Title :
Experimental study of the voltage coefficient of precise compressed-gas capacitors
Author :
Gao Guanggan ; Xu Daming
Author_Institution :
Nat. High Voltage Meterage Station, Wuhan, China
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. The following methods were used: 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. These methods were used to test a BF350-50T 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 kV to 350 kV; BF350-50T capacitor; compressed-gas capacitors; mechanical forces; tilted capacitor; voltage coefficient; Capacitance measurement; Capacitors; Cities and towns; Coordinate measuring machines; Electrodes; Force measurement; Goniometers; Low voltage; Mechanical variables measurement; Testing;
Conference_Titel :
Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on
Conference_Location :
Ottawa, Ontario, Canada
DOI :
10.1109/CPEM.1990.110061
