TITLE:
Analysis for the Defect of Chromatogram in 35kv Oil-immersed Electric Reactor
AUTHORS:
Yongdong Li, Qingda Meng, Zheyuan Zhao, Po Yang, Yuzheng Wang
KEYWORDS:
Oil-immersed Electric Reactor; Chromatogram Defect; Magnet Shield Layer; Partial Discharge
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
11,
2013
ABSTRACT:
A defect of chromatogram in a 35kV oil-immersed
three-phase one-piece electric reactor in a 500kV substation。The initial
analysis suggests that the defect is caused by the loose connection of the iron
core magnet shield (magnet shield layer of iron core or earthling top). Examination
of winding DC resistance, DGA and other relevant examinations were carried out to
investigate the defect reasons., which is demonstrated by the dismantlement.
In-depth study is taken and corresponding prevention measures are put forward
in the paper.