ABB RET670 Applications Manual

3.12.3.3 Interlocking for bus-coupler bay ABC_BC (3)
Application
The interlocking for bus-coupler bay (ABC_BC, 3) function is used for a bus-coupler
bay connected to a double busbar arrangement according to figure
242. The function
can also be used for a single busbar arrangement with transfer busbar or double busbar
arrangement without transfer busbar.
189 289
189G
WA1 (A)
WA2 (B)
WA7 (C)
789
2089
289G
en04000514_ansi.vsd
152
ANSI04000514 V1 EN
Figure 242: Switchyard layout ABC_BC (3)
Configuration
The signals from the other bays connected to the bus-coupler module ABC_BC are
described below.
Signals from all feeders
To derive the signals:
Signal
BBTR_OP No busbar transfer is in progress concerning this bus-coupler.
VP_BBTR The switch status is valid for all apparatuses involved in the busbar transfer.
EXDU_12 No transmission error from any bay connected to the WA1/WA2 busbars.
These signals from each line bay (ABC_LINE), each transformer bay (AB_TRAFO),
and bus-coupler bay (ABC_BC), except the own bus-coupler bay are needed:
Signal
Q1289OPTR 189 or 289 or both are open.
VP1289TR The switch status of 189 and 289 are valid.
EXDU_12 No transmission error from the bay that contains the above information.
1MRK504116-UUS C Section 3
IED application
623
Application manual

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24