| Breaking Capacity: | High Voltage Circuit Breakers |
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| Operation: | Manual Type |
| Speed: | Normal Type Circuit Breaker |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier | Product | Medium voltage SF6 load breaker switch |
| Rated voltage | 12KV, 24KV, 36KV |
| Rated current | up to 1250A |
| Breaking current | up to 31.5KA |
FL(R)N36-12(D) Load switches and combiners (hereinafter referred to as "load switches" and "combiners") are suitable for three-phase ac power systems of 10kV and 50Hz. This product as industrial and mining enterprises, high-rise buildings, residential quarters, pre-installed type substation, for the breaking, closing load current, the fault current, control and protection circuit and the power distribution transformer.
Normal operating conditions
a)Ambient air temperature is not more than 40 ºC, and at 24 h closed to the average no more than 35 ºC. Minimum ambient air temperature 25 ºC.
b)The effects of sunlight can be ignored
c)No more than 3000m above sea level.
d)Ambient air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, vapors, or salt fog. If the user does not have special requirements, the manufacturer may consider that these situations do not exist.e)The humidity conditions are as follows:
--The average relative humidity measured within 24h is no more than 95%.
--The mean value of water vapor pressure measured within 24h shall not exceed 2.2kPa.
--The average monthly relative humidity should not exceed 90%.
--The average monthly water vapor pressure does not exceed 1.8kpa. In such conditions appear condensation occasionally.
e) The vibration or ground motion from the outside of the switching equipment and the control equipment has no obvious relationship with the normal operation mode of the equipment. If the user has no special requirements, the manufacturer may not consider these situations.
GB 3804-2004 3.6KV~40.5KVHigh voltage ac load switch
GB 16926-2009 High voltage ac load switch fuse combination electrical appliance
GB 11023-1989 Test guide for fln36 gas seal of high pressure switching equipment
GB 1985-2004 High voltage ac isolation switch and ground switch
GB/T 11022-2011 Common technical requirements for high voltage switching equipment and control equipment standards
| Item NO. | Name | Unit | Technical parameters | |||
| Load break switch panel | ||||||
| 1 | Rated Voltage Un | kV | 12 | 24 | 36 | |
| 2 | Rated Frequency | Hz | 50 | 50 | 50 | |
| 3 | Rated Current | A | 630 | 630 | 630 | |
| 4 | Rated Load Breaking Current | A | 630 | 630 | 630 | |
| 5 | Rated Short Time Withstand Current(rms) | kA | 20 | 20 | 20 | |
| 6 | Rated Short Time Duration | s | 3 | 3 | 3 | |
| 7 | Rated Peak Withstand Current | kA | 50 | 50 | 50 | |
| 8 | Rated Closed Switch - Off Current | A | 630 | 630 | 630 | |
| 9 | Rated Cable Charging Breaking Current | A | 10 | 10 | 10 | |
| 10 | Rated Active Load Breaking Current | A | 630 | 630 | 630 | |
| 13 | Earthing Switch 2s Short Time Withstand Current | kA | 20 | 20 | 20 | |
| 14 | Rated Short-Circuit Current Making Times | times | 2 | 2 | 2 | |
| 15 | Rated Current Breaking Times | times | 10 | 10 | 10 | |
| 16 | Mechanical Endurance | Load Break Switch | times | 3000 | 3000 | 3000 |
| Earthing Switch | times | 2000 | 2000 | 2000 | ||
| 17 | SF6 gas anual leakage rate≤ | /year | 0.10% | 0.10% | 0.10% | |
| 18 | Rated Insulation Level | Unit | Technical parameters | |||
| 1min Power Frequency withstand voltage(rms) | On isolating distance | kV | 48 | 60 | 110 | |
| Phase to Phase | kV | 42 | 50 | 85 | ||
| Phase to Earth | kV | 42 | 50 | 85 | ||
| Lightning impulse withstand voltage(peak) | On isolating distance | kV | 85 | 145 | 215 | |
| Phase to Phase | kV | 75 | 125 | 185 | ||
| Phase to Earth | kV | 75 | 125 | 185 | ||
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