Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

1. IntroductionIn recent years, with the steady and rapid development of the national economy, electricity demand has grown significantly. In rural power grids, the continuous increase in load, combined with irrational distribution of local power sources and limited voltage regulation capabilities in the main grid, has resulted in a considerable number of 10 kV long feeders—particularly in remote mountainous areas or regions with weak grid structures—whose supply radius exceeds national standard