| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a smoke-state gas containing oil particles from being discharged from an oil tank for accumulating an oil discharged from a pressure release device of an oil containing electric device.SOLUTION: An oil containing electric device includes: a tank 1 which houses an electric device body with an insulation oil; a pressure release device 3 which is attached to the tank 1 through a pressure release pipe 2 and conducts pressure release operation when pressure in the tank 1 increases; an oil tank 5 which receives the oil, which is jetted from a pressure release port when the pressure release device 3 conducts the pressure release operation, through an oil guide pipe 6; and a ventilation pipe 70 which allows an upper space in the oil tank 5 to communicate with an exterior part so as to prevent increase of the pressure in the oil tank 5. A bent pipe which has two or more folded parts 70a, 70b between one end and the other end is used as the ventilation pipe 70. The ventilation pipe 70 is attached to the oil tank 5 so that the one end opens in the upper space in the oil tank 5 and the other end is opened to the lower side in the exterior part of the oil tank 5.</p> |
