Load switch of YFC-12KV-630A complies with the technical requirements of GB3804-2004″High-voltage alternating-current switches for rated voltage above 3.6KV and up to and including 40.5KV”and GB16926-1997″High-voltage alternating current switch-fuse combinations”.
Major loop:630A-20KA(4s);25KA(3s);Mechanical life:5000 times.
Ground loop:20KA(2s);Mechanical life:2000 times.
Product introduction
Load switch of YFC-12KV-630A complies with the technical requirements of GB3804-2004″High-voltage alternating-current switches for rated voltage above 3.6KV and up to and including 40.5KV”and GB16926-1997″High-voltage alternating current switch-fuse combinations”.
Major loop:630A-20KA(4s);25KA(3s);Mechanical life:5000 times.
Ground loop:20KA(2s);Mechanical life:2000 times.
Applying ambient Conditions
Altitude≤1000m,earthquake intensity≤8degree.
Class of pollution:II.
Ambient temperature:-40℃~+140℃;Relative humidity daily average≤90%,monthly average≤90%.
Not applicable in the place with requently violent vibrations,or water vapor,gas,chemicall corrosive sediments, salt spray,dust and dirt,that would significantly affect the performance of the mechanism, or fire and explosion hazards.
Technical data table
| No. | Item | Unit | Data |
|---|---|---|---|
| 1 | Rated frequency | Hz | 50 |
| 2 | Rated current | A | 1250 |
| 3 | Rated short time withstand current | kA | 20/25 |
| 4 | Rated peak withstand current | kA | 50 |
| 5 | Rated short circuit duration | s | 4 |
| 6 | Rated short circuit making current | kA | 50 |
| 7 | Rated operating sequence | O-0.3s-180s-CO | O-0.3s-180s-CO |
Outline and dimensions of installation
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