| 摘要 |
PURPOSE:To improve efficiency of a generator by adjusting the number of operation units of a ventilating and cooling electric fans according to the temperature in the wind passage of the generator. CONSTITUTION:In the wind passage 1 of a generator 2, a temperature detector 4 is installed, which is connected with a number of operation units selecting circuit 5, and the number of operation units of ventilating and cooling electric fans is adjusted according to the temperature in the wind passage. Thus, the number of operation units of ventilating and cooling electric fans in light loading of the generator 2 can be reduced, and the efficiency of the generator 2 can be improved. |
