12kV Metal Clad Withdrawable Switchgear

1. General KYN28A-12 12kV Metal Clad Withdrawable Switchgear is applicable for AC 3ph, 3.6 kV12kV, 50/60Hz single busbar distribution sub-system,, mainly for the power inputting & feeding, protection and monitoring of power plant, transformer station, mining & industrial enterprises. Product features: Vacuum circuit breaker with embedded poles can be selected from imported or joint ventures products such as VD4, HVX, VB2, RAV, VEP, etc, or inland products as VS1, TZN1. Cubicles are made of aluminum-plated zinc sheets. Metallic wire slots, arc and electromagnet proof. Pressure release channel available for each compartment. Busbar cubicles are isolated by bushes to restrict the spreading of malfunction if possible. Totally metallic structure, totally separated compartments. All operation is carried out while the doors closed. Strong density of enclosure to prevent the intruding of creature or other objects if possible, with protection class IP4X. Simple and complete locking design to prevent mis-operation. Totally exchangeable contactor-fuse combination handcart. Grounding switch for earthing and loop short circuit. Easily monitoring inside of cable compartment through observation window on the panel. Nice outlook, well designed and compact structure. Installation against the wall, maintain on site, saving the ground. Novel permanent mark and nameplate. Widely used in various environment. 2. Normal Service Condition Ambient temperature: -25 + 40 Altitude: ≤ 1000m Relative humidity: daily average relative humidity ≤ 95% monthly average relative humidity ≤ 90% Free from fire, explosion, heavy pollution, chemical corrosion and severe vibration. The earthquake intensity ≤ 8 degree If the service condition differs from the above , the user should consult it with manufacturer. 3. Configuration ApparatusTypeManufacturerCircuit breakers VD4ABBEVOLISSCHNEIDERHVXAREVATZNHTELLHOWProtection device REFABBSPAMSCHNEIDERMACOM-PAREVATH9140TELLHOWCurrent transformersIECABBLZZBJDALIAN NO.1LZZBJDALIAN NO.2Voltage transformersIECABBJDZDALIAN NO.1JDZDALIAN NO.2Earthing switches EK6ABBJN15YUFENGCabinet body KYN 28A -12TELLHOW