Signals In 1 1/2 Breaker Arrangement - ABB Relion REC670 Applications Manual

Section 13
Control
QB2OPTR (bay 1/sect.B1)
QB2OPTR (bay n/sect.B1)
VPQB2TR (bay 1/sect.B1)
VPQB2TR (bay n/sect.B1)
EXDU_DB (bay 1/sect.B1)
EXDU_DB (bay n/sect.B1)
IEC04000501 V1 EN-US
Figure 136: Signals from double-breaker bays in section B1 to a bus-section disconnector
For a bus-section disconnector, these conditions from the B2 busbar section are valid:
QB2OPTR (bay 1/sect.B2)
QB2OPTR (bay n/sect.B2)
VPQB2TR (bay 1/sect.B2)
VPQB2TR (bay n/sect.B2)
EXDU_DB (bay 1/sect.B2)
EXDU_DB (bay n/sect.B2)
IEC04000502 V1 EN-US
Figure 137: Signals from double-breaker bays in section B2 to a bus-section disconnector
13.4.6.4

Signals in 1 1/2 breaker arrangement

If the busbar is divided by bus-section disconnectors, the condition for the busbar
disconnector bay
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.
(WA1)A1
(WA2)B1
IEC04000503 V1 EN-US
Figure 138: Busbars divided by bus-section disconnectors (circuit breakers)
288
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no other disconnector connected to the bus-section must be made by a
Section 1
A1A2_DC(BS)
B1B2_DC(BS)
BH_LINE BH_LINE
S1DC_OP
&
VPS1_DC
&
EXDU_BB
&
en04000501.vsd
S2DC_OP
&
VPS2_DC
&
EXDU_BB
&
en04000502.vsd
Section 2
A2
B2
BH_LINE BH_LINE
en04000503.vsd
1MRK 511 358-UEN A
M13542-127 v5
Application manual