Functions
106
7SS52 V4 Manual
C53000-G1176-C182-1
Figure 5-13 Switching states in bypass operation (Feeder and bus coupler on the same bus
zone)
US operation with
several feeders
The transfer operation is usually started for one feeder. In that, a feeder is connected
to the transfer / combination busbar above the bus coupler. For an operation that is as
flexible as possible, several feeders and bus couplers can be connected to the transfer
/ combination busbar at the same time.
Meas.
system
Bay/
CT
BZA BZB TB
Check
zone
Line side Feeder,
bus coup.
—Bus
coupler
Feeder
Bus side Feeder,
bus coup.
—Bus
coupler
Feeder
Meas.
system
Bay/
CT
BZA BZB TB
Check
zone
Line side Feeder — connected
to BZA
Feeder
Bus side Feeder,
bus coup.
—no
1)
protection
Feeder,
Coup
1)
The current being fed by the feeder or into the feeder
cannot be measured.
Meas.
system
Bay/
CT
BZA BZB TB
Check-
zone
Line side coupler — Feeder,
bus coup.
Feeder
Bus side coupler — no
1)
protection
Bus
coupler
1)
The current being fed by the feeder or into the feeder
cannot be measured.
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