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A support for monitoring power frequency electric field strength in power transmission and transformation projects

A power frequency electric field, power transmission and transformation technology, which is applied in the direction of electrostatic field measurement, measuring device casing, etc., can solve the problems of large errors and inaccurate monitoring results, and achieve large errors and small monitoring errors of power frequency electric field strength , the effect of accurate monitoring results

Active Publication Date: 2019-07-30
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a support for monitoring power frequency electric field strength in power transmission and transformation projects, which solves the technical problems of large errors and inaccurate monitoring results in the existing power frequency electric field strength monitoring, and realizes relatively low error in power frequency electric field strength monitoring. Small, accurate technical effect of monitoring results

Method used

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  • A support for monitoring power frequency electric field strength in power transmission and transformation projects

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Embodiment 1

[0028] In Embodiment 1, a bracket for monitoring power frequency electric field strength in power transmission and transformation projects is provided. Please refer to figure 1 -, wherein, the bracket specifically includes: 1-straight section support rod, 2-connection plate, 3-tripod support. The capacitance of the support is less than 0.5pF, and the equivalent resistance of the support is greater than 50G ohms.

[0029] Further, the said material is engineering plastic.

[0030] Further, when the bracket is at an ambient temperature of 0°C to 40°C and a relative air humidity of 20% to 95%, when voltages of 1000V, 2000V, 3000V, 4000V, and 5000V are respectively applied to the bracket, the capacitance value of the bracket Both are less than 0.5pF, and the equivalent resistance values ​​of the brackets are all greater than 50G ohms.

[0031] Further, the support is specifically a tripod, the vertical distance between the bottom of the tripod and the connection point of the tri...

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Abstract

The invention discloses a power frequency electric field intensity monitoring support applied in a transmission and transformation project, and the capacitance of the support is less than 0. 5pF; the equivalent resistance of the support is greater than 50G ohm. With the support, the power frequency electric field intensity monitoring error is reduced, and the monitoring results are accurate.

Description

technical field [0001] The invention relates to the field of power frequency electric field strength monitoring for power transmission and transformation projects, and in particular to a support for power frequency electric field strength monitoring for power transmission and transformation projects. Background technique [0002] The impact of power transmission and transformation equipment on the surrounding environment mainly includes electromagnetic radiation, noise, ecological environment, and visual impact. Among them, power frequency electromagnetic field is the main environmental impact problem of power facilities. Therefore, it is necessary to monitor the power frequency electric field intensity of power transmission and transformation projects. [0003] In the prior art, the power frequency electric field strength monitoring system is mainly used to monitor the power frequency electric field strength of the power transmission and transformation project, but the pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/12G01R1/04
CPCG01R1/04G01R29/12
Inventor 兰新生周易谦丁登伟苏长华王方强王志高
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST