ABB REX 521, Техническое справочное руководство, стандартные конфигурации

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1MRS751802-MUM REX 521
245
Protection Relay
Technical Reference Manual, Standard Configurations
11.8.4.2. Indication and control connections
All the necessary settings for the indication and control signals of the circuit breaker
and the disconnector for the incoming feeder can be set as described in the first
application example on Section 9.1. Outgoing feeder, Basic B01 onwards for the
outgoing feeder (except for the earth switch). The settings are made by means of the
Relay Setting Tool or the local HMI. The settings can be found in:
Main menu\Configuration\Input Signals\
Main menu\Configuration\Input SWGRP\
Main menu\Configuration\Output Signals\
Main menu\Configuration\Output SWGRP\
.
11.8.5. Implementations
In the sections below a few implementation examples for the standard configuration
H08 are presented.
11.8.5.1. Blocking signal received from the outgoing feeder
The blocking signal received from the outgoing feeder can be implemented as
described in the second application example (Section 9.2. Incoming feeder, Basic
B01)
11.8.5.2. Outgoing blocking signal to the overcurrent relay on the HV side
The outgoing blocking signal to the overcurrent relay on the HV side can be
implemented as described in the second application example (Section 9.2. Incoming
feeder, Basic B01)
11.8.5.3. Earth fault stage Io>>> to trip the breaker on the HV side of the
transformer
The earth fault stage Io>>> to trip the breaker on the HV side of the transformer can
be implemented as described in the second application example (Section 9.2.
Incoming feeder, Basic B01)
11.8.5.4. Circuit-breaker failure protection
The circuit-breaker failure protection can be implemented as described in the second
application example (Section 9.2. Incoming feeder, Basic B01). CBFP function is
not available for the overvoltage and undervoltage protection.
11.8.5.5. Disturbance recorder
The disturbance recorder (DREC) can be found in
Main menu\Measurement\DREC\
. All of the measured current and voltage
signals as well as all of the start signals from the protection functions and the Trip 1
and Trip 2 signals are connected to the DREC in the H05 standard configuration.
The recording can be triggered by any of the alternatives listed below:
• Triggering on the rising or falling edge of the protective start signals
• Triggering on current or voltage measurement