Protective device for single-phase transformer applicable to traction substation

A single-phase transformer and protection device technology, applied in the direction of emergency protection circuit devices, circuit devices, electrical components, etc., can solve the problems of poor pertinence, high cost, inconvenient transformer maintenance and other problems, and achieve real-time information processing, good economical benefit effect
CN101888083BActive Publication Date: 2013-09-04南京国电南自轨道交通工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南京国电南自轨道交通工程有限公司
Publication Date
2013-09-04

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Abstract

The invention provides a protective device for a single-phase transformer applicable to a traction substation, which covers related protective functions of the single-phase transformer such as differential protection, back-up protection, non-electric quantity protection and the like. The protective device is concise and complete and is applicable to a conventional V / V wiring protection mode for the single-phase transformer and a wiring mode for the single-phase transformer under an AT power supply mode in the high speed railway traction substation. The protective device is simple and has high performance and convenient maintenance.
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Description

technical field

[0001] The invention relates to the field of electrified railway traction power supply system. In particular, it relates to the field of single-phase transformer protection widely used in high-speed electrified sections. The invention realizes the protection, measurement and control functions of a dedicated single-phase traction transformer. Background technique

[0002] High-speed railway has a history of 40 years in the world, but it is still in the planning stage in China. With the implementation of my country's "medium and long-term railway network planning", especially in the context of the global financial crisis, my country has added 2 One trillion yuan is used for railway construction, and my country's railway construction has ushered in a new round of peaks, among which high-speed railways have become the focus of railway construction. Compared with conventional railways, high-speed railways have higher speed and higher power, and AC-DC-AC electric ...

Claims

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