一种有载分接开关的选择器调挡定位方法、系统及选择器
By combining a stepper motor and a voltage detection circuit, the operating state is set according to the voltage changes of the stationary and moving contacts, and the movement distance of the moving contact is corrected. This solves the problem of inaccurate tap changer positioning in on-load tap changer selectors, achieving higher positioning accuracy and reliability, and providing early warning in case of abnormalities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- MAINTENANCE BRANCH COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing selector gear shifting and positioning method for on-load tap changers, failure of the encoder mechanism cannot be detected in time, resulting in inaccurate gear shifting and positioning, which affects the reliability of the equipment.
The method combines a stepper motor and a voltage detection circuit. The operating state is set by the relationship between the contact position of the stationary contact and the moving contact and the voltage change. The movement distance of the moving contact is corrected by the feedback signal of the stepper motor and the voltage detection signal. The cumulative number of drive pulse signals is reset to improve positioning accuracy.
It improves the accuracy and reliability of on-load tap changer selector's tap position adjustment, and provides early warning in abnormal situations to avoid cumulative errors and ensure stable equipment operation.
Smart Images
Figure CN122000220B_ABST