QUAN Zhao-chun1, LI Ai-yuan1, CHEN Shi-xiu2, et al. Solution to Negative tan δ Value Problem in Field Test of a Transformer Substation[J]. High voltageapparatus, 2007, (6): 469-470.
QUAN Zhao-chun1, LI Ai-yuan1, CHEN Shi-xiu2, et al. Solution to Negative tan δ Value Problem in Field Test of a Transformer Substation[J]. High voltageapparatus, 2007, (6): 469-470.DOI:
To solve the problem of negative tanδ value in field test of some transformer substation
this paper analyzes this phenomenon and gives a feasible resolution-microcurrent compensation method to revolve the negative tanδ due to the interference of electric field.This method is verified simple and reliable.