7SR210 & 7SR220 Description of Operation
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Operation of the time delayed earth fault elements can be inhibited from: -
Inhibit 51N-n
A binary or virtual input, function key or remote data Comms.
79 E/F Inst Trips:
51N-n
When ‘delayed’ trips only are allowed in the auto-reclose sequence
(
79 E/F Prot’n Trip n
=
Delayed
).
51N-n Inrush Action:
Inhibit
Operation of the current inrush detector function.
51N-n VTSAction:
Inhibit
Operation of the VT Supervision function (7SR22).
Figure 3.3.3-1
Logic Diagram: Derived Time Delayed Earth Fault Protection
Содержание Argus 7SR21
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