The performance and service life of high voltage shunt capacitor

to a large extent

are depended on its operation condition. The operating temperature of high voltage shunt capacitor is very important to its application. In this paper

the data of capacitance and temperature of case is accumulated on the basis of on-line monitoring system of high voltage shunt capacitor

the relation between the capacitance and shell temperature of the capacitor in operation is analyzed. It is pointed out in particular that in case of evaluating capacitor’s condition with reference of relative variation of capacitance

the temperature correction on the actually measured capacitance should be considered.