High potential side energy supplying device of active electronic type photoelectric current mutual inductor

A current transformer and electronic technology, applied in the direction of inductors, voltage/current isolation, circuits, etc., can solve problems such as limited energy supply of lasers, difficult power supply methods, and untested lifespan, achieving compact structure and simple insulation packaging , use the effect of safety
CN101345128AInactive Publication Date: 2009-01-14安徽艺展电气设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
安徽艺展电气设备有限公司
Publication Date
2009-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an active electronic photoelectric current transformer high-voltage side power supply device, belonging to the field of power system technique; the device of the invention comprises a circuit A which consists of a first high-voltage energy storage coil, a first energy leakage protection circuit and a voltage processing circuit a which are sequentially connected one after another, a circuit B which consists of a second high-voltage energy storage coil, a second energy leakage protection circuit and a voltage processing circuit b which are sequentially connected one after another, and a laser component which is connected with the circuit B. The device of the invention has the advantages of small volume, compact structure, simple insulation encapsulation and safe usage, and can ensure the electronic transformer to work normally and continuously within an extremely great current range.
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Description

technical field

[0001] The invention belongs to the technical field of power systems, in particular to the structural design of high-voltage energy harvesting equipment. Background technique

[0002] In recent years, with the development of digital technology, digital substation has become an inevitable trend, and the research of its main equipment, electronic transformer (also known as photoelectric transformer), has also made continuous progress. Electronic transformers are divided into active and passive. There are two types of source. Among them, the active type is developing rapidly, and there are already products running on the grid in China. The electronic transformer directly responds to the change of the measured analog quantity with its optical digital output. According to the standards of the International Electrotechnical Commission, the advantages of electronic current transformers are: the Rogowski coil is used as a primary converter to achieve large current ...

Claims

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