Liyond VSG-12 1250A Vacuum Circuit Breaker (VCB) is designed for medium voltage power distribution and protection applications. Built with advanced vacuum technology, the VSG series ensures reliable and safe operation in various industrial and commercial environments. As a withdrawable type circuit breaker, this VSG-12 1250A VCB breaker is ideal for applications requiring frequent switching and offers exceptional performance and durability.
Voltage Rating: 12kV
Current Rating: 1250A
High Interrupting Capacity: Capable of handling high fault currents, ensuring protection and safety.
Compact and Robust Design: Space-saving design without compromising on durability.
Long Mechanical and Electrical Life: Engineered for longevity, reducing maintenance and replacement costs.
Fast Operating Speed: Quick response to faults, minimizing potential damage to the system.
Environmental Safety: Free from SF6 gas, making it an eco-friendly option.
Applications
Industrial Facilities: Provides reliable protection and switching for manufacturing plants and processing facilities.
Commercial Buildings: Ideal for use in office complexes, shopping centers, and other commercial properties.
Power Distribution: Suitable for use in substations and utility networks for medium voltage power distribution.
Advantages
Safety and Reliability: Vacuum technology ensures arc extinguishing is quick and reliable, enhancing safety.
Low Maintenance: Minimal moving parts reduce the need for regular maintenance.
Energy Efficiency: Designed to consume less energy during operation.
Versatility: Compatible with various medium voltage electrical switchgear configurations and standards.
|
No.
|
Item
|
Unit
|
Data
|
|
|
1
|
Rated voltage
|
kV
|
12
|
|
|
2
|
Rated frequency
|
Hz
|
50
|
|
|
3
|
Rated insulation level
|
1min power frequency withstand voltage
|
kV
|
42
|
|
Rated lightning impulse withstand voltage
|
kV
|
75
|
||
|
4
|
Rated current
|
A
|
630/1000/1250/1600/2000/2500/3150/4000
|
|
|
5
|
Rated short circuit breaking current
Rated short-time withstand current (virtual value)
|
kA
|
20/25/31.5/40/50
|
|
|
6
|
Rated short circuit making current (peak value)
Rated dynamic current(peak value)
|
kA
|
50/63/80/100/125
|
|
|
7
|
Rated short-circuit breaking current breaking time
|
times
|
30, 50
|
|
|
8
|
Rated thermal stability time
|
s
|
4
|
|
|
9
|
Rated operation sequence
|
|
O-0. 3s-CO-180s-CO
|
|
|
10
|
Mechanical life
|
times
|
30000
|
|
|
11
|
Rated breaking current of single capacitor bank
|
A
|
630
|
|
|
12
|
The breaking current of single rated capacitance bank
|
A
|
400
|
|
|
13
|
The breaking current of rated back to back capacitance bank
|
s
|
4
|
|
Contact Us
For more information about the VSG Vacuum Circuit Breaker or to request a quote, please contact us. Our experts are ready to assist you with your medium voltage switchgear needs.
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