ABB RET630 Manuel utilisateur

Relion® 630 series

Transformer Protection and Control

RET630

Product Guide

Contents

1. Description...........................................................3

2. Application...........................................................3

3. Preconfigurations.................................................5

4. Protection functions.............................................8

5. Control................................................................10

6. Measurement.....................................................10

7. Disturbance recorder..........................................11

8. Event log.............................................................11

9. Disturbance report.............................................12

10. Circuit-breaker monitoring................................12

11. Trip-circuit supervision......................................12

12. Self-supervision.................................................12

13. Fuse failure supervision.....................................12

14. Current circuit supervision................................12

15. Access control...................................................13

16. Inputs and outputs............................................13

17. Communication.................................................14

18. Technical data...................................................14

19. Front panel user interface.................................51

20. Mounting methods............................................51

21. Selection and ordering data..............................53

22. Accessories.......................................................55

23. Tools..................................................................56

24. Supported ABB solutions..................................58

25. Terminal diagram...............................................59

26. References........................................................61

27. Functions, codes and symbols.........................61

28. Document revision history.................................64

Disclaimer

The information in this document is subject to change without notice and should not be construed as a commitment by ABB Oy. ABB Oy assumes

no responsibility for any errors that may appear in this document.

Trademarks

ABB and Relion are registered trademarks of ABB Group. All other brand or product names mentioned in this document may be trademarks or

registered trademarks of their respective holders.

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

2 ABB

1. Description

RET630 is a comprehensive transformer

management IED for protection, control,

measuring and supervision of power

transformers, unit and step-up transformers

including power generator-transformer blocks

in utility and industry power distribution

networks. RET630 is a member of ABB’s

Relion®product family and a part of its 630

protection and control product series

characterized by functional scalability and

flexible configurability. RET630 also features

necessary control functions constituting an

ideal solution for transformer bay control.

The supported communication protocols

including IEC 61850 offer seamless

connectivity to various station automation

and SCADA systems.

2. Application

RET630 provides main protection for two-

winding power transformers and power

generator-transformer blocks. Two pre-

defined configurations to match your typical

transformer protection and control

specifications are available. The pre-defined

configurations can be used as such or easily

adapted or extended with freely selectable

add-on functions, by means of which the IED

can be fine-tuned to exactly satisfy the

specific requirements of your present

application.

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

Revision: A

ABB 3

GUID-EBE462A5-7366-467A-BA18-583E75428EDB V1 EN

Figure 1. RET630 and REF630 IEDs applied for the incoming feeder and primary switchgear

in a double busbar arrangement. The RET630 with preconfiguration A is used for

protection and control of the power transformer, the REF630 with preconfiguration B

protects and controls the outgoing feeder and the REF630 with preconfiguration D is

used for the bus sectionalizer.

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

4 ABB

3. Preconfigurations

The 630 series IEDs are offered with optional

factory-made application preconfigurations.

The preconfigurations contribute to faster

commissioning and less engineering of the

IED. The preconfigurations include default

functionality typically needed for a specific

application. Each preconfiguration is

adaptable using the Protection and Control

IED Manager PCM600. By adapting the

preconfiguration the IED can be configured

to suit the particular application.

The adaptation of the preconfiguration may

include adding or removing of protection,

control and other functions according to the

specific application, changing of the default

parameter settings, configuration of the

default alarms and event recorder settings

including the texts shown in the HMI,

configuration of the LEDs and function

buttons, and adaptation of the default single-

line diagram.

In addition, the adaptation of the

preconfiguration always includes

communication engineering to configure the

communication according to the functionality

of the IED. The communication engineering

is done using the communication

configuration function of PCM600.

If none of the offered preconfigurations fulfill

the needs of the intended area of application

the 630 series IEDs can also be ordered

without any preconfiguration. This option

enables full flexibility to configure the IED

from the ground up.

Table 1. RET630 preconfigurations

Description Preconfiguration

Preconfiguration A for two-winding HV/MV transformer A

Preconfiguration B for two-winding HV/MV transformer, including

numerical REF protection B

Number of instances available N

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

ABB 5

Table 2. Supported functions

Functionality A B N

Protection

Three-phase non-directional overcurrent, low stage, LV side 1 1 2

Three-phase non-directional overcurrent, low stage, HV side 1 1

Three-phase non-directional overcurrent, high stage, LV side 1 1 2

Three-phase non-directional overcurrent, high stage, HV side 1 1

Three-phase non-directional overcurrent, instantaneous stage, LV side 1 1 2

Three-phase non-directional overcurrent, instantaneous stage, HV side 1 1

Three-phase directional overcurrent, low stage - - 2

Three-phase directional overcurrent, high stage - - 1

Non-directional earth fault, low stage, LV side - 1 2

Non-directional earth fault, low stage, HV side 1 1

Non-directional earth fault, high stage, LV side - 1 2

Non-directional earth fault, high stage, HV side 1 1

Directional earth fault, low stage - - 2

Directional earth fault, high stage - - 1

Stabilised restricted earth fault, LV side - 1 2

Stabilised restricted earth fault, HV side - 1

High-impedance–based restricted earth-fault protection - - 2

Negative-sequence overcurrent, LV side 1 1 4

Negative-sequence overcurrent, HV side 1 1

Three-phase inrush-current detector - - 1

Thermal overload for transformers 1 1 1

Three-phase overvoltage, LV side 2 2 2

Three-phase undervoltage, LV side 2 2 2

Positive-sequence overvoltage1) - - 2

Positive-sequence undervoltage1) - - 2

Negative-sequence overvoltage1) - - 2

Residual overvoltage - - 3

Frequency gradient - - 6

Overfrequency - - 3

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

6 ABB

Table 2. Supported functions, continued

Functionality A B N

Underfrequency - - 3

Transformer differential protection for two-winding transformers 1 1 1

Circuit-breaker failure, HV side 1 1 2

Tripping logic, LV side 1 1 2

Tripping logic, HV side 1 1

Control

Bay control 1 1 1

Interlocking interface 4 4 10

Circuit breaker/disconnector control 4 4 10

Circuit breaker 1 1 2

Disconnector 3 3 8

Local/remote switch interface - - 1

Synchrocheck - - 1

Supervision and monitoring

Circuit-breaker condition monitoring, HV side 1 1 2

Fuse failure supervision 1 - 1

Current-circuit supervision, LV side - 1 2

Current-circuit supervision, HV side 1 1

Trip-circuit supervision 2 2 3

Tap position indication - - 1

Energy monitoring 1 1 1

Generic measured values - - 3

Measured value limit supervision - - 9

Station battery supervision - - 1

Measurement

Three-phase current, LV side 1 1 2

Three-phase current, HV side 1 1

Three-phase voltage, phase-to-phase 1 1 1

Three-phase voltage, phase-to-earth 1 1 1

Residual current measurement 2 2 2

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

ABB 7

Table 2. Supported functions, continued

Functionality A B N

Residual voltage measurement - - 1

Sequence-current measurement - - 1

Sequence-voltage measurement - - 1

Power monitoring with P, Q, S, power factor, frequency 1 1 1

Metering

Pulse counter for energy metering - - 4

Disturbance recorder function

Analog channels 1-10 (samples) 1 1 1

Analog channel 11-20 (samples) - - 1

Analog channel 21-30 (samples) - - 1

Analog channel 31-40 (calc val) - - 1

Binary channels 1-16 1 1 1

Binary channels 17-32 1 1 1

Binary channels 33-48 1 1 1

Binary channels 49-64 1 1 1

1) Optional functions, to be specified at ordering

4. Protection functions

RET630 features transformer differential

protection with instantaneous and stabilized

stages to provide fast and selective protection

for phase-to-phase, winding interturn and

bushing short-circuits including most phase-to-

earth faults. Besides second harmonic

restraint an advanced waveform-based

blocking algorithm ensures stability at

transformer energization and fifth harmonic

restraint ensures stability at moderate

overexcitation.

Sensitive restricted earth-fault protection

(REF) completes the overall differential

protection to detect even single phase-to-

earth faults close to the earthing point of the

transformer. Either the conventional high-

impedance scheme or a numerical low-

impedance scheme can be selected for

protection of the windings. If the low-

impedance REF protection is used neither

stabilizing resistors nor varistors are needed

and as a further benefit the transforming ratio

of the earthing point current transformers can

differ from those of the phase current

transformers. Due to its unit protection

character the REF protection does not need

any time grading, and therefore a fast

protection operating time can be achieved.

The IED also incorporates thermal overload

protection to prevent an accelerated aging of

the transformer isolation. Multiple stages of

short-circuit, phase-overcurrent, negative-

phase-sequence and earth-fault back-up

protection are separately available for both

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

8 ABB

windings. Earth-fault protection based on the

measured or calculated residual overvoltage

is also available.

To detect reversed power flow or circulating

currents at parallel power transformers

RET630 also offers directional overcurrent

protection. Further, overfrequency and

underfrequency protection, overvoltage and

undervoltage protection and circuit-breaker

failure protection are provided.

GUID-FD724103-823D-4443-ACAE-412BB7906240 V1 EN

Figure 2. Protection function overview of preconfiguration A

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

ABB 9

GUID-2825EF67-84B7-4039-B34E-8A0BA237AE1E V1 EN

Figure 3. Protection function overview of preconfiguration B

5. Control

The IED incorporates local and remote

control functions. The IED offers a number of

freely assignable binary inputs/outputs and

logic circuits for establishing bay control and

interlocking functions for circuit breakers and

motor operated switch-disconnectors. The

IED supports both single and double busbar

substation busbar layouts. The number of

controllable primary apparatuses depends on

the number of available inputs and outputs in

the selected configuration. Besides

conventional hardwired signaling also

GOOSE messaging according to IEC

61850-8-1 can be used for signal interchange

between IEDs to obtain required interlockings.

Further, the IED incorporates a synchro-

check function to ensure that the voltage,

phase angle and frequency on either side of

an open circuit breaker satisfy the conditions

for safe interconnection of two networks.

6. Measurement

The IED continuously measures the high

voltage (HV) side and the low-voltage (LV)

side phase currents and the neutral current(s)

of the protected transformer. Further, it

measures the positive and negative sequence

currents on both sides. The IED also

measures phase-to earth or phase-to-phase

Transformer Protection and Control 1MRS756788 A

RET630

Product version: 1.0 Issued: 15.09.2009

10 ABB

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