Abstract
In this paper, a new type of electric field sensor is proposed for the health and safety protection of inspection staff in high-voltage environments. Compared with the traditional power frequency electric field measurement instruments, the portable instrument has some special performance requirements and, thus, a new kind of double spherical shell sensor is presented. First, the mathematical relationships between the induced voltage of the sensor, the output voltage of the measurement circuit, and the original electric field in free space are deduced theoretically. These equations show the principle of the proposed sensor to measure the electric field and the effect factors of the measurement. Next, the characteristics of the sensor are analyzed through simulation. The simulation results are in good agreement with the theoretical analysis. The influencing rules of the size and material of the sensor on the measurement results are summarized. Then, the proposed sensor and the matching measurement system are used in a physical experiment. After calibration, the error of the measurement system is discussed. Lastly, the directional characteristic of the proposed sensor is experimentally tested.
Highlights
High-voltage equipment is always surrounded by a strong electric field, and studies have shown that power frequency electric fields have potential harmful effects on human health and safety [1,2,3].An extremely high power frequency electric field will cause electrostatic discharge or even transient electric shock, and this will lead to other, more serious safety incidents
After existing sensor structures andand measurement results, a new type of electric field sensor with double spherical is proposed the requirements of of electric field sensor with double spherical shells isshells proposed to meet to themeet requirements of portable portable measurement
The maximum maximum relative relative error error standard no matter matter the the original original electric electric field is 11%, which appears when the electric field is about 247 V/m, and it was found by further analysis that the relative error would be less than 5% when the original electric field is stronger than 1 kV/m
Summary
High-voltage equipment is always surrounded by a strong electric field, and studies have shown that power frequency electric fields have potential harmful effects on human health and safety [1,2,3]. PMM, CA, etc., and a number of studies have continued to develop new electric field measurement instruments for special purposes [14,15,16,17]. With the tedious steps in measuring the electric field, existing instruments cannot meet the requirements of portable measurement. The electric field, existing instruments cannot meet the requirements of portable measurement. A new type of electric field measurement instrument is needed for special measuring purposes. After existing sensor structures andand measurement results, a new type of electric field sensor with double spherical is proposed the requirements of of electric field sensor with double spherical shells isshells proposed to meet to themeet requirements of portable portable measurement
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
