'(& )( )'& &) ( &!& ")& &$(( $# Ć %&( $# #)" &&#$
6 - 16
Siemens AG ⋅ May 1998
"
A
6 2 0 2 S T A B F A C : B F
= . 5 0
Stabilizing factor for the differential protection
principle with CBF mode of operation set to
"unbalance", "TRIP rep/unb" and TRIP/UNB pulse"
minimum setting: 0.00...............
maximum setting: 0.80...............
"
A
6 2 0 3 I > D I F F : B F
= 2 * I > B F ( D A 6 7 0 0 )
Differential current threshold with CBF mode of
operation set to "unbalance", "TRIP rep/unb" and
TRIP/UNB pulse"
The setting value is defined by the feeder-selective
parameter DA 67XY (current limit value for recogniĆ
tion of breaker failure).
The parameters DA 6202/ZE and DA 6203/ZE are
identical for both the bus-section specific protection
and the check zone protection.
"
A
6 2 0 4 T I M E U N B B F
= . 2 5 s
Time delay for circuit breaker failure processing
minimum setting: 0.05 s.............
maximum setting: 1.00 s.............
"
A
6 2 0 5 T – B F I M P U L S
= . 5 0 s
Time delay for the three-phase TRIP repeat command
after external breaker failure initiation (mode of operaĆ
tion TRIP/UNB pulse)
minimum setting: 0.05 s.............
maximum setting: 1.00 s.............
"
A
6 2 0 6 T – C B F A U L T
= . 1 0 s
Time delay after external initiation of breaker failure
protection and signalling >CB fail (FNr. 7028/FE) inĆ
stead of "T-CBF" (DA 6204/ZE).
minimum setting: 0.00 s.............
maximum setting: 1.00 s.............
"
A
6 2 0 7 T R R E P O P M O D
= s i n g l e – p h a s e
Operation mode of TRIP repetition for single-phase
initiation
= single-phase
= three-phase
"
A
6 2 0 8 T – T R I P R E P
= . 1 2 s
Time delay for "Trip repeat"
minimum setting: 0.00 s.............
maximum setting: 1.0 s..............
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