Our company's 10kV indoor HV switchgear and circuit breaker are series products developed on the basis of the original mature GZS1 switchgear. This product is used for indoor users, with a rated voltage of 10kV and a rated capacity of 25-40kA. This product has the characteristics of easy installation and high reliability.

Overview:

KYN28A-12 (Z) indoor armored removable AC metal-enclosed switchgear is a medium-voltage power distribution switchgear. It is suitable for three-phase AC 50Hz, 7.2~12kV single bus and single bus segmented power systems, used to receive and distribute electric energy, and control, protect and monitor circuits. The equipment fully meets the five electrical protection requirements and has passed the internal fault arc test and condensation pollution test.

 Application: 

Widely used in power plants, small and medium-sized generators, power distribution in industrial and mining enterprises, and secondary substations of power systems for receiving and transmitting power and starting large high-voltage motors, etc., for control, protection and monitoring.

Main features:

 The KYN28A-12 series switchgear consists of two parts: a cabinet and a central withdrawable component. The cabinet is divided into five independent compartments by partitions. The enclosure protection level is IP4X, and the protection level between each compartment is IP2X. The equipment is equipped with a VS1 vacuum circuit breaker or a fixed load switch in the trolley room. It can be installed, debugged and maintained from the front, so it can be arranged back-to-back in double rows and installed against the wall, which improves the safety and flexibility of the switchgear and reduces the floor space.

Technical data:

 Rated voltage: 12kV

 Rated frequency: 50Hz

 Rated current: 630, 1250, 1600, 2000, 2500, 3150, 4000A

 Rated insulation level: 1min power frequency withstand voltage 42kV; lightning impulse withstand voltage 75kV

 Rated short-circuit breaking current: 20, 25, 31.5, 40kA

 Rated short-circuit closing current (peak value): 50, 63, 80, 100kA

 Rated short circuit duration: 3s, 4s

 Dimensions (WxDxH) (mm): 800x1450(1750) x2240

 1000x1450(1750) x2240

 Note: The depth of the overhead inlet and outlet wires is in brackets. Forced air cooling is required for over 4000A

Implementation standards:

 GB/3906-91 3~35kV AC metal-enclosed switchgear and control equipment;

 GB/T11022-1999 Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards

 JB/T3855-1996   3.6~40.5kV Indoor AC High Voltage Vacuum Circuit Breaker;

 DL/T403-2000  Technical requirements for ordering 12~40.5kV high voltage vacuum circuit breakers

 DL/T404-1997 Technical Conditions for Ordering Indoor AC High Voltage Switchgear

 Conditions of use:

 Ambient temperature

 High temperature 40℃

 Low temperature -15℃

 Humidity:

 Daily average relative humidity: 95%

 Average monthly relative humidity: 90%

 Saturated vapor pressure: daily average value is not more than 2.2kpa, monthly average value is not more than 1.8kpa

 Earthquake intensity: no more than 8 degrees

 The surrounding air is not obviously polluted by corrosive or flammable gases, water vapor, etc. and can be used in an environment with vertical dripping water.

 Altitude not exceeding 1000m

 Ordering instructions:

 The following information should be provided when ordering;

 Primary system diagram and floor plan;

 Secondary schematic diagram, terminal arrangement diagram. If there is no terminal arrangement diagram, follow the manufacturer's terminal arrangement.

 Model, specification and quantity of electrical components of switch cabinet;

 Electrical Equipment Summary Table;

 When a busbar bridge is required (busbar bridge between two rows of cabinets and busbar bridge between wall cabinets), the span and height dimensions need to be provided.

 If the switch cabinet is used under special environmental conditions, this should be specified when ordering.

 If there are other special options, please specify them when ordering.