Circuit for compensating harmonic currents in an electric...

Details Circuit for compensating harmonic currents in an electric... Circuit for compensating harmonic currents in an electric...

H - Electricity

03

H

323/30, 333/73

H03H 7/06 (2006.01) H02J 1/02 (2006.01) H02J 3/36 (2006.01) H02M 1/14 (2006.01) H03H 7/01 (2006.01)

Patent

CA 1100200

ABSTRACT OF THE DISCLOSURE To improve the effect of a filter circuit for the harmonics, which contains an L-C-R series resonant circuit in at least one loop, a variable supplementary current excitation which compensates the residual harmonic current in the consumer arrangement at least approximately, is coupled into the series resonant circuit, the supplementary current excitation preferably being supplied by a compensation transformer which is controlled by the current in the loop, the compensation transformer being excited by a source and controlled by an auxiliary transformer arranged in the loop.

300848

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