Protection apparatus for a capacitor connected in series with an

Details Protection apparatus for a capacitor connected in series with an Protection apparatus for a capacitor connected in series with an

1975-01-24

1976-03-16

Miller, J. D.

Electricity: circuit makers and breakers

Multiple circuit control

Pivoted contact

317 16, 200148G, 317 11D, H02H 716

Patent

active

039448860

ABSTRACT:
A protecting apparatus for a series capacitor in an AC power circuit includes an enclosure filled with a low pressure insulating gas. A discharge gap device, a bypass switch for the series capacitor and an electromagnetic repulsion device for closing the bypass switch in response to the discharge of the series capacitor are assembled in the enclosure in alignment with each other. A metallic cylinder is provided around the assembly forming a return path for the capacitor discharge current to cooperate with the gap device and its support. In this way, the impedance of the capacitor discharge passage can be effectively reduced to permit rapid removal of excess terminal voltage from the series capacitor.

REFERENCES:
patent: 2323702 (1943-07-01), Berkey
patent: 2351988 (1944-06-01), Marbury et al.
patent: 3385941 (1968-05-01), Marbury
patent: 3751716 (1973-08-01), Johnson et al.

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