Method for short interruption at high voltage line, involves generating opening signal for opening circuit breaker so that high voltage conductor is disconnected from mains, and starting measurement of pause time

摘要

The method involves determining an actual fault distance between a fault location of the fault to the high voltage conductor afflicted with the fault and to the protection apparatus (1). An opening signal is generated for opening a circuit breaker (8) so that the high voltage conductor is disconnected from the mains, and the measurement of pause time is started. The voltage and the current on the other non-faulty high-voltage conductors are measured. Independent claims are included for the following: (1) a protection apparatus with a processor unit for controlling a circuit breaker switched in a high voltage conductor of a high voltage line; and (2) a protection device for a high voltage line.