EP 0103950 B1 19860709 - METHOD OF PROTECTING A THYRISTOR SWITCH OF A PULSE GENERATOR FOR AN ELECTROSTATIC PRECIPITATOR
Title (en)
METHOD OF PROTECTING A THYRISTOR SWITCH OF A PULSE GENERATOR FOR AN ELECTROSTATIC PRECIPITATOR
Publication
Application
Priority
GB 8221806 A 19820728
Abstract (en)
[origin: EP0103950A2] To protect a thyristor switch in a pulse generator for an electrostatic precipitator it is desirable to control the spark-over rate in the precipitator. A first spark-over starts a measurement of the difference between the number of spark-overs and the number of times a pre-selected cooling period (pk) has passed after the first spark-over and the measurement is stopped when the difference becomes 0. The measurement is started again the next time a spark-over occurs and one or more relevant running parameters of the precipitator are influenced in such a way as to diminish the probability of a further spark-over when the difference exceeds a given value.
IPC 1-7
IPC 8 full level
H03K 3/53 (2006.01); B03C 3/68 (2006.01); H03K 17/73 (2006.01)
CPC (source: EP)
B03C 3/68 (2013.01)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0103950 A2 19840328; EP 0103950 A3 19840926; EP 0103950 B1 19860709; AU 1714083 A 19840202; BR 8304022 A 19840307; CA 1211783 A 19860923; DE 3364432 D1 19860814; DK 328683 A 19840129; DK 328683 D0 19830718; ES 524473 A0 19841116; ES 8501250 A1 19841116; JP S5981919 A 19840511; NO 832711 L 19840130; ZA 835218 B 19840328
DOCDB simple family (application)
EP 83304133 A 19830715; AU 1714083 A 19830721; BR 8304022 A 19830727; CA 433303 A 19830727; DE 3364432 T 19830715; DK 328683 A 19830718; ES 524473 A 19830727; JP 13867583 A 19830728; NO 832711 A 19830725; ZA 835218 A 19830718