Research on voltage withstand test methods for reactors in ultra-high voltage substations
The safe operation of substations is crucial to the stability of the power system.As the key equipment in the substation,the on-site assessment of the insulation status of the reactor is an important link to ensure the safety of the power system.This paper carries out an in-depth study on the voltage withstand test method for oil-filled reactors in ultra-high voltage substations,firstly,investigating the typical insulation defects of reactors and their on-site insulation assessment techniques,and then introducing the basic principles and device types of series resonance withstand test and oscillating voltage withstand test,and comparing and analysing the advantages and disadvantages of the two test methods.The results show that the series resonant withstand voltage test method is more suitable for the field insulation assessment of high-voltage oil-filled reactors in substations.
reactorinsulation testoscillatory shockvariable frequency power supplyseries resonance
万方数据
维普
