ZW7-40.5 Outdoor High Voltage AC Vacuum Circuit Breaker
Product Parameters
|
Serial number |
Name |
Unit |
Data |
|
|
1 |
Rated voltage |
kV |
40.5 |
|
|
2 |
Rated frequency |
Hz |
50 |
|
|
3 |
Rated current |
A |
1250、1600、2000 |
|
|
4 |
Rated short-circuit breaking current |
kA |
20、25、31.5 |
|
|
5 |
Rated peak withstand current |
kA |
50、63、80 |
|
|
6 |
Rated short-time withstand current |
kA |
20、25、31.5 |
|
|
7 |
Rated short-circuit making current |
kA |
50、63、80 |
|
|
8 |
Rated operating sequence |
|
Open-0.3s-Close-Open-180s-Close-Open |
|
|
9 |
Mechanical life |
Second-rate |
10000 |
|
|
10 |
Rated short circuit breaking times |
Second-rate |
20 |
|
|
11 |
Power frequency withstand voltage 1min |
(wet) phase to phase, to ground |
kV |
80 |
|
(dry) phase to phase, to ground/break |
kV |
95 |
||
|
12 |
Lightning impulse withstand voltage Allowable wear |
phase to phase, to ground/break |
kV |
180 |
|
13 |
thickness of moving and static contacts |
mm |
3 |
|
|
14 |
net weight |
kg |
Approx. 600 |
|
|
15 |
Contact opening distance |
mm |
22±2 |
|
|
16 |
Contact travel |
mm |
4±1 |
|
|
17 |
Average opening speed (12mm just after opening) |
m/s |
1.3-1.8 |
|
|
18 |
Average closing speed (6mm before closing) |
m/s |
1.0-1.7 |
|
|
19 |
Contact closing bounce time |
ms |
≤3 |
|
|
20 |
Three-phase opening and closing synchronism |
ms |
≤3 |
|
|
21 |
Main circuit resistance |
μΩ |
≤100 |
|
|
22 |
Closing time |
ms |
≤150 |
|
|
23 |
Opening time |
ms |
≤60 |
|
The overall structure of this product is a porcelain bottle on a support, the upper porcelain bottle is equipped with a vacuum interrupter, and the lower bottle is a support porcelain bottle. It is suitable for places with frequent operations. It has the advantages of good sealing, anti-aging, high pressure resistance, no combustion, no explosion, long service life, easy installation and maintenance. It is mainly used for the control and protection of outdoor 35KV transmission and transformation systems, and can also be used for normal operation and short-circuit protection of urban and rural power grids and industrial and mining enterprises.