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A GTEM cell suitable for partial discharge uhf sensor detection

A sensor and test point technology, which is applied in the field of GTEM cells, can solve the problems of deviation from the reasonable range, inconsistent test results, and the position and size of the hole size are not strictly calculated and calibrated, so as to achieve accurate results and simple operation.

Active Publication Date: 2020-07-03
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of the GTEM cell and the position and size of the opening are not strictly calculated and calibrated.
The position and size of the hole on the top plate of the GTEM cell used by some testing institutions are relatively random, and the test results are not consistent, and some results even deviate greatly from the reasonable range

Method used

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  • A GTEM cell suitable for partial discharge uhf sensor detection
  • A GTEM cell suitable for partial discharge uhf sensor detection
  • A GTEM cell suitable for partial discharge uhf sensor detection

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] An embodiment of a GTEM chamber suitable for partial discharge UHF sensor detection provided by the present invention is as follows: Figure 1-4 As shown, specifically:

[0039] Such as figure 1 As shown, the GTEM cell is a quadrangular pyramid GTEM cell, including a top plate 1 , a conductive plate 2 and a bottom plate 3 .

[0040] Wherein, the top electrode plate 1 and the bottom electrode plate 3 are arranged at two non-adjacent conical surfaces in the quadrangular pyramid-shaped GTEM cell, and the conductive electrod...

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PUM

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Abstract

The invention provides a GTEM cell suitable for detection of a partial discharge UHF sensor. The GTEM cell of a rectangular pyramid shape comprises a top pole plate, a conductive pole plate and a bottom pole plate, the top pole plate and the bottom pole plate arranged in two conical surfaces not adjacent to each other in the GTEM cell, and the conductive pole plate is fixed between the other two conical surfaces; the top pole plate is connected to the conductive pole plate via fastening lines; the top pole plate is provided with a circular hole, and a circular disk is mounted on the circular hole; and the circular disc is used to accommodate the detected partial discharge UHF sensor and a reference antenna. Compared with the prior art, test results for different partial discharge UHF sensor detected by the GTEM cell are within a reasonable range, and the test results are repeatable.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation equipment, in particular to a GTEM cell suitable for partial discharge UHF sensor detection. Background technique [0002] The use of GTEM (gigahertz transverse electromagnetic wave chamber) chamber for electromagnetic testing is a new technology developed in the international electromagnetic field in recent years. Because the working frequency of the GTEM cell is extremely wide (from direct current to above 3GHz), the cost is low (far lower than the cost of the anechoic chamber). It can be used not only for electromagnetic compatibility radiation sensitivity test (EMS test, also called immunity test), but also for electromagnetic radiation test (EMI test), and the equipment used is simple in configuration, low in cost, and can be used for fast and automatic testing. So more and more international and domestic people concerned. At present, in the radio frequency tes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00
CPCG01R35/00
Inventor 杨圆毕建刚阎春雨袁帅吴立远杨宁王峰是艳杰高彬孟楠
Owner CHINA ELECTRIC POWER RES INST
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