A Calculation Method of Wind Deviation Distance of 170mm Insulator String

Abstract

The invention provides a 170mm insulator string wind deflection distance calculation method. The method includes the following steps that: S1, an insulator string wind deflection simulation device isconstructed; S2, a manual simulation insulator string wind distance L and the inclination angle of an insulator string are measured; S3, an insulator string rigid wind deflection distance M is calculated; S4, a compensation coefficient is calculated; and S5, an insulator string wind deflection distance under a real condition is calculated. According to the method of the invention, the wind deflection angle is directly measured; wind deviation calculation and analysis are performed, so that the wind deviation compensation coefficient is obtained. The method has the advantages of convenient dataacquisition, real and effective data, and simple calculation process. The method can be applied to practical conditions. A direct and effective method can be provided for the wind deflection analysisof an overhead transmission line.

Description

technical field [0001] The invention relates to the field of high-voltage insulator tests, in particular to a method for calculating the windage distance of a 170mm insulator string. Background technique [0002] In recent years, affected by disastrous meteorological conditions, the frequency and intensity of wind deflection accidents of insulator strings on overhead transmission lines have increased significantly, which has caused huge economic losses and seriously affected the safe operation of the power grid. The wind deflection of insulator strings in transmission lines is the swing phenomenon of insulator strings under the action of external wind force, and the angle deviation generated by the hanging insulators during the swing process is called wind deflection angle. The formation of wind deflection of insulator strings is usually determined by two reasons: external wind force and transmission line structure. In the actual environment, the windage angle of the insula...

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Problems solved by technology

However, this method will produce certain errors when measuring, and the mathematical formula used cannot fully reflect the relationship between the wind angle and the minimum distance. There are still many uncertain parameters, or some factors are estimated. value, so the error caused by this method will be large

[0004] To sum up, the method of measuring the wind deflection angle of insulator strings and using mathematical formulas to obtain the minimum distance between the conductor and the tower has large errors, so we need to find a simple and small error measurement method to replace this scheme

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