Download the app
  • 31.5kV indoor railways vacuum circuit breaker
31.5kV indoor railways vacuum circuit breaker
discuss personally
Model
GSR+-31.5-2500
Basic info Product Detail Supplier
Basic info
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 Detail

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：

  • High Voltage Adaptability and Stable Insulation: With a rated voltage of 31.5kV, it is suitable for high-voltage environments in railway power systems. The three-pole structure encapsulated in epoxy resin, with built-in vacuum interrupters, offers excellent insulation performance and can withstand harsh environmental factors such as moisture and dust.
  • Precision Control Operation: Each phase is equipped with a brushless servo motor and dual encoders to achieve high-precision control of switching operations. It can quickly and stably respond to the on/off demands of the power system, ensuring the timeliness of power supply.
  • Intelligent Collaborative Operation: The electronic controllers of each phase have hierarchical communication functions, enabling mutual collaboration and linkage with the main control unit. This ensures that the circuit breaker can coordinate consistently and operate stably and reliably under complex working conditions.
  • Efficient Fault Protection: It has the ability to quickly cut off overloads, short circuits, and other faults, effectively protecting the railway electrical network. This avoids the impact of power faults on train operation safety and ensures the stability of the railway power supply system.
  • Compact Indoor Design: Optimized for indoor installation, its compact structure saves space, adapts to the limited installation environments in railway substations and control rooms, and facilitates integration and maintenance.

 Technical Characteristics:

 

Know your supplier
ABB
As an authorized distributor of ABB products, we take great pride in our partnership.
Main Categories
High Voltage Electrical Apparatus/Low Voltage Electrical Apparatus
Business Type
Sales
Highest Annual Export (USD)
$580000000
Professional Experience
11 years
Workplace
20000m²
占位
占位
FAQ
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).
Related Products
More
Related Knowledges
More
Cost Differences and Performance Comparison of 35kV New Energy Transformers Based on Dry-Type, Mineral Oil, and Vegetable Oil
Cost Differences and Performance Comparison of 35kV New Energy Transformers Based on Dry-Type, Mineral Oil, and Vegetable Oil
For users, when purchasing a 35kV new energy transformer, choosing between dry-type, mineral oil-filled, or vegetable oil-filled types involves multiple considerations. These include user habits, maintenance-free performance, safety and fire resistance, volume and weight, among others. However, cost differences are undoubtedly one of the most crucial factors.To illustrate the issue intuitively, this paper selects a three-level energy efficiency dual-winding new energy transformer with a rated ca
Ron
07/26/2025
What is the connection group of a transformer?
What is the connection group of a transformer?
Transformer Connection GroupThe connection group of a transformer refers to the phase difference between the primary and secondary voltages or currents. It is determined by the winding directions of the primary and secondary coils, the labeling of their start and end terminals, and the connection mode. Expressed in a clock-like format, there are 12 groups in total, numbered from 0 to 11.The DC method is commonly used to measure the transformer's connection group, mainly to verify whether the con
Vziman
07/26/2025
Working Voltage in Power System
Working Voltage in Power System
Working VoltageThe term "working voltage" refers to the maximum voltage that a device can withstand without sustaining damage or burning out, while ensuring the reliability, safety, and proper operation of both the device and associated circuits.For long-distance power transmission, the use of high voltage is advantageous. In AC systems, maintaining a load power factor as close to unity as possible is also economically necessary. Practically, heavy currents are more challenging to handle than hi
Encyclopedia
07/26/2025
What is Steady State Stability in Power System?
What is Steady State Stability in Power System?
Definition of Steady State StabilitySteady state stability is defined as the capability of an electric power system to sustain its initial operating condition following a small disturbance, or to converge to a state closely approximating the initial condition when the disturbance persists. This concept holds critical significance in power system planning and design, the development of specialized automatic control devices, the commissioning of new system components, and the adjustment of operati
Edwiin
07/26/2025
What is the sequence for powering down the transformer?
What is the sequence for powering down the transformer?
The sequence for shutting down a main transformer is as follows: when de-energizing, the load side should be shut down first, followed by the power supply side. For energizing operations, the reverse order applies: the power supply side is energized first, then the load side. This is because: Energizing from the power supply side to the load side makes it easier to identify the fault range and take prompt judgment and handling measures in case of a fault, preventing the fault from spreading or e
Rockwell
07/26/2025
What are the methods for switching operations of station transformers?
What are the methods for switching operations of station transformers?
Let's take an auxiliary power system with two station transformers as an example. When one station transformer needs to be out of service, there are two operation methods: non-interruptive power supply and instantaneous power interruption. Generally, the method of instantaneous power interruption on the low-voltage side is preferred.The operation method for instantaneous power interruption on the low-voltage side is as follows:Open the 380V power incoming circuit breaker of the corresponding sec
Vziman
07/26/2025
×
Inquiry
Download
IEE-Business is dedicated to serving the personnel in the global power industry.
Join IEE-Business, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!
App Store App Store App Store App Store App Store App Store App Store App Store
App Store