| Customization: | Available |
|---|---|
| Certification: | CCC, ISO9001 |
| Voltage Level: | Low Voltage |
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Air insulated switchgear is the latest generation of ring network switchgear, and it is also the new equipment promoted by the State Grid after solid insulated switchgear. Its patented design retains the traditional SF6 gas insulated and epoxy resin solid insulated switchgear on the basis of small size and high electrical performance.
The ambient air temperature shall not exceed 40ºC, and the average value measured within 24 hours shall not exceed 35ºC, and the minimum shall not be lower than -15ºC;
The altitude does not exceed 1000m;
Humidity Condition Relative humidity: The daily average is less than 95%, and the monthly average is less than 90%.
Water vapor pressure: daily average does not exceed 2.2kPa, monthly average does not exceed 1.8kPa.
The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors or salt spray.
When the ring cabinet is installed at an altitude higher than 1000m, the customer should negotiate with the manufacturer about the factory conditions and ask for the relevant test report;
When the maximum ambient temperature exceeds 40 ° C, the rated current carrying capacity of the ring cabinet must be reconfirmed by the manufacturer when ordering.
Upper and lower two isolation switches
Isolating switch electrically operated
The vacuum interrupter is combined with the upper and lower isolation switch to form a solid sealing pole
| Name | Unit | Data | |
| Rated voltage | kV | 12 | |
| power frequency withstand voltage(phase to phase,to earth) | kV | 42 | |
| power frequency withstand voltage(open contact) | kV | 48 | |
| lightning impulse withstand voltage(phase to phase,to earth) | kV | 75 | |
| lightning impulse withstand voltage(open contact) | kV | 85 | |
| Rated frequency | Hz | 50 | |
| Rated current of main bus | A | 630 | |
| Rated current of branch loop | Circuit breaker, load switch | A | 630 |
| Load switch + fuse combination appliance | 125 | ||
| Rated short-time withstand current (including load switch) | kA | 20,25 | |
| Rated peak withstand current (including load switch) | kA | 50,63 | |
| Rated short circuit duration | s | 4 | |
| Protection class (Enclosure/compartment) | IP64/IP54 | ||
| Operational continuity classification | LSC2B-PI | ||
| IAC class (including circuit breaker room, cable room, bus room) | BFLR,20kA,0.5s | ||
| Static load | kg | 150~200 | |
| Live load | kg | 300~500 | |
| Overall dimensions of switchgear (W×H×D) | mm | 450×1800×800 | |
| The hyperbaric chamber is subjected to pressure at altitudes above 1000m | MPa | 0.05 | |
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