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Anqiang Power's outdoor high voltage load switch is a new type of load switch, consisting of an isolating switch, a vacuum interrupter, and an operating mechanism. Utilizing the vacuum arc extinguishing principle, it offers strong arc extinguishing capability, reliable performance, long service life, compact size, no explosion hazard, and no pollution. When used with the corresponding vacuum load switch, it can be applied to power transmission and distribution systems in industries such as power generation, metallurgy, mining, and chemical engineering.
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Project Name |
Parameter value |
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Rated voltage |
12KV |
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Rated frequency |
50Hz |
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Rated current |
630A |
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Rated active load breaking current |
630A |
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Rated closed-loop breaking current |
630A |
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5% of rated active load breaking current |
31.5A |
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Rated cable charging and breaking current |
10A |
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Rated no-load transformer breaking capacity |
1600KVA |
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Rated breaking current of capacitor bank |
100A |
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1-minute power frequency withstand voltage |
42/48KV |
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Lightning impulse withstand voltage |
75/85KV |
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Rated short-time withstand current (thermal stability) |
20KA |
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Rated short-circuit duration |
4S |
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Rated peak withstand current (dynamic stability) |
50KA |
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Rated short-circuit making current |
50KA |
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Mechanical life |
10000次 |
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Permissible wear thickness of vacuum arc extinguishing contacts |
1mm |
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Manual operating torque |
≤200N.m |
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Assembly and adjustment of vacuum interrupter for load break switch |
Contact gap |
5±1mm |
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Average switching speed |
1.1±0.2m/s |
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Three-phase tripping is not simultaneous. |
＜5ms |
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Three-phase switching is not synchronized. |
＜2ms |
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The distance between charged bodies and their distance relative to the ground. |
＞200mm |
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Main circuit resistance |
≤150μΩ |
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Address
Jinlu Industrial Zone, Beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province, China
