Relay branch state detection method, device, medium and electric meter of three-phase electric meter
By acquiring the superimposed digital voltage signals of each phase branch of a three-phase meter relay, extracting the voltage peak value and its timestamp, and combining them with the state determination conditions, the problem of the single state identification function in the existing technology is solved, and accurate judgment and fault diagnosis of the state of the three-phase meter relay branch are realized.
Patent Information
- Application Number
- CN202511514015.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2045-10-22
AI Technical Summary
Existing technology can only determine the overall on/off state of three-phase power supply, resulting in a relatively simple state recognition function that cannot achieve individual identification and monitoring of the voltage state of each phase.
By acquiring the superimposed voltage digital signals of each phase branch of the three-phase meter relay, extracting the voltage peak value of each phase branch and its corresponding timestamp, and combining it with preset state judgment conditions, the state of the three-phase meter relay branch can be accurately judged.
It enables effective verification of the opening and closing status of the relay back end, supports phase loss fault diagnosis and phase sequence error identification of three-phase power supply, and significantly enhances the granularity and accuracy of status monitoring.