Method for monitoring mechanical states of high-voltage isolating switches and emitting warning

Abstract

The invention relates to a method for monitoring mechanical states of high-voltage isolating switches and emitting warning, and belongs to the field of technologies for monitoring power transformation equipment in an online manner. The method for monitoring the mechanical states of the high-voltage isolating switches and emitting warning has the advantages that working currents, which represent the magnitude of operation resistance, of driving motors are monitored during opening or closing operation on the high-voltage isolating switches in real time, so that operation resistance change conditions can be comprehensively monitored in integral operation procedures, defects such as jamming and movement failure of equipment can be timely found out, and equipment state maintenance or state evaluation can be effectively supported; the method is simple in implementation and simple, clear and reliable in principle, and increase of the complexity of the original equipment can be prevented when the method is implemented; the mechanical states of the high-voltage isolating switches can be diagnosed in real time, defect types of the mechanical states of the high-voltage isolating switches can be intelligently judged, warning can be timely emitted, accordingly, severe faults of the equipment can be effectively prevented, and economic loss and social influence can be reduced.

Description

technical field [0001] The invention relates to a mechanical state monitoring and early warning method of a high-voltage isolating switch, and belongs to the technical field of on-line monitoring of power transformation equipment. Background technique [0002] As one of the important switching devices of the power system, the high-voltage disconnector is used in the largest number among the primary devices of the system. It mainly plays the role of isolating voltage and ensuring the safety of other electrical equipment during maintenance work. Due to reasons such as manufacturing, installation, use environment, and operation and maintenance, high-voltage isolating switches often have defects such as overheating of the diversion part, jamming of the transmission mechanism, refusal to move, and breakage of the operating porcelain bottle, which seriously affect the safe and stable operation of the power grid system. [0003] Since the condition-based maintenance of power grid e...

AI Technical Summary

Problems solved by technology

This method needs to modify the structure of the original equipment, which may affect the performance indicators of the original equipment design

When the installed torque sensor is operated in an outdoor environment, it is easily affected by bad weather such as low temperature and severe cold, resulting in distortion of output data, which cannot guarantee long-term reliable operation

In addition, this method requires manual analysis and judgment of the torque curve, and does not have the functions of intelligent diagnosis and real-time early warning

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