电缆缓冲层的参数确定方法、装置以及电子设备
By using a high-frequency current sensor to detect partial discharge in the cable buffer layer and establishing parameter correspondence, the accuracy of detecting the ablation and moisture absorption of the water-blocking buffer layer in high-voltage cables is solved, enabling rapid and reliable fault early warning and handling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- STATE GRID BEIJING ELECTRIC POWER CO
- Filing Date
- 2023-11-21
- Publication Date
- 2026-07-17
AI Technical Summary
The lack of effective detection methods for the ablation defects and moisture absorption of the water-blocking buffer layer in high-voltage cables in the existing technology leads to the inability to detect cable faults in a timely manner. Furthermore, the accuracy and reliability of existing detection methods are insufficient, making it difficult to meet detection requirements.
A high-frequency current sensor is used to detect partial discharge inside power equipment. Through a ring-shaped magnetic core material and a multi-turn conductive coil, induced voltage and pulse waveform data are obtained, and the correspondence between requested parameters and power parameters is constructed to achieve rapid and accurate parameter determination.
It enables timely and accurate detection of cable buffer layer erosion and moisture, reduces the possibility of faults, improves the speed and reliability of detection, and lowers the false detection rate.
Smart Images
Figure CN117929934B_ABST