Portable seasonal factor tester

A technology of seasonal coefficient and tester, applied in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as seasonal coefficient testing, and achieve the effect of strong practicability, easy to carry, small and beautiful to carry

Inactive Publication Date: 2015-02-25
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem of seasonal coefficient test, the present invention provides a portable seasonal coefficient tester

Method used

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Embodiment Construction

[0017] like figure 1 As shown, the present invention is a portable seasonal coefficient tester, which is connected with the tester body 3 by the probe 1 through the coaxial transmission line 2; the tester body 3 is provided with a pulse signal generator 5, and the pulse signal generator 5 The pulse signal generator 5 is also connected to the high-frequency oscilloscope 4 through the synchronous signal generator 6; the other end of the high-frequency oscilloscope 4 is connected to the probe 1 through the coaxial transmission line 2 at the same time. The shell of the tester body 3 is provided with a data output port 7, a large-screen dot-matrix liquid crystal display and touch buttons, which can realize full Chinese menu operations.

[0018] The steps for testing with a portable seasonal factor tester are:

[0019] (1) The high-frequency pulse signal is transmitted by the pulse signal generator 5, and the high-frequency pulse signal is transmitted to the probe through the coaxi...

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Abstract

The invention relates to the technical field of electric power testing instruments, in particular to a portable seasonal factor tester. A probe is connected with a tester body through a coaxial transmission line; a pulse signal generator is arranged in the tester body, connected with the probe through the coaxial transmission line and further connected with a high-frequency oscillograph through a synchronizing signal generator; the other end of the high-frequency oscillograph is connected with the probe through the coaxial transmission line. The portable seasonal factor tester can visually and accurately measure the seasonal factor; according to the physical phenomenon that the running speed of electromagnetic waves will change when the electromagnetic waves are spread in media of different dielectric constants, the dielectric constant of a gas-solid-liquid mixture in soil is obtained by measurement. The portable seasonal factor tester has the advantages of convenient carrying, a touch-type button, large-screen dot-matrix type liquid crystal display, all Chinese menu operation, easy, rapid and convenient operation and high practicability, and the scientificity and accuracy of ground resistance testing work can be improved remarkably.

Description

technical field [0001] The invention relates to the technical field of an electric power detection instrument, in particular to a portable seasonal coefficient tester, which is suitable for relatively accurate testing of the seasonal coefficient in ground resistance testing and can improve the accuracy and scientificity of test results. Background technique [0002] For the lightning resistance level of power lines and equipment, the grounding resistance value is a relatively sensitive and influential factor. Scientific and standardized grounding resistance testing is very necessary for lightning protection of transmission lines. In the process of grounding resistance testing, in addition to the need to adopt easy-to-use instruments and standardized measurement methods, the correct selection of the seasonal coefficient will have a greater impact on the test results. [0003] Currently, there are two main options for seasonal coefficients. [0004] One is to use "DL / T 741-2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/20G01R27/26G01R27/02
Inventor 姜常胜张生生李学斌韩洪刚张忠瑞朱义东
Owner STATE GRID CORP OF CHINA
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