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Our company can produce this product with a voltage class range of 1-40.5kV and below.The KYN series switchgear is an armored withdrawable AC metal-enclosed switchgear. It is suitable for a three-phase AC 50Hz power system, used for receiving and distributing electrical energy, and implementing control, protection, and monitoring of the circuit.
The main models are KYN28A-12, KYN28A-24, and KYN61-40.5. It can be equipped with various indoor vacuum circuit breakers and can be installed with microcomputer protection as a combined electrical appliance to achieve remote measurement,remote control, remote signaling, and unattended operation. It is mainly used for power transmission of small and medium-sized generators in power plants, power distribution in industrial and mining enterprises, station service transformers in the power system,power distribution in high-rise commercial centers and residential areas, for implementing control, protection, and monitoring.
For the KYN28A-12 and KYN28A-24 series switchgear, the switchgear as a whole is composed of two major parts: the cabinet body and the center-mounted withdrawable components (i.e., the circuit breaker carriages). The cabinet body is divided into four separate compartments. The protection level of the outer shell is IP4X, and the protection level when the doors ofeach compartment and the circuit breaker compartment are open is IP2X.
It has overhead incoming and outgoing line, cable incoming and outgoing line,and other functional schemes. After being arranged and combined, it forms a complete set of power distribution system equipment. This switchgear can be installed,debugged, and maintained from the front. Therefore, it can be installed back-to-back, in double rows, and against the wall, which improves the safety and flexibility of the switchgear and reduces the occupied area.
Enforce standards
IEC 62271 《High Voltage Switchgear and Control Equipment》
GB/T11022 《High Voltage Switchgear and control equipment standard common technical requirements》
Type description
Normal service condition
Ambient air temperature: -15℃~+40℃
Altitude: 1000m and below
Relative humidity: The daily average relative humidity is not more than 95%, and the monthly average relative humidity is not more than 90%.
Seismic intensity：Not exceeding 8 degrees
Places without fire, explosion hazards, serious pollution, chemical corrosion and severe vibration
Performance parameter
| Name | Unit | Data | |
| Matched circuit breaker | |||
| ZN63A-12(VS1) | VD4 | ||
| Rated voltage | KV | 12 | 12 |
| 1min power frequency withstand voltage | kV | 42 | 42 |
| Rated impulse withstand volage(peak) | kV | 75 | 75 |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 630,1250,1600,2000,2500,3150,4000,5000 | |
| Rated current of branch busbar | A | 630,1250,1600,2000,2500,3150,4000,5000 | |
| Rated short-time withstand current (virtual value) | kA | 16,20,25,31.5,40,50 | 16,20,25,31.5,40,50 |
| Rated peak withstand current | kA | 40,50,63,80,100,125 | 40,50,63,80,100,125 |
| Rated short circuit duration | S | 4 | |
| Protection level | The sell is IP4X and it is IP2X when the compartment door andhandcart door is opened | ||
| Weight | kg | 700-1200 | 700-1200 |
