Electrostatic precipitators

Details Electrostatic precipitators Electrostatic precipitators

1983-04-20

1985-12-10

Wong, Peter S.

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

363 68, 323903, 315209CD, 55105, H02P 1324

Patent

active

045584044

ABSTRACT:
A circuit for applying unidirectional pulses to a precipitator, in addition to a base d.c. level supplied by a transformer/rectifier set, includes a rectifier, an inverter and a transformer/rectifier set connected to charge a storage capacitor. Discharge of the capacitor into the precipitator is controlled by a chain of unidirectionally conducting devices (thyristors as shown) which are simultaneously triggered at the desired voltage at the capacitor. In other embodiments breakover diodes are used instead of the thyristors.

REFERENCES:
patent: 3443358 (1969-05-01), Drenning et al.
patent: 3596133 (1971-07-01), Warren et al.
patent: 4084221 (1978-04-01), Ogata
patent: 4296358 (1981-10-01), Bernier
patent: 4308494 (1981-12-01), Gelfand et al.
patent: 4367418 (1983-01-01), Faust et al.
patent: 4485428 (1984-11-01), Harris

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