Harmonic component-based arc grounding fault determination method and system for distribution cable
A technology for power distribution cables and grounding faults, applied in the direction of measuring electricity, measuring electrical variables, and information technology support systems, etc., can solve problems such as difficult to accurately identify and extract, and achieve the effects of reducing equipment loss and improving reliability and selectivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0022] as Figure 1 As shown, a method for determining arc-ray ground faults of distribution cables based on harmonic components, the method comprises steps in the following sequence:
[0023] (1) Collect the three-phase voltage, zero sequence voltage and zero sequence current signal of the monitored distribution cable, and collect the arc light signal of arc light sensor 3 at the same time;
[0024] (2) The collected voltage and current signal and arc light signal are judged by the starting conditions, and if the starting conditions are not met, the subsequent collected signals are judged; if the conditions are met, the next step is entered;
[0025] (3) Take the zero sequence current signal of the monitored distribution cable after starting 1000ms, carry out bandpass filtering, obtain the harmonic content of the 50Hz to 1500Hz frequency band, find the largest band of each line with the 100ms window, compare with each other to find the maximum value, and think that the line where ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com