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A Calculation Method of Wind Deviation Distance of Insulator String under Different Lengths

A technology of insulator strings and calculation methods, which is applied in the directions of electromagnetic wave re-radiation, instruments, and measuring devices, can solve problems such as errors and large errors, and achieve the effect of real and effective data, convenient data acquisition, and simple calculation process

Active Publication Date: 2019-07-23
HAINAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
  • Description
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  • Application Information

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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

Method used

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  • A Calculation Method of Wind Deviation Distance of Insulator String under Different Lengths
  • A Calculation Method of Wind Deviation Distance of Insulator String under Different Lengths
  • A Calculation Method of Wind Deviation Distance of Insulator String under Different Lengths

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Experimental program
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Effect test

Embodiment 1

[0031] see figure 1 , a method for calculating the windage distance of insulator strings under different lengths, including the following steps:

[0032] S1. Establish an insulator wind deflection distance simulation device. The insulator wind deflection distance simulation device includes a support frame, a transmission rope, a ball-end hanging ring, a main control computer, an insulator string composed of several insulators, an inclination sensor, and a laser range finder. The bottom of the insulator string is connected to the transmission rope, and the top of the insulator string is connected to the top of the support frame through a ball-end hanging ring. An inclination sensor is set on the ball-end hanging ring. Through this setting, the inclination sensor can detect the wind of the insulator string in real time. yaw angle, the inclination sensor is connected with the main control computer signal, the main control computer can display the detected insulator string wind ya...

Embodiment 2

[0044] The difference between this embodiment 2 and embodiment 1 is that 7, 9, and 14 pieces of 155mm insulators are selected to form an insulator string. °, 35°, and 40°, the data are made into Table 2, and obtained as Figure 5 , Figure 6 , Figure 7The compensation coefficient curve shown in Table 2 is as follows:

[0045] Table 2 Measurement data of 155mm insulator string

[0046]

[0047]

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Abstract

The invention provides a method for calculating the wind swing distance of an insulator string under different lengths. According to the method, an insulator wind swing distance simulation device is established, so that a wind swing compensation coefficient is obtained; and the wind swing distance of the wind swing is obtained. The method has the advantages of convenient data acquisition, true andeffective data and simple calculation process. The method can be applied to practical conditions and provide a direct and effective method for the wind swing analysis of overhead transmission lines.

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 insulator strings with different lengths. 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 ang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/08
CPCG01S17/08
Inventor 符传福姚冬陈钦柱赵海龙陈川刚邢博宇
Owner HAINAN POWER GRID CO LTD ELECTRIC POWER RES INST
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