Study on Highly Sensitive Detection of Grounding Faults in Multi-feature Integrated Distribution Networks
Grounding fault detection of distribution networks facilitates working efficiency improvement,of which most studies currently focus on the use of a single characteristic variable of the fault.In this paper,through the flexible use of means such as wavelet analysis,fast Fourier transform,etc.,it is indicated that the transient DC component of faulty phase current can be used as a criterion for detecting the number of faulty phase.Therefore a comprehensive fault detec-tion and identification method is proposed,which has been proved accurate and efficient for various types of grounding faults.
multiple featuresintegrated distribution networkgrounding fault detectionhighly sensitive detection
万方数据
维普
