Detection system for partial discharge of transformer

Abstract

The invention discloses a transformer partial discharge detection system, which includes a data acquisition module, a signal generator, a signal conditioning device, a filter unit, a resonant reactor, and a variable frequency power supply. Composed of impedance and coupling capacitors, the data acquisition module, signal generator, signal conditioning device, filter unit, and resonant reactor are all connected to the variable frequency power supply. By designing the partial discharge detection system of the transformer into this structure, the response speed is fast , Strong reliability and good stability.

Description

technical field [0001] The invention relates to a power system, in particular to a transformer partial discharge detection system. Background technique [0002] With the continuous construction of the national UHV AC and DC system, the stability and reliability of the power grid are becoming more and more important. Therefore, the power grid puts forward more and more strict requirements on the safety and reliability of the power equipment itself. The insulation of the power equipment itself As an important part of the safety and reliability of power equipment, performance should be paid attention to. Transformers are particularly important in power grids. However, due to natural environment and natural damage, partial discharges will occur in transformers, which will affect the stable operation of the entire system. At present, there are mainly infrared technology, ultrasonic technology, ultraviolet sensing technology, etc. to detect its discharge. However, due to factors s...

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Problems solved by technology

[0002] With the continuous construction of the national UHV AC and DC system, the stability and reliability of the power grid are becoming more and more important. Therefore, the power grid puts forward more and more strict requirements on the safety and reliability of the power equipment itself. The insulation of the power equipment itself As an important part of the safety and reliability of power equipment, performance should be paid attention to. Transformers are particularly important in power grids. However, due to natural environment and natural damage, partial discharges will occur in transformers, which will affect the stable operation of the entire system. At present, there are mainly infrared technology, ultrasonic technology, ultraviolet sensing technology, etc. to detect its discharge. However, due to factors such as equipment and structure, existing technical means have problems such as slow response speed, inaccurate detection, and low reliability.

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