Method and arrangement for protecting a thyristor switch of a pu

Details Method and arrangement for protecting a thyristor switch of a pu Method and arrangement for protecting a thyristor switch of a pu

1982-05-20

1985-03-05

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

361 6, 361 91, 361235, H02H 709

Patent

active

045034770

ABSTRACT:
A method and apparatus for protecting switching elements, and, in particular, thyristor switching elements, which are used in a pulse generator to supply pulsed electrical voltage to a capacitive load, from damage resulting from a spark-over occurring in that load are described. Specifically, whenever the occurrence of a spark-over is detected, during, for example, the interval of time when a voltage pulse applied across the load is decaying, a trigger pulse is applied by a firing circuit to the thyristors to cause them to assume a substantially conductive state.

REFERENCES:
patent: 3865438 (1975-02-01), Boksjo et al.
patent: 3881147 (1975-04-01), Ueda et al.
patent: 3943419 (1976-03-01), Thiele
patent: 4052177 (1977-10-01), Kide
patent: 4238810 (1980-12-01), Stevenson et al.
patent: 4282014 (1981-08-01), Winkler et al.
patent: 4313156 (1982-01-01), Kobayashi et al.
patent: 4325114 (1982-04-01), Kobayashi et al.

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