SHEN Ji-liang1, HUANG Fu-yong1, ZHOU Wei-hua1, et al. New Dielectric Test Method for Oil/Gas Insulated High Voltage Bushing of Transformer[J]. High voltageapparatus, 2009, 45(4): 71-73.
SHEN Ji-liang1, HUANG Fu-yong1, ZHOU Wei-hua1, et al. New Dielectric Test Method for Oil/Gas Insulated High Voltage Bushing of Transformer[J]. High voltageapparatus, 2009, 45(4): 71-73.DOI:
Oil/SF6 gas insulated high voltage bushing is a new type of electric equipment in transformer.Because of its special structure
it is very difficult to open the SF6 gas chamber in field test.This paper presents a new test method for dielectric loss of the bushing
in which the chamber needn’t be opened.A test circuit with a voltage on the neutral point is designed and applied to field test device.The test data and the possible error are analyzed.Field test shows that the test data is consistent with the analytical one.