| 摘要 |
PURPOSE:To prevent the dewing on a motor by providing a voltage applying means applying the voltage less than the starting voltage of a pump to the motor coil of the pump. CONSTITUTION:An applied voltage transfer switch 33 is controlled by an operation switch 17. When it is connected to the contact (a) side, the voltage of AC 100V is applied to the motor coil 23 of a pump motor 12, and the pump motor 12 is started. When it is connected to the contact (b) side, the voltage dropped to the voltage not automatically starting the pump motor 12 is applied to the motor coil 34 by an insulating transformer 35. Accordingly, when a pump device 10 is installed in the high-temperature and high-humidity environment, the dewing on the motor can be prevented.
|
