The fault of shunt reactor in operation will affect power quality of the system

pose a threat to the safe and stable operation of power grid

therefore

it’s of great significance to analyze the causes of its faults and maintain safety of power grid. The analysis for multiple times of abnormal chromatography problem of certainoilimmersedshuntreactorinoperationisdevelopedinthispaper.Threepossiblyexisteddefects

which is obtained by the three ratio method

are overheat and discharge

low temperature and overheat and arc discharge.Itisconcluded

incombinationwiththereturnanddisassemblyatthemanufacturerforthelasttime

thatthereasonleadingtotheabnormalchromatographyofreactoristheincreaseofeddycurrentlossduetoshort circuit between core pieces

burning of insulation pad due to partial overheat

eventually leading to the short circuit of insulation. For improving reliability of the equipment

the reasonable prevention and control measures are proposed from such aspects as design

input

operation

detection and maintenance respectively so as to provide reference for the treatment and operation maintenance of the same type of equipment.