ZHANG Huan, LI Zhen-biao, ZHENG Bi-cheng, et al. Welding Phenomenon of a Relay in the End of Lifetime During Breaking Period[J]. High voltageapparatus, 2009, 45(3): 117-119.
ZHANG Huan, LI Zhen-biao, ZHENG Bi-cheng, et al. Welding Phenomenon of a Relay in the End of Lifetime During Breaking Period[J]. High voltageapparatus, 2009, 45(3): 117-119.DOI:
Welding is one of the worst faults for an electromagnetic relay.In order to find out the variation rule of arc duration in breaking period before welding
a large number of electrical contact experiments on both commercial relay and simulation test device under different voltages were conducted.The results show that welding may occurs randomly or suddenly
and predicting welding moment only according to arc duration in breaking period is difficult.Welding can take place in a relay either during closing period