What should I do if the W column of the generator is connected to the tachometer and the idle speed

Reduce speed. When the W column of the generator is connected to the tachometer and the idle speed exceeds 6000 rpm, the speed can be reduced to normal. 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.