Abstract
A hybrid circuit breaker comprises power semiconductor devices and a varistor connected in parallel with an electrical contact. In this study, we use SiC-MOSFET and the contact made from tungsten for hybrid DC circuit breaker to implement arcless commutation. We conducted current commutation experiment at the condition of DC 50 V, 150 A. As a result, contact erosions which have a depth of several tens of micrometer are observed in the case of commutation by arc discharge for a few microseconds. In contrast, the erosion was not observed completely in the case of arcless commutation.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
