Lossy triphase low-pass filter

摘要

The invention relates to a lossy triphase low-pass filter having a filter choke, a filter capacitor, and an attenuation element per phase of said the low-pass filter, wherein one filter capacitor and one attenuation element each are electrically connected in series. Two diodes are provided as attenuation elements, which are electrically connected to each other in an anti-parallel manner. In this manner a lossy triphase low-pass filter is obtained, the power loss of which is significantly reduced without any loss of the attenuation effect.

主权项

1. A lossy triphase low-pass filter, each phase comprising:
a filter inductor connected in-line between a triphase AC power source and a triphase AC load, and a filter capacitor connected with a first terminal to the corresponding phase, a six-pulse diode bridge circuit having triphase input AC terminals and DC output terminals, with each input AC terminal connected to a second terminal of the filter capacitor in each phase in one-to-one correspondence, and with the DC output terminals terminated by means of a 2-terminal DC current-conducting attenuation element constructed as a DC electrical load.