Electrical valve circuit apparatus

Details Electrical valve circuit apparatus Electrical valve circuit apparatus

1974-10-29

1976-10-05

Shoop, William M.

321 2, 321 27R, H02M 7515

Patent

active

039847527

ABSTRACT:
An electrical valve circuit apparatus which comprises an electrical valve circuit comprising a plurality of main control electrical valves operationally connected between a main DC circuit system and a main AC circuit system, at least one pair of commutating arms composed of at least two main control electrical valves for sequentially commutating the current, at least one arm of the group of commutating arms is an auxiliary DC circuit system, and an auxiliary electrical valve apparatus and an auxiliary power source connected in series to the auxiliary DC circuit system.

REFERENCES:
patent: 3710215 (1973-01-01), Johnston

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