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Product overview
Our company can produce voltage class range of 1-40.5kV and below the product. The product is a complete set of poweldistribution device composed of high voltage circuit breaker, load switch, contactor, high voltage fuse, isolation switchground switch, transformer and station transformer, as well as control, measurement, protection, regulation device, internal connector, auxiliary shell and support parts. The cabinet structure is assembled by bending and welding steel platesand the protection level is lP2X. The upper part of the cabinet is the bus bar room, and the instrument room is located inthe front ofthe bus bar room and is separated by steel plates. The middle part ofthe cabinet is a switch room, and an insulating partition is arranged between the switch and other components.
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
| item | Unit | Parameters |
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current of main busbar/Max rated current of fuse | A | 630/125 |
| Rated short time withstand current of main circuit and earth circuit | kA/s | 20/3 |
| Rated peak withstand current of main circuit and earth circuit | kA | 50 |
| Rated short-circuit making current of main circuit and earth circuit | kA | 50 |
| The opening times of the load switch with full capacity | time | 100 |
| Fuse breaking current | kV | 31.5840 |
| Rated closed loop breaking current | A | 630 |
| Rated transfer curent | A | 1600 |
| Mechanlcal ife | time | 2000 |
| 1min power frequency withstand voltage(peak value)between phases,phase and earth/phase andsolation fracture | kV | 42/48 |
| Lighting impulse withstand voltage(peak value)between phases,phase and earth/phase and isolation fracture | kV | 75/85 |
| Secondary loop 1min power frequency withstand voltage | kV | 2 |
| Protection leve | IP3X | |
