31.5kV indoor railways vacuum circuit breaker
浙江千邦电气有限公司
11yrs +
staff 20000+m² US$580000000+
Key attributes
| Brand | ABB |
| Model NO. | 31.5kV indoor railways vacuum circuit breaker |
| Rated voltage | 31.5kV |
| Rated normal current | 2500A |
| Rated frequency | 50/60Hz |
| Series | GSR+ |
Product descriptions from the supplier
Description
Description：
Medium Voltage single-phase circuit breaker with magnetic actuator, designed for railway power supply up to 27.5 kV, 2500 A, 31.5 kA
With a rated voltage of 31.5kV, it can effectively handle the electrical loads in railway applications. Equipped with brushless servomotors (one per phase) and double encoders, it enables precise control over switching operations. Each phase also has an electronic controller that communicates hierarchically, ensuring coordinated and reliable system operation. This breaker is designed to safeguard the railway electrical network from overloads and short - circuits, ensuring stable and safe power supply for trains and related facilities.
The GSR+ II range is the first commercially available single-phase vacuum circuit breaker for railway power supply applications to feature a vacuum interrupter, magnetic actuator and electronic controller. This solution is robust, reliable and essentially maintenance-free.
Feature：
Technical Characteristics:
Q: What are the differences between indoor vacuum circuit breakers and SF₆ circuit breakers?
A:
Arc-quenching medium:
Vacuum circuit breakers use vacuum for arc quenching (environmentally friendly, no greenhouse gases), while SF₆ circuit breakers use SF₆ gas (requiring attention to gas leakage and environmental treatment).
Volume and maintenance:
Vacuum circuit breakers are smaller in size and have a longer maintenance cycle (the maintenance-free cycle can reach 10 years); SF₆ circuit breakers require regular detection of gas pressure.
Q: What are the precautions for installing indoor vacuum circuit breakers?
A:
Ensure the installation environment is dry, free of corrosive gases, and well-ventilated (meeting the IP4X protection class requirements).
Check that the dimensions of the switchgear cabinet match those of the circuit breaker (e.g., withdrawable types need to be compatible with the switchgear rails), and fasten the connection terminals securely to prevent loosening and overheating.
The insulation distance of the primary circuit must meet the standards (e.g., for 12kV products, the phase-to-phase and phase-to-ground clearances shall be ≥125mm).
ABB
浙江千邦电气有限公司
11yrs +
staff 20000+m² US$580000000+
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 20000m²
Total staff:
Highest Annual Export(usD): 580000000
Services
Business Type: Sales
Main Categories: High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus
Whole life care manager
Full lifecycle management services for equipment procurement, use, maintenance, and after-sales,
ensuring safe operation of electrical equipment, continuous control, and worry-free electricity
consumption.
The equipment supplier has passed platform qualification certification and technical evaluation,
ensuring compliance, professionalism, and reliability from the source.
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