Title :
Measurement of the 2-dimensional electric field vector in dielectric liquids
Author :
Tanaka, Katsuhide ; Takada, Tatsuo
Author_Institution :
Musashi Inst. of Technol., Tokyo, Japan
fDate :
8/1/1994 12:00:00 AM
Abstract :
A new measurement technique for two-dimensional electric field vectors (electric field intensity and its direction) in liquid dielectrics has been developed in this study. The theoretical equation for measuring the electrical field vector is derived for the optical system which consists of a He-Ne laser, polarizer, quarter-wave plate, test cell with nonuniform electric field, nonpolarizing beam splitter, two analyzers and two photo detectors. The effectiveness of the technique is confirmed by comparing the theoretical values and experimental results. Furthermore, the nonuniform electric field vector distributions of the transformer oil in a compound insulation system of liquids and solids are measured
Keywords :
electric field measurement; insulating oils; insulation testing; power transformers; transformer insulation; transformer testing; compound insulation system; dielectric liquids; electric field intensity; optical system; transformer oil; two-dimensional electric field vector; Dielectric liquids; Dielectric measurements; Electric variables measurement; Equations; Laser theory; Measurement techniques; Nonuniform electric fields; Oil insulation; Optical polarization; Optical retarders;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
