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Grounding detection device

A grounding detection and grounding grid technology, applied in measuring devices, fault locations, measuring electrical variables, etc., can solve the problems of inaccurate grounding acceptance values ​​and reducing the acceptance level and quality of grounding engineering design

Active Publication Date: 2017-08-11
CHINA GENERAL NUCLEAR POWER OPERATION +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the measured values ​​of step voltage and touch voltage are greatly affected by environmental factors, if only the measured values ​​are used, some grounding acceptance values ​​will often be inaccurate, which reduces the design acceptance level and quality of the grounding project

Method used

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] see figure 1 , the ground detection device 100 in one embodiment is used to detect the target voltage of the ground grid of the electrical equipment. Electrical equipment is equipment that needs to be grounded through a ground grid to ensure equipment safety. The target voltage may include step voltage and touch voltage, or only step voltage or touch voltage. The ground detection device 100 includes a housing (not shown), a power supply device 104, an analog short-circuit current generating device 106, an analog short-circuit current output interface 108, a voltage detection interface 110,...

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Abstract

A grounding detection device comprises a shell. The shell is internally hollow to form a holding cavity. The grounding detection device also comprises a simulation short-circuit circuit output interface, a voltage detection interface, an input device and an output device which are fixed on the shell, and a power supply, a simulation circuit current generation device, a voltage detection device and a processing device which are fixed in the holding cavity. The input device is used for the personnel to input the physical parameters of the soil in the area where the grounding grid is located, the fault parameters of the electrical equipment with the grounding fault and the design parameters of the grounding grid, then the processing equipment is enabled to obtain the actual value of the target voltage, the required value of the target voltage and the theoretical value of the target voltage which are output by the output device. The grounding detection device can improve the acceptance accuracy and efficiency, is easy to carry, and can be applied to the design and acceptance stages.

Description

technical field [0001] The invention relates to the technical field of measuring tools, in particular to a ground detection device. Background technique [0002] In grounding engineering design, acceptance and operation stages, the grounding grid calibration often takes the grounding resistance value, step voltage, and contact voltage measurement values ​​as consideration standards. In this measurement method, whether the design of step voltage and contact voltage is reasonable, and whether the acceptance measurement is accurate are not clearly stipulated. Since the measured values ​​of step voltage and touch voltage are greatly affected by environmental factors, if only the measured values ​​are used, some grounding acceptance values ​​will often be inaccurate, which reduces the design acceptance level and quality of the grounding project. Contents of the invention [0003] Based on this, it is necessary to provide a grounding detection device that can improve the accura...

Claims

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Application Information

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IPC IPC(8): G01R19/165G01R31/08
CPCG01R19/16538G01R31/086
Inventor 赵军曾其权韩雪华陈晨黄杰
Owner CHINA GENERAL NUCLEAR POWER OPERATION
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