KYN28A-12(Z)(GZS1)metalclad AC enclosed switchgear withdrawable type(hereinafter called switchgear for short) is applicable in the power system of three phase AC 50 Hz, which is used to accept and distribute power as well as controlling, protecting, and monitoring the circuit.
The switchgear conforms to the following standard: GB3960 "3.6~40.5KV metalclad AC enclosed switchgear and controlgear", GB/T11022 "Common specifications for high-voltage switchgear and controlgear standards", IEC62271: 200 "AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and below 52kv", DL/T404 "Ordering specification of Indoor AC high-voltage switch cabinet".

Working Conditions
1. Ambient temperature: - 10()~+40()
2. Humidity: Daily average <<95%, Daily average of water vapor pressure << 2.2Kpa;
Monthly average<< 90%, Monthly average of water vapor pressure << 1.8Kpa
3. Altitude: << 1000m
4. Earthequake intensity: << magnitude 8
5. Applicable in the places without corrosive, flammable gas and water vapor.
6. With no frequently intense vibrant place around
7. If without the normal working condition stipulated by GB3906, customizd products are available on your requirements.

Ordering Information
The following information should be specified:
1, The serial number of the main wiring scheme drawing, purpose and single-cable system diagram, rated voltage, rated voltage, rated current, rated short-circuit breaking current, the layout chart of the electric distribution room, the array layout chart of the switch cabinet.
2, The requirement of controlling\measuring and protecting of switch cabinet, as well as other requirement of close-lock and automatic system.
3, The type\specification and quantity of the main electric elements of the switch cabinet.
4, If the busbar-bridge connection between the switch cabinet or in-cable cabinet is needed, the detailed data such as rated current capacity of the busbar-bridge, the span and height, etc should be applied.
5, If the switch cabinet is used to special surrounding, it must be declared when ordering.
6, Other special requirements.