Side-mounted Indoor High Voltage Vacuum Circuit Breaker
The Side-mounted indoor high voltage vacuum circuit breaker produced by Chinese factory Kexun is mainly used for protection and control circuits. It is suitable for places with rated voltage of 12kV and frequency of 50Hz where frequent operation or circuit current interruption is required. It can be installed in fixed switchgear or used alone.
Model: VS1
Brand：KEXR
Model: VS1
Brand：KEXR
●structural characteristics of The Side-mounted indoor high voltage vacuum circuit breaker
▶Lateral Operation Mechanism
▶Epoxy Resin Insulated Pole
▶Trip-Free Spring Operating System
▶Front/Rear Cable Terminations
● Side-mounted indoor high voltage vacuum circuit breaker using conditions
▶Ambient temperature range: The temperature surround Side-mounted indoor high voltage vacuum circuit breaker should be -15~40℃
▶Altitude: The Side-mounted indoor high voltage vacuum circuit breaker should be installed less than 1000 meters.
▶Relative humidity: the daily average is not more than 95%, the monthly average is not more than 90%, the daily average of saturated vapor pressure is not more than 2.2×10-3MPa, and the monthly average is not more than 1.8×10-3MPa.
▶Earthquake intensity: less than 8 degree
▶Places without fire, explosion, serious pollution, chemical corrosion and severe vibration.
● Technical parameters of The Side-mounted indoor high voltage vacuum circuit breaker
|
Item |
Unit |
Data |
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|
Rated voltage |
KV |
12 |
||||
|
Rated current |
A |
630~1250 |
1250 |
1250 |
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|
Rated short circuit break current |
KA |
20 |
25 |
31.5 |
||
|
Rated short circuit closing current |
KA |
50 |
63 |
80 |
||
|
Rated peak withstand current |
KA |
50 |
63 |
80 |
||
|
4S short circuit withstand current （peak） |
KA |
20 |
25 |
31.5 |
||
|
Rated insulate level |
Working withstand voltage |
KV |
42（48） |
|||
|
Impact withstand voltage |
75（85） |
|||||
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Rated operating sequence |
|
Break-0.3s-close-180s-close |
||||
|
Mechanical life |
Time |
10000 |
||||
|
Rated short-circuit current interruption |
Time |
50 |
||||
|
Rated opening voltage of operating mechanism（DC） |
V |
110,220 |
||||
|
Contact terminal distance |
mm |
11±1 |
||||
|
Overtravel (contact spring compression length) |
mm |
35±0.5 |
||||
|
Three-phase separation and closing bounce time |
ms |
≤2 |
||||
|
Contact closing bounce time |
ms |
≤2 |
||||
|
Average opening speed |
m/s |
1.1±0.2 |
||||
|
Average closing speed |
m/s |
0.6±0.2 |
||||
|
Opening time |
Max operating voltage |
s |
≤0.05 |
|||
|
Min operating voltage |
≤0.08 |
|||||
|
Closing time |
s |
0.1 |
||||
|
Allowable wear accumulation thickness of dynamic and static contacts |
mm |
3 |
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Contact Info
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Address
No.228 Weishiqi Road, Yueqing Economic Development Zone, Wenzhou City, Zhejiang Province, China
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