High-voltage direct current interuption devices

Details High-voltage direct current interuption devices High-voltage direct current interuption devices

1978-09-25

1980-04-15

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Arc suppression at switching point

361 9, 361 13, 361 58, H02H 722, H01H 3359

Patent

active

041986687

ABSTRACT:
a spark gap device in a high-voltage direct current interrupting device maintains a substantially constant ignition voltage by constructing the spark gap device in at least two series-connected main spark gaps connected in parallel with a voltage divider for distributing the voltage across the main spark gaps. An ignition voltage-determining auxiliary gap is connected in series with an impedance connected in parallel with one or more of the main spark gaps to effect a continued ignition thereof. The ignition voltage of the high-voltage direct current interrupting device is determined by the auxiliary gap such that the auxiliary gap is not subjected to appreciable wear whereby the variations of the ignition voltage are relatively small and not influenced by the wear of the main spark gaps.

REFERENCES:
patent: 2862152 (1958-11-01), Ryden
patent: 2878428 (1959-03-01), Bockman et al.
patent: 3198986 (1965-08-01), Luehring et al.
patent: 3522472 (1970-08-01), Breitholtz
patent: 3809959 (1974-05-01), Pucher
patent: 4028592 (1977-06-01), Fahlen et al.

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