Used for rated voltage 12kv below power network systems for remote making and breaking and frequent starting and control of AC motors, transformers and capacitor banks and other occasions.
CKG4-7.2kv/800A (vacuum switch) high-voltage vacuum contactor consist of separable insulator bracket and metal frame. It has advantage of firm structure, high reliability, contact from the large open, better breaking capacity and smaller bounce at contact closing and opening. It is suitable for the distribution system of metallurgy, mine, petro-chemistry and building, to control the equipments used eletricity such as high-voltage motor of 7.2kV or under 7.2kV, transformer and capacitive loading etc. Especially suitable for frequent operation domain. Because of its small volume, light weight and packaged design of upper and lower arrangement, prevalent in the world. It is convenient to use and maintain, and is easy to form the complete equipment of F-C loop.
| Control circuit, soft starter dedicated vacuum switch | |||||||||||
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| ModelTech parameter Parameter name | 160/12KV | 250/12KV | 400/12KV | 630/12KV | 800/12KV | ||||||
| Main circuit rated voltage (KV) | 12 | 12 | 12 | 12 | 12 | ||||||
| Main circuit rated current (A) | 160 | 250 | 400 | 630 | 800 | ||||||
| Main circuit making capacity (A/100times) | 1600 | 2500 | 4000 | 6300 | 8000 | ||||||
| Main circuit break-make ability (A/25times) | 1280 | 2000 | 3200 | 5000 | 6000 | ||||||
| Maximum break ability (A/3times) | 3200 | 3200 | 4500 | 6300 | 8000 | ||||||
| Mechanical life (times) | 100 0000 | 100 0000 | 100 0000 | 100 0000 | 100 0000 | ||||||
| Electricity life AC3 (times) | 25 0000 | 25 0000 | 25 0000 | 25 0000 | 25 0000 | ||||||
| Engineering lock life (times) | 10 0000 | 10 0000 | 10 0000 | 10 0000 | 10 0000 | ||||||
| Power-frequency withstand voltage for main circuit(fracture)(kv) | 42 | 42 | 42 | 42 | 42 | ||||||
| Phase-phase phase -to current withstand voltage(KV) | 42 | 42 | 42 | 42 | 42 | ||||||
| Lightning impulse withstand voltage (KV) | 75 | 75 | 75 | 75 | 75 | ||||||
| Rated operate frequency (times/h) | 300 | 300 | 300 | 300 | 300 | ||||||
| Engineering lock operate frequency (times/h) | 30 | 30 | 30 | 30 | 30 | ||||||
| Terminal pressure(N) | >100 | >100 | >100 | >100 | >100 | ||||||
| Clearance betweenopen contacts (mm) | 6±0.5 | 6±0.5 | 6±0.5 | 6±0.5 | 6±0.5 | ||||||
| Over travel (mm) | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | 1.5±0.5 | ||||||
| Weight(Kg) | 30 | 30 | 30 | 30 | 30 | ||||||
| Main circuit resistance( μΩ ) | ≤200 | ≤200 | ≤200 | ≤200 | ≤200 | ||||||
| Secondary control voltage (v) | ACorDC:110 220 380or can be customized | ||||||||||
