The Measurement Method for Corona Discharge Current Under High-Voltage Environment

Author

Wang, Peng ; Zhang, Guixin

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing

Volume

57

Issue

8

fYear

2008

Firstpage

1786

Lastpage

1790

Abstract

Measuring corona discharge current directly on the high-voltage side is essential for the discharge mechanism research of the test object. The amplitude of the corona discharge current is in microamperes, and its frequency ranges from DC to megahertz. An optical microcurrent transducer for measurement of the current is described in this paper based on an amplitude modulation principle. A low-pass filter is used to extend the analog fiber link to recover low-frequency signals. The uncertainty of the transducer is estimated to be less than 1.3% in ratio, and its response frequency range is from DC to several megahertz.

Keywords

corona; high-voltage techniques; low-pass filters; power filters; corona discharge current; corona pulse; high-voltage environment; low-frequency signals; low-pass filter; measurement method; optical microcurrent transducer; Amplitude modulation; Corona; Current measurement; Frequency estimation; Low pass filters; Optical fiber filters; Optical filters; Optical modulation; Testing; Transducers; Corona; corona discharge current; corona pulse; current measurement; dc corona discharge; high-voltage techniques; optical current transducer;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2008.922069

Filename

4567692