SUN Zhuo, MAO Chang-zhou, XUE Yuan. Analysis of Operation Management of Main Transformer Neutral Point Earthing Isolated Switch[J]. High voltageapparatus, 2009, 45(3): 142-144.
SUN Zhuo, MAO Chang-zhou, XUE Yuan. Analysis of Operation Management of Main Transformer Neutral Point Earthing Isolated Switch[J]. High voltageapparatus, 2009, 45(3): 142-144.DOI:
This paper introduces the process of substation lawn firecaused by single-phase-to-ground lines due to bad contact of main transformer neutral point earthing isolated switch
and analyzes the causes of the accident including principle
equipment selection
maintenance test
operation management
etc.It is concluded that attention should be paid to the operation management of main transformer neutral point earthing isolated switch.In addition
corresponding preventive measures are proposed to avoid similar accidents.