Dry type air core shunt reactor is an important device for reactive power compensation in power system. In recent years

the fault of dry air core shunt reactor due to various causes are happened. The reason of 3-time fault for dry air core reactor is investigated and analyzed so to avoid re-occurrence of the similar fault and improve operation reliability of the equipment. The cause of the fault is found out through inspection and test

disassembly analysis with combination of the structure of the dry type air core shunt reactor

the measure for avoiding the fault is pointed out. The analysis result has important significance for improving the reliability of the dry-type air-core shunt reactor.