| Customization: | Available |
|---|---|
| Certification: | CCC, ISO9001 |
| Voltage Level: | Low Voltage |
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Unit-type AC metal closed ring switchgear (hereinafter referred to as ring cabinet) is a new generation of high-voltage electrical appliances that we have successfully designed and developed by ourselves in accordance with the requirements of domestic agricultural power and urban network transformation.
Ambient temperature: upper limit +40ºC, lower limit -25ºC;
Altitude: No more than 2000m above sea level;
Relative temperature: the daily average is not more than 95%; The monthly average is not more than 90%;
Surrounding environment: The surrounding air is not exposed to corrosive gases or flammable gases, water vapor, etc
Show pollution.
No frequent violent vibration.
The busbar room is located at the top of the cabinet and is connected to the adjacent switchgear
Independent load switch with SF6 gas inside
75% of the space is used for cable connections, fuses, ground switches and CT and PT installations
| Name | Unit | Data |
| Rated voltage | kV | 12 |
| Rated frequency | Hz | 50 |
| Rated current of main bus/Maximum rated current of fuse | A | 630/125 |
| Rated short-time withstand current of main circuit and ground circuit | kA/S | 20/3 |
| Rated peak withstand current of main loop and ground loop | kA | 50 |
| Rated short-circuit closing current of main circuit and ground circuit | kA | 50 |
| Number of times the load switch is broken at full capacity | Times | 100 |
| Fuse breaking current | kA | 31.5,40 |
| Rated closed-loop breaking current | A | 630 |
| Rated transfer current | A | 1600 |
| Mechanical life | Times | 2000 |
| 1min power frequency withstand voltage (peak)to phase,to earth/between open contacts | kV | 42/48 |
| Lightning impulse withstand voltage (peak))phase to phase,to earth/between open contacts | kV | 75/85 |
| Secondary circuit 1min power frequency voltage | kV | 2 |
| Class of protection | IP3X |
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