'(& )( )'& &) ( &!& ")& &$(( $#
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6 - 45
Siemens AG
⋅
May 1998
The bay units allow easy testing of the trip circuits
and the circuit breaker by means of the local operaĆ
tion facilities.
The three-phase test is initiated through the bay unit
by depressing function key F2 (direct addressing to
). Pre-requisites for the test routine are
that no protection function is active, that the bay is
out of service and that the bay current is below the
setting value
< CB-TEST (
).
The circuit breaker test can also be initiated per
phase. For this purpose go to direct address
and then scroll back by "
A
" until reaching
the desired test option.
Y
B
4 0 0 0
J
T E S T S
Address block for tests and commissioning support
"
A
4 4 0 0
J
C B T E S T
L I V E T R I P
After selection of the desired test it is initiated by deĆ
pressing key "ENTER".
"
A
4 4 0 1
J
C B T R I P
C B P O L E L 1 ?
Circuit breaker test
D
phase L1
"
A
4 4 0 2
J
C B T R I P
C B P O L E L 2 ?
Circuit breaker test
D
phase L2
"
A
4 4 0 3
J
C B T R I P
C B P O L E L 3 ?
Circuit breaker test
D
phase L3
"
A
4 4 0 4
J
C B T R I P
C B T H R E E – P O L E ?
Circuit breaker test
D
three-phase
The test is initiated by confirmation of the question
with key "ENTER".
The test result is shown in the display. Depressing
key "ESC" or the vertical arrow keys means leaving
the test block and jumping back to the higher operaĆ
tion level.
For any maintenance work in the bay, it has to be
taken out of service.
First of all, local operation must be authorized for all
bays from the master unit under address
.
Depressing the function key "F1" leads directly to the
operation "bay out of service" (
). If the
bay already is out of service, then function key "F1"
puts back the "bay in service".
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. ElectricalPartManuals
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Summary of Contents for SIPROTEC 7SS52
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