KYN61-40.5 Withdrawable metal-clad & metal-enclosed switchgear

KYN61-40.5  withdrawable metal-clad & metal-enclosed switchgear is suitable for three-phase AC 50 Hz, 40.5 kV Single Bus segmented power system. It is mainly used in power plants, substations, industrial and mining enterprises, high-rise buildings for receiving and distributing electric energy, and controlling, protecting and monitoring the circuit.(can be expanded to intelligent devices).Item numberprojectunitparameter1rated voltagekV40.52rated frequencyHZ503Rated insulation levelLmin power frequency withstand voltage (rms)kVPhase to phase, phase to phaseIsolation fractureLightning impulse withstand voltage (peak value)95115185215Auxiliary control circuit lmin power frequency withstand voltageV20004rated currentA1250，1600，2000，2500 ,5Rated short circuit breaking currentKA25，31.56Rated short-circuit closing current (peak value)KA63，807Rated short-term withstand current (4S)25，31.58Peak withstand current63，809Rated voltage of auxiliary control circuitVAC/DC 110/22010the protection gradesmmIP4XC (when the door of the circuit breaker room is opened or the compartment is IP2X)11Dimensions (width x height x depth)1400x2600x280012qualitykg850-1850