Indoor Vacuum Circuit Breaker
CNKEEYA, a reputable manufacturer based in China, specializes in the production of high-quality Indoor Vacuum Circuit Breakers. With a dedication to excellence, CNKEEYA has established itself as a trusted supplier in the electrical equipment industry.Our products are known for their exceptional quality and reliability.
CNKEEYA's Indoor Vacuum Circuit Breakers are designed and manufactured to meet rigorous industry standards, ensuring optimal performance and safety. We collaborate with reputable suppliers to source top-notch components, further guaranteeing the quality of their products.
The VS1-12 side-type Indoor Vacuum Circuit Breaker is designed for indoor high-voltage applications, specifically tailored for systems with a rated voltage of 12kV and a frequency of 50Hz. It serves as crucial protection and control equipment. Leveraging the unique advantages of a vacuum circuit breaker, it proves especially well-suited for scenarios requiring frequent operations under rated power flow or in cases of high short-circuit currents.
Stipulated Environmental Parameters:
1. Operating temperature range: -25℃ to +40℃
2. Relative humidity: Daily average not exceeding 95%; Monthly average not surpassing 90%.
3. Saturated vapor pressure: Daily average not surpassing 2.2kPa; Monthly average not exceeding 1.8kPa.
4. Seismic activity: Must not surpass 8 degrees on the Richter scale.
5. Altitude above sea level: Up to 1000m (excluding special requirements).
6. Environmental specifications: Intended for use in areas free from fire hazards, explosive atmospheres, heavy contamination, chemical erosion, and severe vibration.
Indoor Vacuum Circuit Breaker Key Structural Characteristics:
1. The availability of two types of vacuum tubes, large and small, provides options. The outer insulation is designed to resist corrosion and wear, resulting in a high breaking capacity and a long contact lifespan.
2. Utilizing high-precision springs, along with silver-plated and bound copper contacts, ensures enhanced safety and effectiveness.
3. The adoption of a composite insulation structure not only minimizes pollution and explosion risks but also guarantees a high level of insulation. This design facilitates straightforward maintenance and prolongs the operational life.
4. The product features specific contact positions, allowing for easy visual confirmation through a window, which helps prevent incorrect operations at a glance.
Technical parameter
|
serial number |
project |
|
units |
data |
||
|
1 |
The rated voltage |
kV |
12 |
|||
|
2 |
Rated frequency |
Hz |
50 |
|||
|
3 |
Rated current |
A |
630~1250 |
1250 |
1250 |
|
|
4 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
|
|
5 |
Rated short circuit closing current |
kA |
50 |
63 |
80 |
|
|
6 |
Rated peak tolerable current |
kA |
50 |
63 |
80 |
|
|
7 |
4S rated short circuit resistance current |
kA |
20 |
25 |
31.5 |
|
|
8 |
Rated insulation level |
Power frequency withstand voltage (before and after rated break) |
kA |
42（fracture48） |
||
|
Impact withstand voltage (before and after rated break) |
kA |
75（fracture85） |
||||
|
9 |
Rated sequence of operation |
|
points-0.3s-us points-180s-us points |
|||
|
10 |
Mechanical life |
next |
10000 |
|||
|
11 |
Rated short circuit breaking current breaking times |
next |
50 |
|||
|
12 |
Operating Mechanism Rated Closing Voltage (DC) |
V |
110,220 |
|||
|
13 |
Rated tripping voltage of operating mechanism (DC) |
V |
110,200 |
|||
|
14 |
From contact |
mm |
11±1 |
|||
|
15 |
Overstroke (compression length of contact spring) |
mm |
3.5±0.5 |
|||
|
16 |
Three - phase points, closing bounce time |
ms |
≤2 |
|||
|
17 |
Contact closing bounce time |
ms |
≤2 |
|||
|
18 |
Average brake speed |
m/s |
1.1±0.2 |
|||
|
19 |
Average closing speed |
m/s |
0.6±0.2 |
|||
|
20 |
Break-brake time |
At the highest operating voltage |
S |
≤0.05 |
||
|
At the lowest operating voltage |
S |
≤0.08 |
||||
|
21 |
Closing time |
S |
0.1 |
|
50 |
|
|
22 |
Main loop resistance of each phase |
μΩ |
60 |
|
|
|
|
23 |
Allowable wear cumulative thickness of dynamic and static contacts |
mm |
3 |
|||
Hot Tags: Indoor Vacuum Circuit Breaker, China, Manufacturers, Suppliers, Factory, Quality, Wholesale
Send Inquiry
Contact Info
-
Address
No. 68, Wei No.19 Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province,China
-
-
E-mail
For inquiries about Distribution Cabinet Shell, Circuit Breakers, Switchgear or price list, please leave your email to us and we will be in touch within 24 hours.
