Title :
Experimental study of the voltage coefficient of precise compressed-gas capacitors
Author :
Gao, Guanggan ; Xu, Daming
Author_Institution :
Nat. High Voltage Meterage Station, Hubei, China
fDate :
2/1/1993 12:00:00 AM
Abstract :
A study of the voltage coefficient of precise compressed-gas capacitors is described. A series of measuring methods based on the formula for calculating the voltage coefficient is presented: measuring the variations of capacitance when the capacitor is tilted in various directions to a specific angle; measuring the variations in capacitance when the capacitor is tilted in a specific direction to various angles; and measuring the variations in the coordinates of the electrodes when these electrodes are subjected to various mechanical forces, etc. These methods were used to test a 350 kV, 50 pF capacitor, and its voltage coefficient was found to be less than one part in a million from 0 kV up to 350 kV
Keywords :
capacitance measurement; high-voltage techniques; power capacitors; 0 to 350 kV; 350 kV; 50 pF; HV; compressed-gas capacitors; electrodes coordinates; mechanical forces; voltage coefficient; Calibration; Capacitance measurement; Capacitors; Coordinate measuring machines; Electrodes; Electrostatics; Force measurement; Frequency; Mechanical variables measurement; Voltage;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
