LuGao proudly leads the industry as a dedicated indoor vacuum circuit breaker manufacturer.Our flagship product, the 12KV Indoor Smart Panel Board Vacuum Circuit Breaker, is specifically designed for indoor use in AC three-phase power systems with a frequency of 50Hz and a rated voltage of 12kV.Beyond its robust design, this breaker's primary function is to excel as a protection and control unit within the electrical system.Choose LuGao for cutting-edge solutions that redefine reliability and performance in indoor vacuum circuit breakers.
Lugao boldly stands as the leading 220KV SF6 Heavy Duty High Voltage Circuit Breaker supplier. This vacuum circuit breaker is specifically crafted for applications demanding frequent operations at the rated operating current or locations prone to multiple short-circuit breaking currents. With cutting-edge technology and robust design, Lugao ensures unmatched reliability and performance in high-voltage circuit breakers. Choose Lugao for groundbreaking solutions that redefine standards in heavy-duty high voltage applications.The unique advantages of vacuum circuit breakers make them especially suitable for scenarios that demand reliable and frequent switching operations.
With its side-mounted design, the VS1-12 vacuum circuit breaker is engineered to meet the specific requirements of indoor high-voltage applications. Its robust construction and superior performance characteristics make it a reliable choice for ensuring the protection and control of electrical systems operating at 12kV.
Ambient temperature:-10℃-+40℃
Relative humidity:The average humidity of a day should be no more than 95%. The average humidity of a month should be no more than 90%.
Earthquake intensity: not exceed 8 degrees.
Saturated vapor pressure the average pressure of a day should be no more than 2.2kPa; the average pressure of a month should be no more
Than1.8Kpa;
The height above sea level:≤1000 m (Except special requirements)
It should be installed in the places without fire, explosion, serious filth, and
1.This series of VCB is used Integrated design for operating mechanism and VCB body with reasonable, beautiful and compact arrangement.
2.This series of VCB adapted vertical insulation house against Impact due to different weather, it can effectively prevent VIS against damage by exterior factors.
3.The two different installation unit of Fixed type and withdrawable type can meet the different requirements for different switchgear.
NO. | Item | Units | Parameters | |||
1 | Rated voltage | kV | 12 | |||
2 | Rated current | A | 630~1250 | 1250 | 1250 | |
3 | Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | |
4 | Rated short-circuit closing current | kA | 50 | 63 | 80 | |
5 | Rated peak withstand current | kA | 50 | 63 | 80 | |
6 | 4S rated short-circuit withstand current | kA | 20 | 25 | 31.5 | |
7 | Rated | 1min power frequency voltage | kV | 42 (fracture 48) | ||
insulation level | Lightning Impulse Withstand voltage (peak) | 75 (fracture 65) | ||||
8 | Rated operating sequence | O- 0.3S-CO-180S-CO | ||||
9 | Mechanism life | Times | 10000 | |||
10 | Opening times of rated short-circuit breaking current | Times | 50 | |||
11 | Rated operator closing voltage(DC) | V | AC/DC 220,110 | |||
12 | Rated operator opening voltage(DC) | V | AC/DC 220,110 | |||
13 | Clearance between open contact | mm | 11 ± 1 | |||
14 | Over-travel( Contact spring compression degree) | mm | 3.5 ± 0.5 | |||
15 | Three phase points, closing bounce time | ms | ≤2 | |||
16 | Contact closing bounce time | ms | ≤2 | |||
17 | Average opening speed | m/s | 1.1 ± 0.2 | |||
18 | Average closing speed | m/s | 0.6 ± 0.2 | |||
19 | Opening | The highest operating voltage | s | ≤0.05 | ||
time | The lowest operating voltage | ≤0.08 | ||||
20 | Closing time | s | 0.1 | |||
21 | Dynamic and static contact allowed to wear a cumulative thickness | mm | 3 |