ZW7A Outdoor High-voltage AC Vcb
ZW7A Outdoor high-voltage AC vcb is a rated voltage of 40.5kV, which is specially produced by Kexun in China factory. 50Hz three-phase AC current transformer external outdoor distribution equipment, which is suitable for Protection and control in substation and distribution system of industrial and mining enterprises.
Model: ZW7A
Brand：KEXR
Model: ZW7A
Brand：KEXR
● Model meaning
ZW7A-40.5
W = Outdoor Type
Z = Vacuum Circuit Breaker
7A = design serial number (China 7th generation improvement)
40.5 = rated voltage (40.5kV, conforming to IEC standard)
● Area of application
ZW7A Outdoor high-voltage AC vcb is not only suitable for protection and control in substations and distribution systems of industrial and mining enterprises, but also suitable for rural power grids and places with frequent operations, especially for the needs of urban and rural power grid reconstruction.
◆ Meet the standard
IEC60265、IEC62271、GB3804、GB16926 etc..
● Technical parameters of The ZW7A Outdoor high-voltage AC vcb
|
Number |
Item |
Unit |
Data |
|
|
1 |
Rated voltage |
KV |
40.5 |
|
|
2 |
Rated frequency |
HZ |
1250，1600,2000 |
|
|
3 |
Rated current |
A |
20，25,31.5 |
|
|
4 |
Rated short-circuit break current |
KA |
50,63,80 |
|
|
5 |
Rated withstand current (peak) |
20，25,31.5 |
||
|
6 |
Rated short-term withstand current |
31.5 |
||
|
7 |
Rated short circuit closing current |
80 |
||
|
8 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
|
|
9 |
Mechanical life |
Time |
10000 |
|
|
10 |
Rated short-circuit breaking current breaking times |
Time |
20 |
|
|
11 |
1Min working frequency withstand voltage |
(wet)Phase to phase/ground |
KV |
80 |
|
(dry)Phase to phase/ground |
KV |
95 |
||
|
12 |
Lighting impulse withstand voltage Phase to phase/ground |
KV |
180 |
|
|
13 |
Allowable wear thickness of dynamic and static contacts |
mm |
3 |
|
|
14 |
Net weight |
kg |
About 600 |
|
|
15 |
Contact distance |
mm |
22±2 |
|
|
16 |
Contact stroke of contact |
mm |
4±1 |
|
|
17 |
Average opening speed |
m/s |
1.3~1.8 |
|
|
18 |
Average closing speed |
m/s |
1.0~1.7 |
|
|
19 |
Contact closing bounce time |
ms |
≤3 |
|
|
20 |
Synchronization of three-phase opening and closing |
ms |
≤3 |
|
|
21 |
Main circuit resistance |
μΩ |
≤100 |
|
|
22 |
Closing time |
ms |
≤150 |
|
|
23 |
Opening time |
ms |
≤60 |
|
Hot Tags: ZW7A Outdoor High-voltage AC Vcb
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Contact Info
-
Address
No.228 Weishiqi Road, Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province, China
-
Tel
-
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