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FN16A indoor AC M.V Vacuum load break switch are developed by our company The products follow GB3804-90《3-62kV AC H.V load switch》and IEC62271《 AC H.V. indoor load break switch-fuse combinations》 (2002 edition). These switches are small volume, beautiful appearances, flexible installation, and easy operation. This switch applied for the 50/60Hz, 6-24kV Power distribution system. It can break on load current, and fuse combination can break the over load current and short circuit current. Load break switch with-fuse combinations are also used for protecting over load of transformer and avoiding short-circuit current.
Technical Information
Technical Specification |
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|
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Rated voltage | kV | 12 | 24 |
Rated current | A | 630 | 630 |
Rated power frequency | Hz | 50/60 | 50/60 |
Short circuit making capacity | kA Peak. | 50 | 31.5 |
Peak withstand current | kA Peak. | 50 | 50 |
Short time current | kA eff. |
|
|
1Sec. |
| 25 |
|
3Sec. |
| 20 | 20 |
Max. breaking capacity in co-operation with fuses IEC 62271-105(IEC 420 1990-11) | A | 2000 | 2000 |
Max. fuse current(XRNT Fuse) | A | 200 | 200 |
Power frequency withstand voltage 50Hz 1 min,: |
|
|
|
- To earth and between poles | kV | 42 | 65 |
- Across isolating distance | kV | 48 | 79 |
Impulse withstand voltage 1.2/50μ s: |
|
|
|
- To earth and between poles | kV | 75 | 125 |
- Across isolating distance | kV | 85 | 145 |
Mechanism Endurance |
|
|
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-Vauum interrupter | cycles | 10000 | 10000 |
-Main switch and Earth Switch | cycles | 2000 | 2000 |
Overall and installation dimensions
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+86 577 61666 016
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Tel：+86 577 61666 016
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