ABB Relion REC670 - Page 293

Signal
QB1OPTR QB1 is open.
QB2OPTR QB2 is open.
VPQB1TR The switch status of QB1 is valid.
VPQB2TR The switch status of QB2 is valid.
EXDU_DB No transmission error from the bay that contains the above information.
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)
S1DC_OP
VPS1_DC
EXDU_BB
en04000499.vsd
&
&
&
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)
S2DC_OP
VPS2_DC
EXDU_BB
en04000500.vsd
&
&
&
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:
1MRK 511 358-UEN A Section 13
Control
287
Application manual