Non - contact voltage estimation method based on power frequency electric field sensor

The existing non-contact voltage measurement methods are advanced because of their high insulation, safety and reliability, but the distance between the sensor and the transmission line is difficult to measure. Therefore, a non-contact voltage estimation method based on power frequency electric fiel...

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Bibliographic Details
Published in:Ferroelectrics 2022-09, Vol.597 (1), p.149-157
Main Authors: Wei, Ran, Shi, Xinghua, Wang, Yanyun, Zhang, Wenbin, Suo, Chunguang
Format: Article
Language:English
Subjects:
Electric contacts
electric field sensor
Electric fields
Electrical measurement
Error analysis
Finite element method
Insulation
Line voltage
Measurement methods
non-contact measurement
sensor arrangement
Transmission lines
Voltage estimation
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Summary:The existing non-contact voltage measurement methods are advanced because of their high insulation, safety and reliability, but the distance between the sensor and the transmission line is difficult to measure. Therefore, a non-contact voltage estimation method based on power frequency electric field sensor is proposed. The two factors that lead to the estimation error, sensor consistency and sensor arrangement, are studied by finite element simulation and experiment based on this method. The development of the prototype has also been completed, and its feasibility has been verified through experiments. The experimental results show that the device can be applied to single transmission line voltage measurement. And the maximum estimation error is only 4.12 kV at 38 kV voltage, which proves that this method has high accuracy.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2022.2092013