FIELD: instrumentation engineering.
SUBSTANCE: proposed device designed for detecting faulty outgoing line of 6- 10 kV insulated-neutral network on occurrence of single-phase ground fault in this network makes it possible to tune away from aperiodic component of singe-phase ground fault process, to eliminate malfunction during damped oscillations of zero-sequence current and voltage signals, and to save information about faulty line number. Device also provides for resetting zero-sequence current and voltage phase comparison element in preset time upon elimination of single-phase ground fault.
EFFECT: enlarged functional capabilities of device.
1 cl, 1 dwg
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