Signals In Double-Breaker Arrangement - ABB REG670 Applications Manual

1MRK 502 071-UEN -
15.3.6.3
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual
QB2OPTR (QB220OTR)(bay 1/sect.B1)
QB2OPTR (QB220OTR)(bay n/sect.B1)
VPQB2TR (VQB220TR)(bay 1/sect.B1)
VPQB2TR (VQB220TR)(bay n/sect.B1)
EXDU_BB (bay 1/sect.B1)
EXDU_BB (bay n/sect.B1)
IEC04000496 V1 EN
Figure 262: Signals from any bays in section B1 to a bus-section disconnector
For a bus-section disconnector, these conditions from the B2 busbar section are valid:
QB2OPTR (QB220OTR)(bay 1/sect.B2)
QB2OPTR (QB220OTR)(bay n/sect.B2)
DCOPTR (B2/B3)
VPQB2TR(VQB220TR) (bay 1/sect.B2)
VPQB2TR(VQB220TR) (bay n/sect.B2)
VPDCTR (B2/B3)
EXDU_BB (bay 1/sect.B2)
EXDU_BB (bay n/sect.B2)
EXDU_DC (B2/B3)
IEC04000497 V1 EN
Figure 263: Signals from any bays in section B2 to a bus-section disconnector

Signals in double-breaker arrangement

If the busbar is divided by bus-section disconnectors, the condition for the busbar
disconnector bay no other disconnector connected to the bus-section must be made by
a project-specific logic.
The same type of module (A1A2_DC) is used for different busbars, that is, for both
bus-section disconnector A1A2_DC and B1B2_DC. But for B1B2_DC,
corresponding signals from busbar B are used.
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Section 15
Control
S1DC_OP
&
VPS1_DC
&
EXDU_BB
&
en04000496.vsd
S2DC_OP
&
VPS2_DC
&
EXDU_BB
&
en04000497.vsd
535