Switchgear includes various switching devices such as switches, circuit breakers, off-load isolators, contactors, switch fuse units, HRC fuses, ELCBs, miniature circuit breakers, GFCIs etc. It also comprises the grouping of these switching devices with measuring, associated control, protecting and regulating apparatus. The switchgear devices and their assemblies are put to use in connection with the generation, transmission, delivery, and conversion … Continua a leggere→