Title :
Effects of an insulating support in AC electric field measurement
Author :
Takuma, Tadasu ; Kawamoto, Tadashi ; Sumiyoshitani, Satoru ; Akazaki, Masanori
Author_Institution :
Kyushu Univ., Fukuoka, Japan
fDate :
10/1/1993 12:00:00 AM
Abstract :
This paper examines the effect of an insulating support which is essential for measuring electric field strength in the space. Various affecting parameters are analyzed for a model arrangement of a free-body meter put on the top of a vertical insulating column, such as relative permittivity and the dimensions of the column and the probe (field-sensing electrodes) of the meter used. The paper also presents experimental and numerically calculated results for the output increase of a practical electric field strength meter caused by the presence of a support. These characteristics are discussed with an equivalent circuit diagram consisting of electrostatic capacitances and by considering the field distortion caused by the insulating column
Keywords :
electric field measurement; electrodes; equivalent circuits; insulators; probes; voltmeters; AC electric field measurement; electrostatic capacitances; equivalent circuit diagram; field distortion; field-sensing electrodes; free-body meter; insulating support; power overhead lines; probe; relative permittivity; vertical insulating column; Current measurement; Dielectrics and electrical insulation; Distortion measurement; Electric fields; Electric variables measurement; Electrodes; Electrostatic measurements; Probes; Proximity effect; Transmission line measurements;
Journal_Title :
Power Delivery, IEEE Transactions on
