ABB REL670 2.2 IEC - Application

15.4.3.1 Application
M13555-3 v8
The interlocking for bus-coupler bay (ABC_BC) function is used for a bus-coupler
bay connected to a double busbar arrangement according to figure
326. The
function can also be used for a single busbar arrangement with transfer busbar or
double busbar arrangement without transfer busbar.
QB1 QB2
QC1
QA1
WA1 (A)
WA2 (B)
WA7 (C)
QB7QB20
QC2
en04000514.vsd
IEC04000514 V1 EN-US
Figure 326: Switchyard layout ABC_BC
15.4.3.2 Configuration
M13553-138 v4
The signals from the other bays connected to the bus-coupler module ABC_BC are
described below.
15.4.3.3 Signals from all feeders
M13553-6 v4
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
QQB12OPTR QB1 or QB2 or both are open.
VPQB12TR The switch status of QB1 and QB2 are valid.
EXDU_12 No transmission error from the bay that contains the above information.
Section 15 1MRK 506 369-UEN B
Control
664 Line distance protection REL670 2.2 IEC
Application manual