State Grid Zhejiang Electric Power Company (China)

Transient Electric Field Evolution in a 220 kV Cable Joint Under Switching Overvoltage Considering Measured Dielectric Dispersion

Switching energization imposes wideband transient voltages on cable joints, whereas conventional simulations often use frequency-independent properties for semiconductive field-control components. This study develops a measurement-informed time-domain workflow for a 220 kV cable...

A Study on the Identification of Partial Discharges in Typical Defects of Cross-Linked Polyethylene Cables Using the CNN-SE-RAP Algorithm

To address the reliance on manual interpretation and the limited discrimination capability of conventional methods for highly similar phase-resolved partial discharge (PRPD) patterns in cross-linked polyethylene (XLPE) cables, a convolutional neural network incorporating squeeze-...