Title :
An on-line measurement method for cable insulation resistance in a GPT´s neutral point directly grounded system
Author :
Xinlao, Wei ; Sen, Ma ; Qingguo, Chen ; Yonghong, Wang
Author_Institution :
Dept. of Electr. Mater., Harbin Univ. of Sci. & Technol., China
Abstract :
The paper presents a new DC bridge method for on-line measurement of XLPE cable insulation resistance in the case of GPT´s neutral point directly grounded. The influence factors that may bring errors are discussed and the ways to reduce errors are given. A lower voltage simulating test is done and the measuring results of the test show that the method is suitable for measurement of insulation resistance of cable
Keywords :
XLPE insulation; electric resistance measurement; insulation testing; power cable insulation; power cable testing; DC bridge method; GPT neutral point directly grounded system; XLPE cable insulation resistance; on-line measurement; Bridge circuits; Cable insulation; Dielectrics and electrical insulation; Electric resistance; Electrical resistance measurement; Inductors; Power cable insulation; Power cables; Resistors; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on
Conference_Location :
Seoul
Print_ISBN :
0-7803-2651-2
DOI :
10.1109/ICPADM.1997.617617
