A HIGH-POWER HIGH-VOLTAGE PULSE-GENERATOR BASED ON REVERSE SWITCH-ON DYNISTORS FOR AN ELECTROSTATIC PRECIPITATOR POWER-SUPPLY

A high-power generator supplying an electrostatic precipitator with hi gh-voltage pulses of 26-kV peak value, 3.5-mu s in width, and 100-Hz m aximum repetition rate, imposed on a de (base) voltage, is described. The generator includes a low-voltage unit with a switching element bas ed on a high-current reverse switch-on dynistor (RSD), a step-up trans former with a saturable core, a high-voltage magnetic compression unit , a feedthrough capacitor blocking the de voltage of the precipitator and a unit for the pulse charge energy regeneration of the electrostat ic precipitator capacitor, The generator was tested during smoke purif ication in a high-power electrostatic precipitator with an operating c apacity of similar to 50 nF and a de voltage of similar to 50 kV.