A method for judging whether the lightning arrester of reactive power compensation device is electrified

Abstract

The invention discloses a method for judging whether a lightning arrester of a reactive power compensation device is electrified. One end of a digital voltmeter is connected to a self-made insulating coil, and the other end is connected to the grounding terminal of the lightning arrester of a reactive power compensation device, and the floating voltage of the self-made insulating coil to the ground is measured. ;Change the position and angle of the self-winding insulating coil and the reactor of the device; if the voltage of the digital voltmeter shows a large value and changes greatly, it means that the reactor is charged, and the arrester of the reactive power compensation device is also charged, and it can be connected to the arrester for testing If the voltage value of the digital voltmeter is relatively small and there is no obvious change, it means that the reactor is not charged, and the arrester of the reactive power compensation device is not charged. This method can directly judge the charging status of the outdoor 35kV and 66kV reactive power compensation device arrester without connecting the live tester, which saves manpower, effectively shortens the working time, and improves related work efficiency.

Description

technical field [0001] The invention relates to the technical field of power system monitoring and detection, in particular to a method for judging whether an arrester of a reactive power compensation device is charged. Background technique [0002] Reactive power compensation, referred to as reactive power compensation, can improve the power and factor of the power grid in the electronic power supply system, reduce the loss of power supply transformers and transmission lines, improve power supply efficiency, and improve the power supply environment. loss of energy-saving measures. It is also because of this that the reactive power compensation device is in an indispensable and very important position in the power supply system. [0003] At present, many substations are equipped with reactive power compensation devices, and the lightning arresters of outdoor 35kV and 66kV voltage level reactive power compensation devices need to be tested once a year. To judge whether the ...

AI Technical Summary

Problems solved by technology

To judge whether the reactive power compensation device is charged, the traditional method of listening to whether there is noise in the capacitor and whether the online monitoring meter has current display is generally adopted. For reactive power compensation devices with low noise and no online monitoring meter, the Difficult to tell if electrical equipment is live

On the other hand, because the wiring and testing of the arrester live tester are cumbersome, it is often found that the arrester is not live after the tester is connected. This invalid operation not only wastes manpower, but also affects the test work efficiency.

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