r8141b mvaj 05-10-20

Types MVAJ05, 10, 20

Tripping and Control Relays

Service Manual

R8141B

HANDLING OF ELECTRONIC EQUIPMENT

A persons normal movements can easily generate electrostatic potentials of several thousand volts. Discharge of these voltages into semiconductor devices when handling circuits can cause serious damage, which often may not be immediately apparent but the reliability of the circuit will have been reduced.

The electronic circuits of AREVA T&D products are immune to the relevant levels of electrostatic discharge when housed in their cases. Do not expose them to the risk of damage by withdrawing modules unnecessarily.

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

1. Before removing a module, ensure that you are a same electrostatic potential as the equipment by 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 same electrostatic potential. Shaking hands achieves equipotential.

4. Place the module on an antistatic surface, or on a conducting surface which is at the same potential 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 and IEC 60147-0F.

If you are making measurements on the internal electronic circuitry of an equipment in service, it is preferable 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 not available 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 whenever possible.

AREVA T&D strongly recommends that detailed investigations on the electronic circuitry, or modification work, should be carried out in a Special Handling Area such as described in BS5783 or IEC 60147-0F.

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

CONTENT

1. SAFETY SECTION 3

1.1 Health and safety 3

1.2 Explanation of symbols and labels 3

2. INSTALLING, COMMISSIONING AND SERVICING 3

3. EQUIPMENT OPERATING CONDITIONS 4

3.1 Current transformer circuits 4

3.2 External resistors 4

3.3 Battery replacement 4

3.4 Insulation and dielectric strength testing 4

3.5 Insertion of modules and pcb cards 4

3.6 Fibre optic communication 5

4. OLDER PRODUCTS 5

5. DECOMMISSIONING AND DISPOSAL 5

6. TECHNICAL SPECIFICATIONS 6

1. SAFETY SECTION

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

1.1 Health and safety

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

1.2 Explanation of symbols and labels

The meaning of symbols and labels may be used on the equipment or in the product 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 a terminal block or sub-assembly e.g. power supply.

*NOTE: THE TERM EARTH USED THROUGHOUT THE PRODUCT DOCUMENTATION IS THE

DIRECT EQUIVALENT OF THE NORTH AMERICAN TERM GROUND.

2. INSTALLING, COMMISSIONING AND SERVICING

Equipment connections

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

Terminals exposed during installation, commissioning and maintenance may present 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 all personnel to avoid electrical shock or energy hazards.

Voltage and current connections should be made using insulated crimp terminations to ensure that terminal block insulation requirements are maintained for safety. To ensure that wires are correctly terminated, the correct crimp terminal and tool for the wire size should be used.

Before energising the equipment it must be earthed using the protective earth terminal, or the appropriate termination of the supply plug in the case of plug connected equipment. Omitting or disconnecting the equipment earth may cause a safety hazard.

The recommended minimum earth wire size is 2.5mm2, unless otherwise stated in the 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)

− Remove front plate plastic film protection

− Remove insulating strip from battery compartment

3. EQUIPMENT OPERATING CONDITIONS

The equipment should be operated within the specified electrical and environmental limits.

3.1 Current transformer circuits

Do not open the secondary circuit of a live CT since the high level voltage produced may be lethal to personnel and could damage insulation.

3.2 External resistors

Where external resistors are fitted to relays, these may present a risk of electric shock or burns, if touched.

3.3 Battery replacement

Where internal batteries are fitted they should be replaced with the recommended type and be installed with the correct polarity, to avoid possible damage to the equipment.

3.4 Insulation and dielectric strength testing

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

3.5 Insertion of modules and pcb cards

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

3.6 Fibre optic communication

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

4. OLDER PRODUCTS

Electrical adjustments

Equipments which require direct physical adjustments to their operating mechanism to change current or voltage settings, should have the electrical power removed before making the change, to avoid any risk of electrical shock.

Mechanical adjustments

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

Draw out case relays

Removal of the cover on equipment incorporating electromechanical operating elements, 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 the equipment whilst it is energised. This is to avoid possible shock or damage hazards. 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 before insertion or removal, to avoid potentially lethal voltages.

5. DECOMMISSIONING AND DISPOSAL

Decommissioning: The auxiliary supply circuit in the relay may include capacitors across the supply or to earth. To avoid electric shock or energy hazards, after completely isolating the supplies to the relay (both poles of any dc supply), the capacitors should be safely discharged via the external terminals prior to decommissioning.

Disposal: It is recommended that incineration and disposal to water courses is avoided. The product should be disposed of in a safe manner. Any products containing batteries should have them removed before disposal, taking precautions to avoid short circuits. Particular regulations within the country of operation, may apply to the disposal of lithium batteries.

6. TECHNICAL SPECIFICATIONS

Protective fuse rating

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

Insulation class: IEC 601010-1 : 1990/A2 : 2001 Class I EN 61010-1: 2001 Class I

This equipment requires a protective (safety) earth connection to ensure user safety.

Insulation Category (Overvoltage):

IEC 601010-1 : 1990/A2 : 1995 Category III EN 61010-1: 2001 Category III

Distribution level, fixed insulation. Equipment in this category is qualification tested at 5kV peak, 1.2/50µs, 500Ω, 0.5J, between all supply circuits and earth and also between independent circuits.

Environment: IEC 601010-1 : 1990/A2 : 1995 Pollution degree 2

EN 61010-1: 2001 Pollution degree 2

Compliance is demonstrated by reference to generic safety standards.

Product Safety:

72/23/EEC

EN 61010-1: 2001 EN 60950-1: 2002

Compliance with the European Commission Low Voltage Directive.

Compliance is demonstrated 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 andAREVA T&D should be promptly notified. Relays which are supplied unmounted and not intended for immediate installation should be returned to 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 AREVA T&D 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 AREVA T&D for repair, then the form at the back of this manual should be completed and sent with the equipment together with a copy of any commissioning test 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.

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RL1

(Res

et)

T27

T28

T5T6T4T2

4

T3T2

2

24

22

See

Not

e 2

-V

x

Figu

re 5

: Ty

pica

l app

licat

ion

diag

ram

MVA

J 101

Con

tact

des

crip

tion

M: M

ake

B: B

reak

10M

-M

MM

MM

MM

MM

M8M

2B

BM

MM

MB

MM

MM

6M

4B

BB

MM

MB

BM

MM

4M

6B

BB

BM

MB

BB

MM

Com

bina

tion

ofou

tput

con

tact

sO

utpu

t con

tact

s to

mod

ule

term

inal

s

13

57

911

13

151

719

10

121

4161

820

24

68

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

2 Li

nk in

for

high

bur

den

Li

nk o

ut fo

r lo

w b

urde

n

Not

es

1(a

)

(b)

(c)

3 Li

nk fo

r ec

onom

isin

g m

ust b

e fit

ted.

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

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

Vie

wed

from

fron

t

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

-

Figu

re 6

: Ty

pica

l app

licat

ion

diag

ram

MVA

J 102

10M

-M

MM

MM

MM

MM

M8M

2B

BM

MM

MB

MM

MM

6M

4B

BB

MM

MB

BM

MM

4M

6B

BB

BM

MB

BB

MM

Com

bina

tion

ofou

tput

con

tact

sO

utpu

t con

tact

s to

mod

ule

term

inal

s

Con

tact

des

crip

tion

M:

Mak

eB:

Brea

k

13

57

911

13

151

719

10

121

4161

820

24

68

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

Vie

wed

from

fron

t

27

PR

25

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

Not

es

1(a

)

(b)

(c)

Cas

e ea

rth

Mod

ule

term

inal

blo

ckvi

ewed

from

rea

r

RL1

10

(OP)

RL1-A

T4 T3 T1 T27

T2 T28

ZJ0394

T9

RL1-B

-+V

x

3 54 6

1 78

1314

1718

1920

2122

2324

2526

2728

910

1112

1516

28

2

Figu

re 7

: Ty

pica

l app

licat

ion

diag

ram

MVA

J 103

Vie

wed

from

fron

t

22

24

26

28

20

18

16

14

12

10864 2

21

23

25

27

19

17

15

13

11

9753 1Cas

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

2. Li

nk in

for

high

bur

den.

Li

nk o

ut fo

r lo

w b

urde

n.

3.

Do

not f

it lin

k.

Con

tact

des

crip

tion

M: M

ake

B: Br

eak

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

BB

MM

2M

8B

BB

BB

MB

BB

BM

Com

bina

tions

of

outp

ut c

onta

cts

Out

put c

onta

cts

to m

odul

e te

rmin

als

13

57

911

13

15

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

-

Figu

re 8

: Ty

pica

l app

licat

ion

diag

ram

MVA

J 104

10

M-

MM

MM

MM

MM

MM

8M

2B

BM

MM

MB

MM

MM

6M

4B

BB

MM

MB

BM

MM

4M

6B

BB

BM

MB

BB

MM

2M

8B

BB

BB

MB

BB

BM

Com

bina

tion

ofou

tput

con

tact

sO

utpu

t con

tact

s to

mod

ule

term

inal

s

13

57

911

13

15

17

19

10

121

4161

820

24

68

Con

tact

des

crip

tion

M: M

ake

B: B

reak

Vie

wed

from

fron

t

3 Li

nk to

ena

ble

rese

t inh

ibito

r/ec

onom

isin

g co

il.

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

2 Li

nk in

for

high

bur

den

Link

out

for

low

bur

den

Not

es

1(a

)

(b)

(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

See

Not

e 3

27

Rese

t

25

RL1

10

(OP)

RL1

-AT1 T2

5

T2 T26

ZJ0

39

3

RL1

-B

-+V

x

26

PR2

8

RL1

(Res

et)

T27

T28

T5T2

3

T11

T21

T4T2

4

T3T2

2

23

21

24

22

See

Not

e 2

See

Not

e 3

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

Figu

re 9

: Ty

pica

l app

licat

ion

diag

ram

MVA

J 105

10M

-M

MM

MM

MM

MM

M8M

2B

BM

MM

MB

MM

MM

6M

4B

BB

MM

MB

BM

MM

4M

6B

BB

BM

MB

BB

MM

2M

8B

BB

BB

MB

BB

BM

Com

bina

tion

ofou

tput

con

tact

sO

utpu

t con

tact

s to

mod

ule

term

inal

s

Con

tact

des

crip

tion

M:

Mak

eB:

Brea

k

13

57

911

13

151

719

10

121

4161

820

24

68

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

Vie

wed

from

fron

t

27

Rese

t

25

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

RL1

10

(OP)

RL1-A

T1 T25

T2 T26

ZJ0393

RL1-B

-+V

x

26

Not

es

1(a

)

(b)

(c)

Cas

e ea

rth

Mod

ule

term

inal

blo

ckvi

ewed

from

rea

r

3 54 6

1 78

1314

1718

1920

2122

2324

2526

2728

910

1112

15162

2.

Link

in fo

r hi

gh b

urde

nLi

nk o

ut fo

r lo

w b

urde

n3.

Link

to e

nabl

e re

set i

nhib

itor/

econ

omis

ing

coil

PR28

RL1

(Res

et)

T27

T28

T5T2

3

T11

T21

T4T2

4

T3T2

2

23

21

24

22

See

Not

e 2

See

Not

e 3

Figu

re 1

0: T

ypic

al a

pplic

atio

n di

agra

m M

VAJ 2

01

2 Li

nk in

for

high

bur

den

Li

nk o

ut fo

r lo

w b

urde

n

Left

hand

Righ

t han

d

Com

bina

tions

of

outp

ut c

onta

cts

Tabl

e 1

Tabl

e 2

Out

put c

onta

cts

to m

odul

e te

rmin

als

(See

Not

e 4)

Con

tact

des

crip

tion:

M:

Mak

eB:

Brea

k

Mod

ule

term

inal

sC

ombi

natio

n

Con

tact

sta

cks

view

ed fr

om fr

ont

13

57

46

48

2 4 6 8 10

12

14

16

18

20

B

1 3 5 7 9 11

13

15

17

19

A

41

43

45

47

38

40

10

12

29

31

33

353

739

18

20

24

9111

3151

719

30

32

68

14

16

34

36

42

44

Con

t.st

ack

L/h

R/h

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

1M

MM

MM

MM

MM

M

2B

MM

MM

BM

MM

M

3B

BM

MM

BB

MM

M

4B

BB

MM

BB

BM

M

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

CT

shor

ting

links

mak

ebe

fore

(b) a

nd (c

) dis

conn

ect

long

term

inal

s

shor

t ter

min

als

brea

k be

fore

(c)

Not

es

1(a

)

(b)

(c)

3 Li

nk fo

r ec

onom

isin

g m

ust b

e fit

ted.

111 3 5 7 9 13

15 17

19 21

23

25 27

2 4 6 81

0

14

16

18

20

22 24

26

28

12

39

29

31

33

35

37

41

43

45

47

30 32

34

36

38

42

44

46

48

40

4 Th

e nu

mbe

rs q

uote

d fo

r le

ft ha

nd a

nd r

ight

han

dst

acks

in T

able

1 a

re c

ode

num

bers

use

d fo

rcr

oss

refe

renc

es to

mod

ule

term

inal

s in

Tab

le 2

.

(OP)

(OP)

RL1

10

RL3

10

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

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

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inal

s

2

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in fo

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n

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)

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4

The

num

bers

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ted

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and

rig

ht h

and

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ks in

Tab

le 1

are

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Mod

ule

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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

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9

T3/T

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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

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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

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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

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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

!

REPAIR FORM

Please complete this form and return it to AREVA T&D with the equipment to be repaired. This form may also be used in the case of application queries.

AREVA T&D St. Leonards Works Stafford ST17 4LX England For : After Sales Service Department

Customer Ref: ___________________ Model No: ___________________

AREVA 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?

continued overleaf

!

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

AREVA T&D's Automation & Information Systems Business www.areva-td.com T&D Worldwide Contact Centre online 24 hours a day: +44 (0) 1785 25 00 70 http://www.areva-td.com/contactcentre/

Pu

blic

atio

n:

R8

14

1B

r8141b mvaj 05-10-20

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