Review on Non-Contact Voltage/Electric Field Sensors

doi:10.3969/j.issn.1008- 0198.2023.05.011

Abstract

Abstract: Safe and accurate acquisition of electrical parameter data of the power system can ensure the safe and stable operation of the power system. Compared with traditional voltage measurement, non-contact measurement technology has higher safety because it does not need to have a direct electrical connection with the primary equipment, and has the characteristics of small size, frequency bandwidth, and good transient response characteristics, which can meet the needs of modern power grid distributed sensor networks. This paper introduces in detail the technologies of coupling capacitive voltage sensing, voltage sensing based on current integration method, D-dot electric field sensing, electric field sensing based on electro-optical effect, piezoelectric effect, and electrostatic induction effect, analyzes the advantages and existing problems of the above sensing technology, and introduces the method of electric field inversion voltage. Finally, the development prospect of non-contact voltage/electric field sensing technology is prospected.

Key words: non-contact measurement, voltage/electric field sensing technology, electric field inversion

CLC Number:

TM93

KE Kun, YANG Qing, QIU Zhenhui, LIAO Wei, ZHOU Jianglin. Review on Non-Contact Voltage/Electric Field Sensors[J]. Hunan Electric Power, 2023, 43(5): 71-78.

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