Fault influence factor quantitative analysis method based on high voltage switch

Abstract

The invention provides a fault influence factor quantitative analysis method based on a high voltage switch and can acquire accurate relationship between fault influence factors and corresponding fault types. The method comprises steps (1) initial data is acquired according to operation parameter data and fault type data after data classification; (2), standard processing on the initial data is carried out; (3), the operation parameter data taken as an independent variable and the fault type data taken as a dependent variable are introduced to regression analysis to acquire an optimal high voltage switch fault influence factor quantitative analysis model; (4), regression diagnosis of a Logistic regression equation of the model is carried out, if the model is qualified, the progress turns to a step (5); if not qualified, a secondary optimal high voltage switch fault influence factor quantitative analysis model of the step (3) is utilized to carry out regression diagnosis till the modelis qualified, the progress turns to the step (5); (5), according to the qualified optimal high voltage switch fault influence factor quantitative analysis model of the step (4), quantitative analysison the Logistic regression equation is carried out to acquire high voltage switch fault influence factors.

Description

technical field [0001] The invention relates to the operation and maintenance analysis of high-voltage switches, in particular to a quantitative analysis method based on high-voltage switch fault influencing factors. Background technique [0002] High-voltage switches refer to electrical appliances with a rated voltage of 3kV and above, which are mainly used to break and close conductive circuits. Its alias is called high-voltage circuit breaker. This type of product can not only cut off or close the no-load current and load current in the high-voltage circuit, but also cut off the overload current and short-circuit current through the function of the relay protection device when the system fails. Perfect arc extinguishing structure and sufficient breaking capacity. High-voltage switches are usually electromechanical-hydraulic integrated equipment, which are mainly installed in different substations in various regions in the power grid, to break the circuit to achieve norma...

AI Technical Summary

Problems solved by technology

The current fault influencing factors are mainly discovered by operators or technicians through the operation and maintenance data and their experience. In the face of increasingly complex intelligent and automatic high-voltage switchgear, the hidden fault influencing factors analysis problem is becoming more and more effective. Due to subjective limitations, it is difficult to comprehensively guide and provide corresponding references for actual operation and maintenance work

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