•
BC_12_CL = 0
•
VP_BC_12 = 1
•
BBTR_OP = 1
•
VP_BBTR = 1
15.4.4
Interlocking for transformer bay AB_TRAFO
IP14149-1 v2
15.4.4.1
Application
M13567-3 v7
The interlocking for transformer bay (AB_TRAFO) function is used for a
transformer bay connected to a double busbar arrangement according to figure
The function is used when there is no disconnector between circuit breaker and
transformer. Otherwise, the interlocking for line bay (ABC_LINE) function can be
used. This function can also be used in single busbar arrangements.
QB1
QB2
QC1
QA1
QC2
WA1 (A)
WA2 (B)
QA2
QC3
T
QC4
QB4
QB3
QA2 and QC4 are not
used in this interlocking
AB_TRAFO
en04000515.vsd
IEC04000515 V1 EN-US
Figure 332:
Switchyard layout AB_TRAFO
M13566-4 v4
The signals from other bays connected to the module AB_TRAFO are described
below.
1MRK 506 369-UEN B
Section 15
Control
Line distance protection REL670 2.2 IEC
669
Application manual
Summary of Contents for REL670 2.2 IEC
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