ABB Relion REC670 Applications Manual page 293

1MRK 511 358-UEN A
Signal
QB1OPTR
QB2OPTR
VPQB1TR
VPQB2TR
EXDU_DB
The logic is identical to the double busbar configuration "Signals in single breaker
arrangement".
For a bus-section disconnector, these conditions from the A1 busbar section are valid:
QB1OPTR (bay 1/sect.A1)
QB1OPTR (bay n/sect.A1)
VPQB1TR (bay 1/sect.A1)
VPQB1TR (bay n/sect.A1)
EXDU_DB (bay 1/sect.A1)
EXDU_DB (bay n/sect.A1)
IEC04000499 V1 EN-US
Figure 134: Signals from double-breaker bays in section A1 to a bus-section disconnector
For a bus-section disconnector, these conditions from the A2 busbar section are valid:
QB1OPTR (bay 1/sect.A2)
QB1OPTR (bay n/sect.A2)
VPQB1TR (bay 1/sect.A2)
VPQB1TR (bay n/sect.A2)
EXDU_DB (bay 1/sect.A2)
EXDU_DB (bay n/sect.A2)
IEC04000500 V1 EN-US
Figure 135: Signals from double-breaker bays in section A2 to a bus-section disconnector
For a bus-section disconnector, these conditions from the B1 busbar section are valid:
Application manual
QB1 is open.
QB2 is open.
The switch status of QB1 is valid.
The switch status of QB2 is valid.
No transmission error from the bay that contains the above information.
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S1DC_OP
&
VPS1_DC
&
EXDU_BB
&
en04000499.vsd
S2DC_OP
&
VPS2_DC
&
EXDU_BB
&
en04000500.vsd
Section 13
Control
287