Application; Signals From Bypass Busbar - ABB Relion REC670 Applications Manual

Section 13
Control
13.4.2.1

Application

The interlocking for line bay (ABC_LINE) function is used for a line connected to a double
busbar arrangement with a transfer busbar according to figure 111. The function can also be
used for a double busbar arrangement without transfer busbar or a single busbar
arrangement with/without transfer busbar.
QB1
QA1
QB9
IEC04000478 V1 EN-US
Figure 111: Switchyard layout ABC_LINE
The signals from other bays connected to the module ABC_LINE are described below.
13.4.2.2

Signals from bypass busbar

To derive the signals:
Signal
BB7_D_OP
VP_BB7_D
EXDU_BPB
These signals from each line bay (ABC_LINE) except that of the own bay are needed:
Signal
QB7OPTR
VPQB7TR
EXDU_BPB
For bay n, these conditions are valid:
268
WA1 (A)
WA2 (B)
WA7 (C)
QB2 QB7
QC1
QC2
QC9
en04000478.vsd
All line disconnectors on bypass WA7 except in the own bay are open.
The switch status of disconnectors on bypass busbar WA7 are valid.
No transmission error from any bay containing disconnectors on bypass
busbar WA7
Q7 is open
The switch status for QB7 is valid.
No transmission error from the bay that contains the above information.
1MRK 511 358-UEN A
M13561-3 v8
M13560-4 v5
M13560-6 v5
Application manual