JP cabinet overvoltage protection test method based on analog overvoltage signal output
The test device that simulates overvoltage signal output solves the safety and convenience issues of power frequency overvoltage protection testing for JP cabinets, achieving efficient and accurate test results, and is applicable to various models of JP cabinets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
- Filing Date
- 2026-05-26
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional JP cabinet power frequency overvoltage protection tests have problems such as high safety risks, cumbersome operation, and easy damage to equipment, which cannot meet the needs of convenient and efficient testing.
The test device based on simulated overvoltage signal output includes an adjustable voltage source, a current limiting protection module, a terminal block and a control module. It generates a power frequency overvoltage signal by adjusting the low voltage side and limiting the current with a series resistor, thus avoiding high voltage contact and equipment damage.
It enables safe, reliable, convenient and efficient overvoltage protection testing of JP cabinets, reduces operational risks, simplifies wiring, and improves testing accuracy and efficiency. It is applicable to different models of JP cabinets.
Smart Images
Figure CN122410179A_ABST