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E-mail
info@volcano-electrical.com
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Phone
+86-577-61668058
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Address
Building 2,59, Weishiliu Road, Economic Development Zone, Chengdong Street, Yueqing, Zhejiang, China
Product Categories
Zhejiang Volcano electrical technology Co., LtdFree·1YRS
Outdoor Hv Vacuum Circuit Breaker
NegotiableUpdate on October 06
- Model
- Nature of the Manufacturer
- Other
- Product Category
- Vacuum Circuit Breaker
- Place of Origin
- City, Province
Overview
ZW7-40.5 outdoor high voltage vacuum circuit breaker is used for AC three-phase power system with 50Hz and voltage of 40.5KV, which is used for breaking, closing load current, overload current and short circuit current.
Product Details
Product introduction:
Zw7series 40.5KV outdoor vacuum breaker switch is apply for power station , substation, control and protection of electronic facility and electronic power circuit,also used for furquently operating occation.it used for both construction of new substation and oilless transformation of old substation Usage and conditon.Three type of ZW7 are selectional(ordinary type,anti-pollution and Plateau type) for differnt service condition and requirement of user.
| Item | Unit | Data | |||
| Rated voltage | kV | 40.5 | |||
| Rated current | A | 1600 | 2000 | ||
| Rated short circuit breaking current | kA | 25 | 31.5 | ||
| Rated short circuit making current (peak) | kA | 63 | 80 | ||
| Rated short time withstａnd (thermal stable) current | kA | 25 | 31.5 | ||
| Rated peak value withstand(dynamic) current | kA | 63 | 80 | ||
| Rated short-circuit duration | S | 4 | |||
| Rated insulation level | Lightning impulse withstａnd voltage (peak) | kV | 185 | ||
| Rated insulation level | 1min power frequency withstａnd voltage | Dry type | kV | 95 | |
| Rated insulation level | Wet type | kV | 80 | ||
| Rated operation sequences | O-0.3s-CO-180s-CO | ||||
| Breaking times of rated short-circuit breaking current | time | 20 | |||
| Full breaking time(to match spring operating device) | ms | ≤80 | |||
| Mechanical life | time | 6000 | |||
| Rated operating voltage | V | 220 | |||
| Opening distance of contact | mm | 22±2 | |||
| Over travel of contact | mm | 5±1 | |||
| Bounce time | ms | ≤5 | |||
| Each phase circuit DC resistance | μΩ | ≤120 | |||
The main characteristics of circuit breaker
Excellent braking performance, use vacuum arc, high breaking capability, mechanical life of up to 10000 times, has the advantages of simple structure, free maintenance, no maintenance cycle long; good insulation performance, good anti-contamination ability; can be installed current transformer according to customer requirements, the measurement accuracy up to0.2 class, can realize the three-phase interactive protection.
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