WANG Wei1, LIANG Gui-shu1, HAN Jin-hua2, et al. On-site Examination on Neutral-point Insulation of Large Transformer[J]. High voltageapparatus, 2009, 45(2): 114-116.
WANG Wei1, LIANG Gui-shu1, HAN Jin-hua2, et al. On-site Examination on Neutral-point Insulation of Large Transformer[J]. High voltageapparatus, 2009, 45(2): 114-116.DOI:
Through the analysis of some neutral-point insulation faults of large transformers
the necessity of on-site examination on neutral-point insulation of large transformers is discussed.The method of assessing neutral-point insulation of a large transformer through on-site AC voltage-endurance test is presented.Moreover
partial discharge measurement of neutral point of transformer is suggested.