The generator guide vane cannot be opened when it reaches 20%.

Does the questioner want to ask "the reason why the generator guide vane cannot open when its opening reaches 20%"? Battery capacity is insufficient. According to the generator fault guide, it can be seen that the generator guide vane cannot open when the opening reaches 20%, which is caused by insufficient battery capacity. Generators refer to mechanical equipment that converts other forms of energy into electrical energy. It is driven by water turbine, steam turbine, diesel engine or other electrical machines and converts energy generated by water flow, air flow, fuel combustion or nuclear fission . into mechanical energy and transmits it to the machine's generator, which is then converted into electrical energy.