How does the "five-prevention" function of switchgear specifically achieve through mechanical or electrical interlocks?
Prevention of incorrect opening/closing of circuit breakers:Mechanical interlock: The operating handle must be inserted into a specific position and operated in sequence, directly restricting incorrect opening/closing.Electrical interlock: The closing circuit of the circuit breaker is connected in series with the auxiliary contact of the disconnector. Closing is prohibited if the disconnector is not fully closed.Prevention of load-breaking operation of disconnectors:Mechanical interlock: The ope
