Power converter

Details Power converter Power converter

1983-06-27

1985-04-16

Wong, Peter S.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 68, 361124, H02H 7125

Patent

active

045119570

ABSTRACT:
A power converter adapted for use in a high-voltage circuit and equipped with a plurality of arms each comprising a plurality of thyristor elements connected in series, wherein an overvoltage limiter having an overvoltage limiting element and means for short-circuiting the ends of the overvoltage limiting element in response to flow of a load current therein are connected between the anode and the cathode of each thyristor element. The short-circuiting means has a gap between the two electrodes connected respectively to the anode and the cathode of each thyristor element, and also a metal layer of a low melting point which is molten by heat generated due to the flow of a load current in the overvoltage limiting element to fill the gap.

REFERENCES:
patent: 4132915 (1979-01-01), Wilms
patent: 4191987 (1980-03-01), Coren
patent: 4282568 (1981-08-01), Kobayashi et al.

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