STRATEGY FOR A LARGE SCALE INTRODUCTION OF
Generation of power from a large wind turbine
The windwheel of (10–70 CE) marks one of the first recorded instances of wind powering a machine. However, the first known practical wind power plants were built in , an Eastern province of (now Iran), from the 7th century. These "" were vertical axle windmills, which had long vertical with rectangular blades. Made of six to twelve covered. [pdf]
Reasons for large leakage current of photovoltaic panels
Probable cause: Leakage current faults are generally divided into three categories:External environmental factors (increased environmental humidity)System factors (poor system ground insulation)Inverter factors (leakage current detection protection threshold is too small) [pdf][FAQS about Reasons for large leakage current of photovoltaic panels]
