Simulated measurement system for transient electric shock

Abstract

The invention discloses a simulated measurement system for a transient electric shock. The system comprises a conductor model provided with a bracket, an electric shock receptor model, and a high-speed data acquisition system. An insulating plate is arranged at the bottom of the electric shock receptor model; a discharge gap measuring and controlling system for monitoring and controlling the distance change of the discharge gap between a triggered electric shock portion and the conductor model is arranged at the triggered electric shock portion with the transient electric shock at the electricshock receptor model and the conductor model. The high-speed data acquisition system is used for controlling and measuring a transient voltage and a transient current of the electric shock receptor model within sampling time and acquiring the energy of the electric shock receptor model and the dynamic characteristics of the charge during the transient electric shock process. Therefore, the influence on the transient current and voltage by the moving speed during the transient electric shock process as well as the precise distance of the transient electric shock occurrence is obtained, so thatthe exposure limit value is determined.

Description

technical field [0001] The invention relates to the technical field of electric transmission, in particular to an analog measurement system for transient electric shocks. Background technique [0002] In the industry, transient electric shock refers to the moment when the human body touches an object that has electrostatic induction, the charge originally accumulated on the object is released to the earth through the human body. And this phenomenon that the high-potential object discharges to the low-potential object is the transient electric shock phenomenon of the human body. Under the high-voltage transmission line, the reasons for the rise of the potential of the human body are mainly divided into two situations: AC and DC, which are explained as follows: [0003] 1) The voltage polarity of the conductors of the AC transmission line changes periodically, and the periodically changing alternating electric field causes the movement of the surface charge of the human body....

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Problems solved by technology

[0006] At present, there are usually two schemes for the research on the transient electric shock of the human body. One is a transient electric shock measurement system with a fixed discharge gap composed of a human body model and a conductive object to measure the transient current and transient discharge energy. Analysis, the distance of the discharge gap is adjustable before the experiment starts, but once the charging experiment starts, the distance cannot be adjusted, so the actual contact action of the human body cannot be simulated

Moreover, in the existing transient electric shock simulation measurement system with a fixed discharge gap used in experiments, the experimental results show the breakdown current when the fixed discharge gap is broken down, and ca

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