Title :
A Coupling Capacitor Voltage Transformer of Metering Accuracy for SF6 Insulated Compact Substations
Author :
Brah, D.B. ; Dejarnette, M.B. ; Graybill, H.W. ; Tahiliani, V.H.
Author_Institution :
General Electric Company
Abstract :
The application of metering-accuracy coupling capacitor voltage transformers to SF6 insulated compact substations presents the probleni of initial parameter change due to the enclosure of the coupling capacitor in a ground shield. Additional parameter changes may be caused by operating conditions which impose an unfavorable temperature gradient on the coupling capacitor voltage divider.
Keywords :
Capacitors; Coupling circuits; Flanges; Pollution measurement; Porcelain; Power transformer insulation; Substations; Sulfur hexafluoride; Switches; Voltage transformers;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1974.293859
