make 30 to 35 25 to 30 grammes(when less than 4 make)

Break Contact gaps 1.25 to 1.5 1.25 to 1.5 mm

Force to break 26 to 29 20 to 25 grammes

Break Cut off contact (bottom right-hand viewed from front)

Force to break 25 to 30 20 to 25 grammes

Contact gap measured 0.4 to 0.6 0.4 to 0.6 mmat the armature centre

Section 5. SPARES

When ordering spares, quote the full relay model number and any componentreference numbers, or briefly describe the part required.

5.1 Repairs

Should the need arise for the equipment to be returned to ALSTOM T&D Protection& Control Ltd for repair, then the form at the back of this manual should becompleted and sent with the equipment together with a copy of any commissioningtest results.

Section 6. CONNECTION DIAGRAMS

5 contact versions

01 MVAJ051 01 self reset01 MVAJ053 01 hand reset01 MVAJ054 01 electrical reset01 MVAJ055 01 hand and electrical reset

10 contact versions

01 MVAJ101 01 self reset01 MVAJ102 01 self reset (2s delayed reset)01 MVAJ103 01 hand reset01 MVAJ104 01 electrical reset01 MVAJ105 01 hand and electrical reset

20 contact versions

01 MVAJ201 01 self reset01 MVAJ202 01 self reset (2s delayed reset)01 MVAJ203 01 hand reset01 MVAJ204 01 electrical reset01 MVAJ205 01 hand and electrical reset

Where required, any specific diagram may be supplied on request. If the actualdiagram number is not known, please provide the full model number and serialnumber. Typical diagrams follow.

Figure 1: Typical application diagram MVAJ 051

Combination ofoutput contacts

Output contacts tomodule terminals

2827PR

See Note 2

RL15

(OP)

Case earth

Module terminal blockviewed from rear

Notes

CT shorting links makebefore (b) and (c) disconnect

(a)

(b)

(c) long terminals

short terminals break before (c)

1

2 Link in for high burden Link out for low burden

Vx

Viewed from front

13579

11

A2468

1

27

2

9 10

11

3 4

5 6

7 8

12

22

24

26

28

25

Contact descriptionM: MakeB: Break

5M - M M M M M

4M 1B B M M M M

3M 2B B M M B M

2M 3B B B M B M

1 3 5 7 9 11 2 4 6 8

RL1-A

T1

T3

T4

T27

22

24

T2

T22

T24

T28ZJ0401




2827PR

See Note 2

RL15

(OP)

Case earth


Notes


(a)

(b)

(c) long terminals


1


Vx

Viewed from front

13579

11

A2468

1

27

2

9 10

11

3 4

5 6

7 8

12

22

24

26

28

25


1 3 5 7 9 11 2 4 6 8

RL1-A

T1

T3

T4

T27

22

24

T2

T22

T24

T28ZJ0401

5M - M M M M M4M 1B B M M M M3M 2B B M M B M2M 3B B B M B M



long terminals



Notes

1 (a)

(b)

(c)

Case earth


1

27

2

9 10

11

3 4

5 6

7 8

12

22

24

26

28

25

5M - M M M M M

4M 1B B M M M M

3M 2B B M M B M

2M 3B B B M B M



1 3 5 7 9 112 4 6 8


Viewed from front

1357

68 11

9

A24

27

Reset

25

RL15

(OP)

RL1-AT1

T25

T2

T26

ZJ0401

+

26

PR 28

RL1

(Reset)

T27 T28

T5

T6

T4 T24

T3 T22

24

22

SeeNote 2

-Vx



10M - M M M M M M M M M M8M 2B B M M M M B M M M M6M 4B B B M M M B B M M M4M 6B B B B M M B B B M M


Output contacts to module terminals

1 3 5 7 9 11 13 1517 19 10 1214 1618 202 4 6 8


long terminals



Notes

1 (a)

(b)

(c)

3 Link for economising must be fitted.

Case earth


11

13579

131517192123

25

27

2468

10

141618202224

26

28

12

2468101214161820

B

135791113151719

A

Viewed from front

27

RL110

(OP)

RL1-AT1 T2

ZJ0393

+Vx

PR 28T27 T28

T23

T21

T4 T24

T3 T22

23

21

24

22

SeeNote 2

SeeNote 3

-


10M - M M M M M M M M M M8M 2B B M M M M B M M M M6M 4B B B M M M B B M M M4M 6B B B B M M B B B M M




1 3 5 7 9 11 13 1517 19 10 1214 1618 202 4 6 8

2468101214161820

B

135791113151719

A

Viewed from front

27PR

25CT shorting links makebefore (b) and (c) disconnect

long terminals


Notes

1 (a)

(b)

(c)

Case earth


RL110

(OP)

RL1-A

T4

T3

T1

T27

T2

T28

ZJ0394T9

RL1-B

-+Vx

35

46

1

7 8

13 14

17 1819 2021 22

23 24

25 26

27 28

9 1011 12

15 16

28

2

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24

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20

18

16

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M: M

ake

B: Br

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10M

-M

MM

MM

MM

MM

M

8M

2B

BM

MM

MB

MM

MM

6M

4B

BB

MM

MB

BM

MM

4M

6B

BB

BM

MB

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Com

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13

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13

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17

19

68

14

16

24

10

12

18

20

1 3 5 7 911

19

15 17

13 A

2 4 6 810

14

18

20 B

16

12

27

RL1

10

(OP)

RL1-A

T1T2

ZJ0393

+Vx PR

28

T27

T28

T23

T21

T4T2

4

T3T2

2

23

21

24

22

See

Not

e 2

See

Not

e 3

-


10M - M M M M M M M M M M8M 2B B M M M M B M M M M6M 4B B B M M M B B M M M4M 6B B B B M M B B B M M2M 8B B B B B M B B B B M



1 3 5 7 9 11 13 1517 19 10 1214 1618 202 4 6 8


Viewed from front

3 Link to enable reset inhibitor/economising coil.


long terminals



Notes

1 (a)

(b)

(c)

Case earth


11

13579

131517192123

25

27

2468

10

141618202224

26

28

12 SeeNote 3

27

Reset

25

RL110

(OP)

RL1-AT1

T25

T2

T26

ZJ0393

RL1-B

-+Vx

26

PR 28

RL1

(Reset)

T27 T28

T5 T23

T11 T21

T4 T24

T3 T22

23

21

24

22

SeeNote 2

SeeNote 3

2468101214161820

B

135791113151719

A


10M - M M M M M M M M M M8M 2B B M M M M B M M M M6M 4B B B M M M B B M M M4M 6B B B B M M B B B M M2M 8B B B B B M B B B B M




1 3 5 7 9 11 13 1517 19 10 1214 1618 202 4 6 8

2468101214161820

B

135791113151719

A

Viewed from front

27

Reset

25


long terminals


RL110

(OP)

RL1-AT1

T25

T2

T26

ZJ0393

RL1-B

-+Vx

26

Notes

1 (a)

(b)

(c)

Case earth


35

46

1

7 8

13 14

17 1819 2021 22

23 24

25 26

27 28

9 1011 12

15 16

2

2. Link in for high burdenLink out for low burden

3. Link to enable reset inhibitor/economising coil

PR 28

RL1

(Reset)

T27 T28

T5 T23

T11 T21

T4 T24

T3 T22

23

21

24

22

SeeNote 2

SeeNote 3



Left hand Right hand

Combinations ofoutput contacts

Table 1 Table 2

Output contacts to module terminals (See Note 4)

Contact description:M: MakeB: Break

Module terminalsCombination

Contact stacksviewed from front

1 3 5 7

46 48

2468101214161820

B

135791113151719

A

41 4345 47 38 4010 12

29 3133 3537 3918 202 49 1113 1517 19

30 326 8 14 16

34 36 42 44

Cont.stackL/hR/h

L/hstack

R/hstack

20M - 1 1

18M 2B 2 1

16M 4B 2 2

14M 6B 3 2

12M 8B 3 3

10M 10B 4 3

8M 12B 4 4

1 M M M M M M M M M M

2 B M M M M B M M M M

3 B B M M M B B M M M

4 B B B M M B B B M M

30323436384042444648

B

29313335373941434547

A

Case earth



long terminals


Notes

1 (a)

(b)

(c)

3 Link for economising must be fitted.

11

13579

131517192123

25

27

2468

10

141618202224

26

28

12 39

2931333537

41434547

3032343638

42444648

40

4 The numbers quoted for left hand and right handstacks in Table 1 are code numbers used forcross references to module terminals in Table 2.

(OP) (OP)

RL110

RL310

Vx

23

21

24

22

SeeNote 2

SeeNote 3

2827PR

RL1-A

T4/T9

T3/T8

RL3-A

T27

T22

T24

T21

T23

T28

T20T7T2T1

ZJ0393

Figu

re 1

1: T

ypic

al a

pplic

atio

n di

agra

m M

VAJ 2

02

1

MM

MM

MM

MM

MM

2

BM

MM

MB

MM

MM

3

BB

MM

MB

BM

MM

4

BB

BM

MB

BB

MM

Tabl

e 2

Out

put c

onta

cts

to m

odul

e te

rmin

als

Mod

ule

term

inal

sC

ont.

stac

k

Con

tact

des

crip

tion

M:

Mak

eB:

Brea

k

See

Not

e 2

L/h

R/h

13

57

911

13

15

17

19

68

14

16

24

10

12

18

20

29

31

33

353

739

41

43

45

47

34

36

42

44

30

32

38

40

46

48

Tabl

e 1

Com

bina

tions

of

outp

ut c

onta

cts

Com

bina

tion

L/h

stac

kR/

hst

ack

20

M-

11

18

M2

B2

1

16

M4

B2

2

14

M6

B3

2

12

M8

B3

3

10

M1

0B

43

8M

12

B4

4

Con

tact

sta

cks

view

ed fr

om fr

ont

Righ

t han

dLe

ft ha

nd

2 4 6 810

14

18

20 B

16

12

1 3 5 7 9

13

17

19 A

15

11

30

32

34

36

38

42

46

48 B

44

40

29

31

33

35

37

41

45

47 A

43

39

Cas

e ea

rth

Mod

ule

term

inal

blo

ck v

iew

ed fr

om r

ear

Not

es

1. (a

)

(b)

(c)

CT

shor

ting

links

mak

e be

fore

(b) a

nd (c

) dis

conn

ect

Shor

t ter

min

als

brea

k be

fore

(c)

Long

term

inal

s

22

24

26

28

20

18

16

14

12

10864 2

21

23

25

27

19

17

15

13

11

9753 1

50

52

54

56

48

46

44

42

40

38

36

34

32

30

49

51

53

55

47

45

43

41

39

37

35

33

31

29

2.

The

num

bers

quo

ted

for

left

hand

and

rig

ht h

and

stac

ksin

Tab

le 1

are

cod

e nu

mbe

rs u

sed

for

cros

s re

fere

nces

to m

odul

e te

rmin

als

in T

able

2.

(OP)

(OP)

RL1

10

RL3

10

Vx

28

27

PR

RL1

-A

T5/T

1

T3/T

7

RL3

-A

T27

T28T8

T6T2

T4

ZJ0

39

3

25

T9

RL1

-B

Figu

re 1

2: T

ypic

al a

pplic

atio

n di

agra

m M

VAJ 2

03

Tabl

e 1

Tabl

e 2

Com

bina

tions

of

outp

ut c

onta

cts

Out

put c

onta

cts

to m

odul

e te

rmin

als

Mod

ule

term

inal

sC

ont.

stac

kL/

hst

ack

R/h

stac

kC

ombi

natio

n(s

ee N

ote

3)

Left

hand

Con

tact

des

crip

tion

M:

Mak

eB:

Brea

k

Righ

t han

d

1M

MM

MM

MM

MM

M

2B

MM

MM

BM

MM

M

3B

BM

MM

BB

MM

M

4B

BB

MM

BB

BM

M

5B

BB

BM

BB

BB

M

2931

3335

13

57

3739

4143

911

1315

4547

1719

24

3032

3436

3840

68

1012

4244

1416

4648

1820

L/h

R/h

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

30

32

34

36

38

40

42

44

46

48

B

29

31

33

35

37

39

41

43

45

47

A

Con

tact

sta

cks

view

edfrom

fron

t

20M

-1

1

18M

2B

21

16M

4B

22

14M

6B

32

12M

8B

33

10M

10B

43

8M

12B

44

6M

14B

54

4M

16B

55

(OP)

(OP)

RL1

10

RL3

10

Vx

Cas

e ea

rth

Mod

ule

term

inal

blo

ckvi

ewed

from

rea

r

Not

es

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

(a)

(b)

(c)

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

2 L

ink

in fo

r hi

gh b

urde

n L

ink

out f

or lo

w b

urde

n

3D

o no

t fit

link

4 T

he n

umbe

rs q

uote

d fo

r le

ft ha

nd a

nd r

ight

han

d st

acks

in

Tab

le 1

are

cod

enum

bers

use

d fo

r cr

oss

refe

renc

es to

m

odul

e te

rmin

als

in T

able

2.

1

12

34

56

78

910

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

23

21

2422

See

Not

e 2

See

Not

e 3

28

27

PR

RL1

-A

T4/T

9

T3/T

8

RL3

-A

T27

T22

T24

T21

T23

T28

T20

T7T2

T1

ZJ0

39

3

Figu

re 1

3: T

ypic

al a

pplic

atio

n di

agra

m M

VAJ 2

04

Left

hand

Righ

t han

d

Com

bina

tions

of

outp

ut c

onta

cts

Tabl

e 1

(See

Not

e 4

)C

ombi

natio

n

Con

tact

sta

cks

view

ed fr

om fr

ont

L/h

stac

kR/

hst

ack

20

M-

11

18

M2

B2

1

16

M4

B2

2

14

M6

B3

2

12

M8

B3

3

10

M1

0B

43

8M

12

B4

4

6M

14

B5

4

4M

16

B5

5

Tabl

e 2

Out

put c

onta

cts

to m

odul

e te

rmin

als

Mod

ule

term

inal

sC

ont.

stac

k

1M

MM

MM

MM

MM

M

2B

MM

MM

BM

MM

M

3B

BM

MM

BB

MM

M

4B

BB

MM

BB

BM

M

5B

BB

BM

BB

BB

M

46

48

41

43

45

47

38

40

29

313

33

537

39

30

32

34

36

42

44

L/h

18

20

13

57

10

12

24

91

113

151

71

96

81

41

6R/

hC

onta

ct d

escr

iptio

nM

:M

ake

B:Br

eak

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

30

32

34

36

38

40

42

44

46

48

B

29

31

33

35

37

39

41

43

45

47

A

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

2

Link

in fo

r hi

gh b

urde

n

Li

nk o

ut fo

r lo

w b

urde

n

Not

es

1(a

)

(b)

(c)

3

Link

for

econ

omis

ing

mus

t be

fitte

d.

4

The

num

bers

quo

ted

for

left

hand

and

rig

ht h

and

stac

ks in

Tab

le 1

are

cod

e nu

mbe

rs u

sed

for

cros

s re

fere

nces

to m

odul

e te

rmin

als

in T

able

2.

shor

t ter

min

als

brea

k be

fore

(c)

Cas

e ea

rth

Mod

ule

term

inal

blo

ckvi

ewed

from

rea

r

111 3 5 7 9 13

15 17

19 21

23

25 27

2 4 6 810

14

16

18

20

22 24

26

28

12

39

29

31

33

35

37

41

43

45

30 32

34

36

38

42

44

46

40

47

48

49

50

51

52

53

54

55

56

(OP)

(OP)

RL1

20

RL3

20

Vx

23

21

2422

See

Not

e 2

See

Not

e 3

28

27

PR

RL1-A

T4/T

9

T3/T

8

RL3-A

T27

T22

T24

T21

T23

T28

T20

T7T2

T1

ZJ0393

26

T26

25

Rese

t

T25

RL1-B

T5/T

6

T10/T

11

RL3-B

RL1

RL3

(Res

et c

oils

)

Figu

re 1

4: T

ypic

al a

pplic

atio

n di

agra

m M

VAJ 2

05

Left

hand

Righ

t han

d

Com

bina

tions

of

outp

ut c

onta

cts

Tabl

e 1

(See

Not

e 4

)C

ombi

natio

n

Con

tact

sta

cks

view

ed fr

om fr

ont

L/h

stac

kR/

hst

ack

20M

-1

1

18M

2B

21

16M

4B

22

14M

6B

32

12M

8B

33

10M

10B

43

8M

12B

44

6M

14B

54

4M

16B

55

Tabl

e 2

Out

put c

onta

cts

to m

odul

e te

rmin

als

Mod

ule

term

inal

sC

ont.

stac

k

1M

MM

MM

MM

MM

M

2B

MM

MM

BM

MM

M

3B

BM

MM

BB

MM

M

4B

BB

MM

BB

BM

M

5B

BB

BM

BB

BB

M

46

48

41

43

45

47

38

40

29

313

3353

739

30

32

34

36

42

44

L/h

18

20

13

57

10

12

24

9111

3151

719

68

14

16

R/h

Con

tact

des

crip

tion

M:

Mak

eB:

Brea

k

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

30

32

34

36

38

40

42

44

46

48

B

29

31

33

35

37

39

41

43

45

47

A

Cas

e ea

rth

Mod

ule

term

inal

blo

ckvi

ewed

from

rea

r

111 3 5 7 9 13

15 17

19 21

23

25 27

2 4 6 810

14

16

18

20

22 24

26

28

12

39

29

31

33

35

37

41

43

45

30 32

34

36

38

42

44

46

40

47

48

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

2

Link

in fo

r hi

gh b

urde

n

Li

nk o

ut fo

r lo

w b

urde

n

Not

es

1(a

)

(b)

(c)

3

Link

for

econ

omis

ing

mus

t be

fitte

d.

4

The

num

bers

quo

ted

for

left

hand

and

rig

ht h

and

stac

ks in

Tab

le 1

are

cod

e nu

mbe

rs u

sed

for

cros

s re

fere

nces

to m

odul

e te

rmin

als

in T

able

2.

shor

t ter

min

als

brea

k be

fore

(c)

(OP)

(OP)

RL1

20

RL3

20

Vx

23

21

2422

See

Not

e 2

See

Not

e 3

28

27

PR

RL1-A

T4/T

9

T3/T

8

RL3-A

T27

T22

T24

T21

T23

T28

T20

T7T2

T1

ZJ0393

26

T26

25

Rese

t

T25

RL1-B

T5/T

6

T10/T

11

RL3-B

RL1

RL3

(Res

et c

oils

)

Section 7. COMMISSIONING TEST RECORD

Date Site

Station Circuit

Relay model no. Serial no.

Rating

Operating Volts DC Resetting Volts DC

Diagram no.

Visual inspection

Check operation at 60% LNV

Check operating time at 100% LNV ms ms

Check contact continuity

Check electrical reset at 60% LNV

Check reset time at 100% LNV (MVAJ102 only) s s

Check unit resets correctly

Check flags/cover

Remarks:

Commissioning Engineer Customer Witness

Date Date

continued overleaf

REPAIR FORM

Please complete this form and return it to ALSTOM T&D Protection & Control Ltd with theequipment to be repaired. This form may also be used in the case of application queries.

ALSTOM T&D Protection & Control LtdSt. Leonards WorksStaffordST17 4LX,England

For: After Sales Service Department

Customer Ref: _____________________ Model No: __________________

ALSTOM Contract Ref: _____________________ Serial No: _________

Date: _____________________

1. What parameters were in use at the time the fault occurred?

AC volts _____________ Main VT/Test set

DC volts _____________ Battery/Power supply

AC current _____________ Main CT/Test set

Frequency _____________

2. Which type of test was being used? ____________________________________________

3. Were all the external components fitted where required? Yes/No(Delete as appropriate.)

4. List the relay settings being used

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

5. What did you expect to happen?

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

6. What did happen?

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

7. When did the fault occur?

Instant Yes/No Intermittent Yes/No

Time delayed Yes/No (Delete as appropriate).

By how long? ___________

8. What indications if any did the relay show?

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

9. Was there any visual damage?

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

10. Any other remarks which may be useful:

____________________________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

______________________________________ _______________________________________Signature Title

______________________________________ _______________________________________Name (in capitals) Company name

Publication R8141A

Our policy is one of continuous product development and the right is reserved to supply equipment which may vary from that described.

©1998 ALSTOM T&D Protection & Control Ltd.

ALSTOM T&D Protection & Control Ltd St Leonards Works, Stafford ST17 4LX, EnglandTel: 44 (0) 1785 223251 Fax: 44 (0) 1785 212232 Email: [email protected] Internet: www.gecalsthomgpc.co.uk

0199 Printed in house

r8141a mvaj05

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