A personal safety simulation test method and device thereof

A simulation test and personal safety technology, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve the problems of non-equivalence, etc., and achieve the effect of good equivalence, easy realization, and easy operation

Active Publication Date: 2020-04-21
李景禄
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In order to verify the impact of various grounding methods and grounding fault handling devices on personal safety, animal testing is mainly used at present, that is, contacting animals with the power grid for single-phase grounding tests. The body resistance and stride distance are quite different from the human body, and the test is not equivalent. Therefore, a personal safety simulation test method is found to simulate the impact on personal safety of personal electric shock or single-phase disconnection and grounding of the power grid. , it is very necessary to find a suitable distribution network neutral point grounding method and distribution network single-phase ground fault processing device through experiments

Method used

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  • A personal safety simulation test method and device thereof

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Embodiment Construction

[0011] Realized by the personal safety simulation test device, which includes contactors Jz1, Jz2, Jz3, switches K1, K2, K3, K4, K5, adjustable resistors R1, R2, R3, current sensors TA1, TA2, TA3, Voltage sensors TV1, TV2 and computer measurement and control system are characterized in that: contactor Jz1 is connected to one end of switch K1, the other end of switch K1 is respectively connected to adjustable resistor R1 and one end of switch K5, and the other end of switch K5 is connected in series with voltage sensor TV2 Grounding, the other end of the adjustable resistor R1 is connected to one end of the current sensor TA1, the other end of the current sensor TA1 is respectively connected to one end of the switches K2 and K3, and the other end of the switch K2 is sequentially connected to the current sensor TA2, the adjustable resistor R2 and the contactor placed on the ground Jz2, the other end of switch K3 is sequentially connected to current sensor TA3, adjustable resistor...

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Abstract

The invention discloses a personal safety simulation test method. Adjustable resistors, switches, current sensors, voltage sensors and a computer control system are adopted to form the personal safety simulation test device according to the method. After the simulation test device is accessed to a power grid, single-phase grounding tests are performed using different power distribution network neutral point grounding mode and grounding fault processing devices. Tests of step voltage near a grounding fault point are carried out using the different power distribution network neutral point grounding mode and grounding fault processing devices when single-phase broken-line grounding occurs. Current values, voltage values, current duration time and voltage duration time are acquired in the tests, influences of the different power distribution network neutral point grounding mode and grounding fault processing devices on personal safety are assessed, and a proper power distribution network neutral point grounding mode and power distribution network single-phase grounding fault processing device is found out through the tests.

Description

technical field [0001] The invention belongs to the field of distribution network testing, and is mainly used for the safety impact test of different distribution network neutral point grounding modes and grounding fault processing devices on personal single-phase electric shock grounding. Background technique [0002] The neutral point grounding method of power system is a comprehensive technical subject involving many aspects of the power system. It is directly related to the reliability of power supply, the function of relay protection devices and the impact on personal safety. At present, the distribution network mainly adopts the neutral point non-grounding method, the neutral point grounding method through the arc suppression coil and the neutral point through the resistance grounding method. With the development of the distribution network, the capacitive current increases, especially the overhead insulated wire A large number of applications, and the overhead insulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 李政洋李景禄
Owner 李景禄
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