101
Line differential protection (DIFL)
&KDSWHU
9HULI\LQJVHWWLQJVE\VHFRQGDU\
LQMHFWLRQ
7HVW7HVW0RGH'LVWXUE5HSRUW
$FWLYDWHWKHWULSE\VHWWLQJ5HOHDVHORFDO
This command is found in the menu under:
7HVW7HVW0RGH'LIIHUHQWLDO
This command must be saved in order to be activated. Observe that
the command
5HOHDVH/RFDO
will allow the trip outputs to be acti-
vated during the tests.
,QMHFWDFXUUHQWLQ/DQGLQFUHDVHWKHFXUUHQWXQWLORSHUDWLRQ
LQSKDVH/DQG/WDNHVSODFH
The injected operation value must correspond to the set IMinOp·
Ir·CTFactor. This value is to be read as IDiffL1 and IDiffL2, and
50% of IDiffL1 as IBiasL1 and IBiasL2. The IDiffL3 should be
zero and IBiasL3 25% of IDiffL1. These values are read on the
HMI under:
6HUYLFH5HSRUW)XQFWLRQV'LIIHUHQWLDO'LII9DOXHV
5HSHDWVWHS
The result shall be transposed one, respectively two steps.
,QMHFWDV\PPHWULFDOWKUHHSKDVHFXUUHQWDQGLQFUHDVHWKH
FXUUHQWXQWLORSHUDWLRQLVDFKLHYHGLQDOOWKUHHSKDVHV
The IMinOp·Ir·CTFactor value shall be obtained for operation and
read for I
Diff
in all three phases. 100% of I
Diff
shall be read for I
Bias
in all three phases.
5HDGWKHWUDQVPLVVLRQGHOD\RQWKH+0,
This command is found in the menu under:
6HUYLFHYDOXH)XQFWLRQV'LIIHUHQWLDO'LII&RP&RP,QIR
This delay is not allowed to exceed 12 ms.
Содержание REL 531
Страница 16: ...10 Note signs KDSWHU 6DIHW LQIRUPDWLRQ ...
Страница 44: ...38 Checking the binary I O circuits KDSWHU KHFNLQJ WKH H WHUQDO FLUFXLWU ...
Страница 52: ...46 Checking the self supervision signals KDSWHU QHUJLVLQJ WKH WHUPLQDO ...
Страница 132: ...126 Two step time delayed phase overcurrent protection TOC2 KDSWHU 9HULI LQJ VHWWLQJV E VHFRQGDU LQMHFWLRQ ...
Страница 136: ...130 Testing the interaction of the distance protection KDSWHU 9HULI LQJ WKH LQWHUQDO FRQILJXUDWLRQ ...
Страница 140: ...134 Testing the interaction of the distance protection KDSWHU 7HVWLQJ WKH SURWHFWLRQ V VWHP ...