Grounding arrangement for a powerline system

Details Grounding arrangement for a powerline system Grounding arrangement for a powerline system

1998-06-30

1999-07-27

Leja, Ronald W.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With space discharge means

361111, H02H 720

Patent

active

059300990

ABSTRACT:
A grounding arrangement for a normally ungrounded multi-phase powerline system, which also carries dc information signals. A resistance and a spark gap device are provided in a path between system neutral and a ground. Upon the occurrence of a predetermined fault condition the spark gap device will conduct, and if the voltage developed across the resistance is of a predetermined value, a current bypass path is established around the spark gap device after a predetermined time delay.

REFERENCES:
patent: 3611044 (1971-10-01), Osterhout et al.
patent: 4157535 (1979-06-01), Balkanli
patent: 4602240 (1986-07-01), Perkins et al.
patent: 4628398 (1986-12-01), Cook
patent: 4912589 (1990-03-01), Stolarczyk
patent: 5515038 (1996-05-01), Smith
patent: 5555150 (1996-09-01), Newman, Jr.

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