Medium Voltage Withdrawable Switchgear

Product Characteristics

KYN28A-12 metal-clad withdrawable switchgear (hereinafter as”switchgear”)is a necessary indoor powerdistribution equipment 3-phase AC 50Hz.It is mainly used to receive and distribute 3-24kV network electricaland control protection and monitoring to line circuit.Relay chamber panel can installin various types ofmicro-processor based relay protection device ,and can realize the intelligent control system,with remotecontrol,telemetry,remote communication and remote transfer function,through the communication interfacewith field bus control network to prevent the mis-operation of circuit breaker,to prevent pushing and pullinghandcart with load,to prevent grounding switch closed with charged,to prevent the grounding switch in thegrounding position transmission and to prevent into live space,which is referred to as the “five-anti”function.The cabinet is equipped with VS1 (ZN63),ZN12v vacuum circuit breaker,also can be equipped with importedVD4 vacuum circuit breaker andVC seriesvacuum contactor.

The  switchgear  meets  the requirements of standard IEC62271-200,IEC62271-100 etc.

Service Conditions：

1.Ambient temperature:-10℃~+40℃;

2.Altitude:Not exceed 1000m above sea level;

3.Ambient humidity:Daily average RH≤95%;Monthly average RH≤90%

4.Water vapor pressure:Daily average RH≤2.2kPa;Monthly average RH≤1.8kPa.The products applyto the following two conditions more severe than normal.(1)Condensation not frequently(averagemonthly not more than two times)with mild pollution;(2)There is no condensation(average yearlynot more than two times)with serious pollution;

5.No violent vibration,bumps and vertical gradient not more than 8°of place.

Main Technical Parameters