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.
© Copyright 2009 ABB Oy.
All rights reserved.
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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