Evaluation method of electrical injury taking into account differential personal pressure
An evaluation method and technology for electric shock, applied in the direction of measuring electricity, measuring only voltage, measuring electrical variables, etc., can solve the problems of lack of test platform and system, lack of grid line ground fault current and step voltage, etc., and achieve convenient operation. Effect
Active Publication Date: 2021-06-29
SOUTHWEST JIAOTONG UNIV
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Problems solved by technology
[0003] For the evaluation technology of personal safety accidents caused by power line grounding faults, the current main research is to conduct evaluations based on the national standards of power plants and substations, but there is a lack of test platforms and systems under the influence of various specific personal or biological factors. There is also a lack of collaborative analysis models and techniques for the testing and evaluation of ground fault current and step voltage of power grid lines based on aboveground circuits and underground electric fields.
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0026] Depend on figure 1 It can be seen that the experimental platform and method provided by the present invention comprise the steps:
[0027] The first step is to build a surface potential test platform for testing the ground potential of the grid line. The platform includes a KR-1G grounding device (20), a uniform soil (21), a current generation module (22), and a Test module (23), host computer (24), zero potential electrode (25);
[0028] The surface potential test module (23) includes a disc electrode (1), a hollow cylindrical insulating support (2), a columnar copper bolt (3), a weight (4), a hollow cylindrical insulating support two (5), a wire (8), wire two (9), wire three (10), wire four (11), wire five (12), wire six (13), wireless data transmitter (14), resistance (15), electrical parameter record Instrument (16), Rogowski coil (17), lithium ...
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The invention discloses a method for evaluating electric injury damage taking into account differentiated personal pressure. The test platform in the method for evaluating electric injury taking into account differentiated personal pressure mainly includes a grounding device, uniform soil, a current generating module, and a ground surface. Potential test module, host computer, zero potential electrode; the surface potential test module is placed on the uniform soil surface, the surface potential test module is electrically connected to the zero potential electrode, the current generation module is electrically connected to the grounding device, and the host computer can receive the surface potential test module. The measurement data, the evaluation method not only includes potential measurement, but also includes steps such as assessing personal injury. The invention can effectively carry out testing and research under the influence of human body pressure factors, can analyze the grounding fault current and voltage distribution of power grid lines with unified above-ground circuits and underground electric fields, and can effectively evaluate and take into account the degree of electric injury damage under differentiated personal pressure.
Description
technical field [0001] The invention belongs to the technical field of risk assessment for grounding faults in electric power systems, and in particular relates to a method for assessing electrical injury damage taking into account differentiated personal pressure. Background technique [0002] The safe, reliable and economical operation of the power system is an important measure to ensure the quality of life of the people. The grounding technology of the power system can provide a low-impedance flow path for fault current or lightning current, which can effectively ensure the safety and stability of the smart large power grid. It can provide reliable protection for the insulation of electrical equipment and lines in the smart large grid system, and can also provide safety guards to avoid electric injury and damage accidents to the human body. When a ground fault occurs in the power system, the assessment of the risk of electric shock to the human body is particularly impor...
Claims
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IPC IPC(8): G01R31/00G01R19/00
CPCG01R19/0084G01R31/00
Inventor 张栋周利军黄林
Owner SOUTHWEST JIAOTONG UNIV