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FZW28-12 series outdoor AC high voltage boundary vacuum load switch is suitable for outdoor three-phase AC power distribution system with rated voltage of 12kV and rated frequency of 50Hz. It is used for opening and closing load current and closing short circuit current. Applicable to substations, industrial and mining enterprises and cities, agricultural networks for protection cities, agricultural network automation distribution network and frequent operations. The boundary load switch consists of two parts, the FZW28-12 vacuum load switch and the controller, which are electrically connected through an air socket and an outdoor sealed control cable. It can reliably judge the zero-sequence current and phase-to-phase short-circuit current of the milliampere inside and outside the detection circle, which can be suitable for the distribution system with different neutral grounding methods.
Technical Information
Technical Specification |
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Rated voltage |
|
| kV | 12 | |
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| dry | kV | 42/48 |
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| 1min power frequency withstand voltage (interpole to ground / fracture) | wet |
| 34 |
Rated insulation level |
| Lightning impulse withstand voltage (interpole to |
| kV | 125/195 |
Rated frequency |
|
| Hz | 50 | |
Rated current |
|
| A | 630 | |
Rated delay withstand current and duration |
| kA/2s | 16 | ||
Rated peak withstand current |
| kA | 40 | ||
Rated short circuit closing current |
| kA | 40 | ||
Mechanical life |
|
| Times | 10000 | |
Net weight |
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| kg | 198 | |
Overall and installation dimensions
National Advisory Hotline
+86 577 61666 016
Mailbox：wzxikai@wzxikai.com
Tel：+86 577 61666 016
Fax：+86 577 61666 010
Add：No.271, Weishiqi Road, Yueqing Economic Development Insuatrial Zone, Yueqing, Zhejiang.
Copyright ? Zhejiang Xikai Electric Co. , Ltd. 技術支持：鼎諾傳媒
