| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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The live tank can protect and control the electric equipment for power supply and transformer substations,especially suitable for ring net cabinet,cable branch cabinet and distribution switch substation.It complies with standards of GB,IEC.With its small volume,it is convenient to install and operate.
Ambient temperature: maximum temperature :+40ºC; Minimum temperature :-35ºC
Humidity: maximum average relative humidity daily average :≤95%; Monthly average :≤90%
Altitude :≤2000 meters;
Seismic capacity :8 degrees;
The surrounding air should be free from corrosive, flammable gas, water vapor and other obvious pollution, there should be no frequent violent vibration.
Annual leakage rate :≤0.1%.
| Item | Unit | Data | |
| FLN48-12D/T630-20 | FLRN48-122D/125-50 | ||
| Rated voltage | KV | 12 | 12 |
| Rated frequency | Hz | 50 | 50 |
| Rated current | A | 630 | 125 |
| 1 min power frequency withstand voltage | KV | 42/48 | 42/48 |
| Lighting impulse withstand voltage(PEAK) | KV | 75/85 | 75/85 |
| 5 min zero gauge rated power frequency withstand voltage | KV | 24 | 24 |
| Rated thermal stability current(peak) | KA | 20/20 | 20/20 |
| Rated dynamic current(peak) | KA | 50/50 | 50/50 |
| Rated short circuit closing current | KA | 50/50 | 125/50 |
| Rated closed-loop breaking current | A | 630 | |
| Rated active load breakina current | A | 630 | |
| Rated cable charging breaking current | A | 10 | 10 |
| Rated short circuit breaking current | KA | 50 | |
| Rated transfer current | A | 1700 | |
| Fuse type | XRNT-12KV/100A | ||
| Fuse strikes the output energy | J | 1±0.5 | |
| Mechanical life | Time | 5000/2000 | 3000/2000 |
| The insulation distance betweent the live body and the around | mm | >=125 | >=125 |
| SF6 Gas pressure (relative pressure at 20°C) | bar | 0.4 | 0.4 |
| Closing the same period | ms | ≤2 | ≤2 |
| Main circuit tesistance | μΩ | ≤65 | ≤65 |
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