Overhead line system electric segmentation arcing suppression system
The described system addresses arcing in electrified railway traction power supply by using a circuit breaker and isolating switches with a control unit for remote fault detection and disconnection, enhancing system reliability and safety.
CN222191843UActive Publication Date: 2024-12-17闫新芳
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Patent Information
- Application Number
- CN202420927158.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-29
AI Technical Summary
Technical Problem
Existing electrified railway traction power supply systems face arcing issues at contact network electrical segments due to potential differences and transient current shocks, leading to equipment damage and safety hazards, with existing solutions expanding fault impact and requiring local operations.
Method used
A circuit breaker, current transformer, and isolating switches connected in series and parallel with a control and communication unit, allowing remote fault detection and disconnection, and remote reclosure to maintain electrical isolation.
Benefits of technology
Reduces arcing damage, minimizes fault impact, and enhances system reliability by enabling remote operation and quick recovery, maintaining protection settings and reducing equipment wear.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN222191843U_ABST
Abstract
The utility model discloses a catenary electric section arcing suppression system. The overhead line system electric section arcing suppression system comprises a circuit breaker, a current transformer, a first isolation switch, a second isolation switch and a control and communication unit, the first isolating switch, the circuit breaker and the second isolating switch are sequentially connected in series and then are connected in parallel to two ends of an electric subsection between the first overhead line system and the second overhead line system; the current transformer is arranged between the circuit breaker and the second isolating switch; a measuring end of the current transformer is connected with an input interface of the control and communication unit, an output interface of the control and communication unit is connected with operation control units of the circuit breaker, the first isolating switch and the second isolating switch, and a communication interface of the control and communication unit is connected with a telecontrol system; during normal operation, the two sides of the electric section have the same potential, and if faults such as short circuit, overcurrent and the like occur nearby, the circuit breaker is automatically switched off and is recovered to an electric isolation state of the electric section; and after the fault is eliminated, telecontrol closing can be realized, and normal work is recovered.
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