6r matrix system auxiliary, trip & supervision...

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6R MATRIX SystemAuxiliary, Trip & Supervision Relays

6R MATRIX SystemAuxiliary, Trip & Supervision Relays

Why they are still needed?

Desirable Attributes

Case System

Element construction

High Speed Trip Relays

Auxiliary Relays

Supervision Relays

Termination & Mounting

Why areElectro-mechanical Relays

Still in Use?

Electro mechanical contacts are the preferred output devicefor all major protection relay manufacturers for numerousreasons including:

SimpleReliableCompactLow costElectrical isolationHigh switching capacity for sizeC/O contacts available

Why are Additional RelaysExternal to the Protection Relay

Required?

Integrated protection & automation schemes retainsignificant demand for relay output contacts;

As more functions are incorporated into fewer numericprotection relays the number of relay outputs available isoften not sufficient;

To enable simple diagnosis of system faults through therelays non volatile flags;(Particularly at sites where SCADA is not installed)

Why are Additional RelaysExternal to the Protection Relay

Required?

The miniature relays in numeric protection relaysdo not offer the functionality requirede.g. mechanical lockout contacts, non volatile flags;

Internal low duty output relay contacts are not visible orreadily serviceable;

Failure of an output contact in a numeric protection relay willbe expensive to rectify & may require return to the factory.

What are the FunctionalRequirements for the External Relays?

Large number of contacts SELF RESET AND LATCHING

High switching capacity DC BREAK RATING

High level of isolation between coil and contacts

High visibility flag indicator SELF RESET AND LATCHING

Secure mechanical LOCKOUT FUNCTION

Time delay on drop off function SLUG TIME DELAY

High and low operating burden options

What are the Desirable AttributesFor the External Relays?

High security (No false operation)

High reliability (Simple solid construction)

High speed operation

No contact bounce

Wide range of contact configurations

Wide voltage operating range

Modular configuration for flexible panellayout & circuit design

High packing density to reduce panel space

Short delivery lead times and reasonable cost

All Attributes Met Using6R MATRIX System

Modular Construction

Pre-Defined Relay Elements

The 6R MATRIX system was developed as a modular range of auxiliary relays to provide a complete solution for protection engineers.

The pre-defined function versions are intended to:

Simplify specification & ordering

Reduce cost due to model rationalization

Provide a cross reference to other manufacturers

Standardise the wiring

Three Relay Functions

Tripping relays

Auxiliary relays

Trip circuit supervision relays

High Speed Multi Trip

<10ms operating time including bounce

Anti bounce buffers

High burden & low burden types

Latching or self reset contacts

Latching flags with large target window

Hand reset versions

Electrical reset versions

Anti Bounce Buffers

Electrical Reset Mechanism

Contact Ratings

6R RELAY CONTACT RATINGSMake & Carry Continuously 3,000 VA AC resistive with maximums of 660V & 12A 3,000 W DC resistive with maximums of 660V & 12A

Make & Carry for 3 Seconds 7,500 VA AC resistive with maximums of 660V & 30A 7,500 W DC resistive with maximums of 660V & 30A

AC Break Capacity 3,000 VA AC resistive with maximums of 660V & 12A

DC Break Capacity (Amps)

Voltage 24V 48V 125V 250V

Resistive rating 12 2 0.5 0.25

L/R=40ms Maximum break 12 1 0.25 0.15

Higher DC break ratings available with magnetic arc blow outs fitted.

Pre-Defined Relay Elements

6RJ Series High Speed Tripping Relays RMS Alstom Functional Description Contacts

6RJ11 MVAJ11 Low burden self reset high speed trip relay 5 or 10

6RJ13 MVAJ13 Low burden hand reset high speed trip relay 5 or 10

6RJ15 MVAJ15 Low burden hand/electrical reset high speed trip relay 5 or 10

6RJ21 MVAJ21 High burden self reset high speed trip relay 5 or 10

6RJ23 MVAJ23 High burden hand reset high speed trip relay 5 or 10

6RJ25 MVAJ25 High burden hand/electrical reset high speed trip relay 5 or 10

Pre-Defined Relay Elements

6RA Series Auxiliary Flag Relays RMS Alstom Functional Description Contacts

6RA11 MVAA11 Self reset auxiliary flag relay – 1 element 6

6RA21 MVAA21 Self reset auxiliary flag relay – 2 element 6 x 2

6RA13 MVAA13 Hand reset auxiliary flag relay – 1 element 6

6RA23 MVAA23 Hand reset auxiliary flag relay – 2 element 6 x 2

6RA15 MVAA15 Hand/Electrical reset auxiliary flag relay – 1 element 6

Single Element Version

Two Element Version

Four Element Version

Supervision Relays

The 6RX Series Relays provide fail safe supervision of CB trip circuits.

Four models are available depending on the degree of supervision required & wiring configuration.

6R MATRIX SystemPre-Defined Relay Elements

6RX Series Trip Circuit Supervision Relays RMS Alstom Functional Description Contacts

6RX11 MVAX11 Trip relay supervision 2

6RX12 MVAX12 Trip supply supervision 2

6RX21 MVAX21 Trip circuit supervision 2

6RX31 MVAX31 Trip circuit supervision – 3 element 2

6RX21 & 6RX31 supervise the CB in both open & closed position

6RX21System De-energised

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

Monitored circuits

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

6RXSupervision Relays

A significant safety feature is the fitting of internal resistors to limit the trip coil current to well below the circuit breaker trip coil operate current, should the relay be accidentally short circuited.

6RX21CB Open

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Trip supplyTrip circuitTrip coil

6RX21CB Closing

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Transient condition

6RX21CB Closed

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Trip supplyTrip circuitTrip coil

6RX21CB Trip

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Trip supplyTrip circuitTrip coil energized

6RX21CB Opening

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Transient condition

6RX21CB Open

(Trip contact closed)

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Trip supplyTrip circuitTrip coil

6RX21CB Open

(Trip contact open)

+

RL1R1

R221 22

2

Trip RelayCB Aux Switch

52 - b

Trip Coil

52T

13 14

52 - a

13

5

24

6

RL1-1

RL1-2

Trip supplyTrip circuitTrip coil

2M28Case Details

4M28Case Details

Module Product Label

Module Wiring Label

Transit Shipping Flag Wedge

Terminal Screws

Mounting

M4 Size

Self threading

Suit Rack or flush mounting

Semi Projection Mount Kit

19 Inch Sub Rack Frames

6R MATRIXAdditional Information

Technical BulletinUser GuideAuto Cad Mounting DrawingsPrice & Availability

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