The tap-changing mechanism and current-carrying contacts are designed to provide exceptional reliability and long service life exceeding one million mechanical operations. The tap changer uses an electric motor, gear train, and spring drive to provide quick, reliable operation.
RWK-381 outdoor SF6 load break switch controller (auto sectionalizer) is a kind of switch which must cooperate with superior switch. It cannot cut off the fault current, it only trip when the line is low-voltage or no-current.
Rockwill RWK outdoor auto recloser controller is medium voltage overhead line grid monitoring unit, It can be equipped with RCW(ER) type vacuum circuit breaker for achieving automatic monitoring, fault analysis and event records.