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Factory direct sales of 35KV outdoor stainless steel miniature vacuum circuit breaker
Description: Factory direct sales of 35KV outdoor stainless steel small vacuum circuit breaker ZW7-40. The product can be divided into ordinary, anti
Product details
Factory direct sales of 35KV outdoor stainless steel miniature vacuum circuit breaker
overview
ZW7-40.5 vacuum circuit breaker product composition: The structure of the vacuum circuit breaker is a porcelain pillar type, with the upper porcelain bottle being the arc extinguishing chamber porcelain bottle, which is equipped with a vacuum arc extinguishing chamber, and the lower porcelain bottle being the pillar porcelain column. The three-phase porcelain bottles are installed together on a structural box, and the arc extinguishing chamber moving end is connected to the output shaft of the spring mechanism through a crank arm, an isolation rod. The connecting rod between the spring mechanism and the circuit breaker is housed in a waterproof mechanism box. This product mainly consists of a vacuum arc extinguishing chamber, a current transformer, a transmission mechanism, and a spring operated mechanism.
Technical Parameter
Main technical parameters of circuit breaker
Serial number |
Project |
unit |
Numerical value |
1 |
rated voltage |
kV |
40.5 |
2 |
Rated current |
A |
1250/1600/2000/2500 |
3 |
Rated frequency |
Hz |
50 or 60 |
4 |
Power frequency withstand voltage for 1 minute (wet) (dry) Interphase, ground/fracture |
kV |
80 95/95 |
5 |
Lightning impulse withstand current (peak value) Interphase, ground/fracture |
kV |
185 |
6 |
Rated short circuit breaking current |
kA |
25/31.5 |
7 |
Rated short-circuit closing current (peak) |
kA |
63/80 |
8 |
Rated peak withstand current |
kA |
63/80 |
9 |
4S short-time withstand current |
kA |
25/31.5 |
10 |
Rated operating cycle |
Split -0.1s - Split -3s - Split -6s - Split -60s Recovery |
|
11 |
Rated short-circuit current breaking times |
order |
30 |
12 |
mechanical life |
order |
10000 |
13 |
Institutional control voltage |
V |
AC/DC220 |
14 |
Secondary circuit 1-minute power frequency withstand voltage |
KV |
2 |
Main mechanical parameters of circuit breakers
Serial number |
Parameter |
unit |
Data |
1 |
clearance between open contacts |
mm |
18±1 |
2 |
Contact overtravel |
mm |
4±0.5 |
3 |
opening speed |
m/s |
1.4-1.8 |
4 |
closing speed |
m/s |
0.4-0.8 |
5 |
Contact closing bounce time |
ms |
≤5 |
6 |
Center distance between phases |
mm |
710±2 |
7 |
Three phase opening and closing asynchrony |
ms |
≤2 |
8 |
Resistance of each phase conductive circuit |
μΩ |
＜80 |
9 |
close time |
ms |
≤100 |
10 |
Opening time |
ms |
≤50 |
11 |
weight |
Kg |
About 800 |
35KV Outdoor High Voltage Vacuum Circuit Breakerzone of application
Zhejiang Province, Jiangsu Province, Anhui Province, Shanghai City, Shandong Province, Hebei Province, Henan Province, Beijing City, Tianjin City, Shandong Province, Liaoning Province, Heilongjiang Province, Jilin Province, Inner Mongolia Autonomous Region, Shanxi Province, Shaanxi Province, Gansu Province, Xizang Autonomous Region, Qinghai Province, Yunnan Province, Guangxi Autonomous Region, Sichuan Province, Guizhou Province, Chongqing City, Hubei Province, Hunan Province, Jiangxi Province, Guangdong Province and other regions.
ZW7-40. The product can be divided into ordinary type, anti fouling type, and plateau type according to the usage conditions
Circuit breakers can be equipped with isolation switches or surge protectors according to user needs.
The circuit breaker can be equipped with manual spring mechanism or electric spring mechanism, and the electric spring mechanism can be equipped with wireless remote control.
Circuit breakers can be combined with corresponding controllers to form automatic reclosers, sectionalizers, etc. according to user requirements, achieving distribution network automation.
Factory direct sales of 35KV outdoor stainless steel miniature vacuum circuit breaker
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