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Pole plate processing technology for overall calibration of power frequency electric field measuring instrument

A technology of power frequency electric field and processing technology, which is applied in the direction of measuring device, measuring electric variable, measuring device shell, etc., can solve problems such as flatness and uniformity of voltage distribution, waste of funds, and deformation that cannot meet the requirements of power frequency electric field plate, etc. To achieve the effect of strengthening flatness and uniformity and conductivity

Active Publication Date: 2020-02-04
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to build a 1.5m high sensor bracket into the standard electric field and ensure a certain accuracy, the electrode plate with an equivalent diameter of at least 4m should be processed to meet the requirements of the calibration work, and this large-sized electrode plate is easy to process after processing. It leads to deformation and cannot meet the flatness and uniformity of voltage distribution required by the power frequency electric field plate, resulting in waste products and wasting a lot of money

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A pole plate processing technology for the overall calibration of a power frequency electric field measuring instrument, comprising the following steps:

[0036] 1) Weld a plurality of aluminum plates into an electrode plate with an equivalent diameter greater than or equal to 4m. The welding adopts the method of interval welding on the back and no welding on the front. The total welding length of adjacent aluminum plates is less than 1 / 2 of the full welding length;

[0037] 2) Add an aluminum equipotential connection line by welding on the back of the electrode plate;

[0038] 3) Fill the unwelded gap on the front of the electrode plate with a mixture of conductive aluminum powder and cured glue, the ratio of the conductive aluminum powder to the cured glue is 1.2:1;

[0039] 4) A silver powder layer is sprayed on the front of the electrode plate, and the thickness of the silver powder layer is 1mm.

Embodiment 2

[0041] This embodiment is based on embodiment 1, and the difference from embodiment 1 is that the ratio of the conductive aluminum powder to the cured glue is 2.5:

[0042] 1; The thickness of the silver powder layer is 3mm.

Embodiment 3

[0044] This embodiment is based on embodiment 1, and the difference from embodiment 1 is: the ratio of the conductive aluminum powder and the cured glue is 1.8:

[0045] 1; The thickness of the silver powder layer is 2mm.

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PUM

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Abstract

The invention discloses a pole plate processing technology for overall calibration of a power frequency electric field measuring instrument. The pole plate processing technology comprises the following steps: 1) welding a plurality of aluminum plates into an electrode pole plate with an equivalent diameter of greater than or equal to 4m, wherein the welding adopts a mode of back spaced welding andfront non-welding; 2) adding an aluminum equipotential connecting line on the back of the electrode pole plate; 3) filling a mixture composed of conductive aluminum powder and curing glue in a non-welded gap on the front of the electrode pole plate; and 4) arranging a silver powder layer on the front of the electrode pole plate. The pole plate prepared by the technology disclosed by the inventionhas the advantages of good flatness and consistent voltage distribution, and can meet the requirements of the power frequency electric field pole plate.

Description

technical field [0001] The invention relates to the technical field of power equipment calibration, in particular to a plate processing technology for overall calibration of a power frequency electric field measuring instrument. Background technique [0002] The power frequency electric field is an important evaluation index in the environmental impact assessment of power transmission and transformation projects and the environmental protection acceptance of completion. The devices used for power frequency electric field measurement are called "power frequency electric field measuring instrument", "power frequency Frequency electric field measuring device" and so on, according to the provisions of my country's Metrology Law, these equipment should be verified or calibrated to be qualified when used. [0003] my country's legal metrology institutions are responsible for the traceability of the value of such equipment, but at present, when the legal metrology institutions calib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/04G01R35/00
CPCG01R1/04G01R35/005
Inventor 兰新生姚晓王方强唐平滕予非周易谦侯国彦张业茂何宇航王志高田倩倩耿植薛志航刘红志刘涛
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST