High-accuracy equipment for detecting pollution flashover of insulator

Abstract

The invention provides high-accuracy equipment for detecting the pollution flashover of an insulator. The high-accuracy equipment comprises a detection portion and a reception portion. In the detection portion, the insulator is a part of an insulator chain, a part of a detection module is located around the insulator, and the other part of the detection module is fixed to a grounded tower. The detection module comprises a current transformer, a pre-amplification module, a filtration module and a detection unit circuit and transmits obtained signals to a detecting and processing module through a data line. A reception portion module of the reception portion comprises a wireless receiving module, a second processing module, a waveform displaying module and a computer. The high-accuracy equipment for detecting the pollution flashover of the insulator can detect the insulator on a transmission line in a remote and real-time mode, can conveniently obtain the pollution flashover alarm information in advance so as to replace or maintain the insulator, is small in dangerousness, reasonable in manufacturing cost, accurate in measurement and high in anti-jamming capability, and improves the safety and reliability of a power grid.

Description

technical field [0001] The invention relates to a device for detecting pollution flashover of insulators with high precision, and more specifically, to a device for detecting pollution flashover of insulators with high precision on a transmission line. Background technique [0002] The insulator on the high-voltage transmission line not only plays the role of electrical insulation, but also plays the role of mechanical support. To ensure that the transmission line can also operate normally when overvoltage occurs, the working state of the insulator plays a crucial role in the safety and reliability of the power network. important role. Insulators will inevitably be polluted outdoors. Although in a dry climate, these polluted dust have no effect on the reliability of the insulator due to its large resistance; but in an environment with high humidity, the dust on the surface of the insulator is wet, causing the surface of the insulator to A full blown flashover occurred. Aft...

AI Technical Summary

Problems solved by technology

For example, the collected power frequency leakage signal is converted into frequency transmission, etc., but because the power frequency leakage is a single characteristic quantity, it cannot reflect the state of the insulator, or it is uneconomical due to the influence of network transmission; or it is dangerous, expensive, and inaccurate. , poor anti-interference ability

In addition, to inspect insulators regularly or after pollution flashover occurs, the work tasks are heavy and intensive

Images