The Phenomena of Bursts by Opening Low-Voltage Relay

The article deals with the issue of electromagnetic disturbances caused by electromechanical relays. Electromagnetic compatibility (EMC) is important for reliable work electrical and electronic devices. Our research focused on low-voltage relay, which source fast transients (EFT)/burst disturbances. voltage current waveforms were tested constructed stand while opening relays’ contacts. We investigated one-circuit topology varied element parameters in order to observe their influence burst phenomenon. new technologies measurement equipment allow us many detailed aspects phenomenon, not reported up now. In analyze disturbances, they have been fragmented into restoration, ignition arc times. number disturbance cycles differs depending value circuit capacitance load side. effect capacity times burning was also observed. division allowed changes studied phenomenon along increased distance between relay contacts during its opening. There discrepancies presentation standard defining method measuring resistance interference EFT/burst results.