Analysis and Treatment of Heating Defects in a 110 kV Cable Oil-filled Outdoor Terminal
Outdoor oil-filled cable terminals are located generally on cable terminal poles(towers),with complex operat-ing conditions and imperceptible defects.As one of the common defects in oil-filled cable outdoor terminals,several heat-ing defects have been reported in China.Promotion and popularization of infrared temperature measurement technology can significantly improve the detection rate of such defects.This article takes an example of a heating defect in an oil-filled outdoor terminal of a 110 kV cable,and summarizes the application of technologies such as infrared temperature measure-ment,high-frequency partial discharge detection,and X-ray detection.By dissecting the defect,the reason for the heating of the cable terminal is analyzed,and corresponding suggestions are proposed.
cable terminalheatinginfrared temperature measurementpartial discharge detectiondamping of insula-tion oil
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