| 摘要 |
PURPOSE:To improve cooling effect, miniaturize a blower and a gas insulating transformer, and thus to improve reliability for continuous operation by filling a motor for gas circulating blower with insulating liquid. CONSTITUTION:The motor 3b for the gas circulating blower 3 is filled with the insulating liquid 5 internally. Since liquid is better than gas in thermal conductivity, temperature of the insulating liquid can be set lower than that of insulating gas 4, which may improve cooling efficiency of the motor. Then, seizure can also be prevented by utilizing the insulating liquid for lubricant of a rotary shaft. As keeping safety of an apparatus without impairing incombustibility and inexplosiveness, the apparatus can be miniaturized generally to light weight consequently. |
