Local defect aging diagnosis and evaluation method for power cable
A technology for local defects and power cables, applied in the direction of measuring resistance/reactance/impedance, measuring electrical variables, instruments, etc., to reduce the amount of calculation, reduce the difficulty of calculation, and improve the probability of successful calculation
Active Publication Date: 2021-08-20
JIANGSU ELECTRIC POWER CO
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Abstract
The invention relates to the technical field of power cables, and particularly discloses a local defect aging diagnosis method for a power cable, and the method comprises the steps: S100, calculating the reflection coefficient of the head end of the power cable; S200, processing the reflection coefficient of the head end of the power cable to obtain a position vector of each local defect of the power cable; S300, calculating each local defect parameter of the power cable according to the position vector of each local defect of the power cable; and S400, diagnosing and evaluating the local defect aging degree of the power cable according to each local defect parameter of the power cable. The local defect aging diagnosis method for the power cable provided by the invention can be used to simply and effectively diagnose local weak defect aging of the power cable.
Application Domain
Resistance/reactance/impedenceFault location
Technology Topic
Control theoryPower cable +1
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