- Circuit Breakers[6]
- Fuses[3]
- Other Electrical Equipment[1]
- Other Switches[6]
- Other Machinery[1]
- Contact Person : Mr. Wu Wade
- Company Name : Zhejiang Xikai Electric Co., Ltd.
- Tel : 86--577-62898300
- Fax : 86-577-62871300
- Address : Zhejiang,Yueqing,Nan'ao Village, North Baixiang Town
- Country/Region : China
- Zip : 325603
Circuit Breaker, switch
Related Product Searches:Circuit Breaker, switch,High Quality,breaker, circuit,ZW7-40.5
ZW7-40.5 Series Outdoor
H.V. Vacuum Circuit Breaker
General
It is used in three-phase Power system of AC 50Hz 40.5KV for breaking or closing load current over-load current and short circuit current
Main function
A. Adopting vacuum arc, strong breaking ability long lifetime mechanical lifetime 10000 times;
b. Simple structure unnecessary maintains unfrequented repaired;
c. Good insulating performance strong anti-filth ability;
d. It can be equipped with spring or electromagnetic operating device and operated frequently without hidden danger of fire or explosion;
e. It is equipped with current inductor 0.2 degree measure accuracy to realize three-phase mutual protection.;
f. It is attached congealed due controller to realize reliable work in the certain temperature and humidity condition.
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Use Circumstance Condition |
a. The ambient temperature: Max.+40oC,Min-30oC b. The altitude:.≤2000m(if the altitude needs increasing the rated insulating increases correspondingly)c. Wind pressure:≤700Pa(equals to wind speed 34/)d. Amplitude earthquake degree 8;e. Filth degree:Ⅲf. Max Range of day temperature:≤25oC
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Technical parameter
Number | Item | Unit | Parameter | ||
1 | Rated voltage | KV | 40.5 | ||
2 | Rated insulating level | 1minpower | Dry | 95 | |
Wet(to ground) | 80 | ||||
Lighting impulse voltage withstand | 185 | ||||
3 | Rated current | A | 1250,1600,2000 | ||
4 | Rated short circuit breaking current | KA | 20,6,31.5 | ||
5 | Rated operate order | off-0.3s-on off-180s-off-on | |||
6 | Rated short-circuit breaking times | cycle | 12 | ||
7 | Rated short circuit closing current(peak) | KA | 50,63,80 | ||
8 | Rated peak withstand current | ||||
9 | Rated short-time withstand current | 20,25,31.5 | |||
10 | Rated short breaking lasting current | s | 4 | ||
11 | Average switch-off speed | m/s | 1.5±0.2 | ||
12 | Average switch-on speed | 0.7±0.2 | |||
13 | Contact switch-on bounce time | s | ≤2 | ||
14 | Corresponding performance of three-phase breaking and closing | ≤2 | |||
15 | Switch-on time | ≤150 | |||
16 | Switch-off time | ≤60 | |||
17 | Mechanical Endurance CO | cycles | 10000 | ||
18 | Rated operating voltage &auxiliary loop rated voltage | V | DC220,110,24 | ||
19 | Loop DC resistance of each phase (without inductor) | DC220,110,24 | |||
20 | Automatic striking and grinding cumulative thickness | mm | ≤100 | ||
21 | Weight | kg | 800 | ||
2013-01-05
Circuit Breaker, switch
