| 摘要 |
PURPOSE:To completely discharge bubbles and gases to the outside which floated off and are staying within a pocket projectively provided on the outer case of a stationary induction electric apparatus, by providing an air vent in the mounting flange of the sleeve of a conductor bushing. CONSTITUTION:A very small amount of gases and bubbles contained in an insulating oil float off and stay in the upper portion of a pocket 4. Since these gases and bubbles have an adverse effect on insulation, they should be completely discharged to the outside. Thus, an air vent is provided in the mounting flange of the sleeve of a condenser bushing 1 to be mounted above the pocket 4, it is connected to a Pitot relay 5 by a connecting pipe 6, and these staying bubbles and gases are discharged to the outside through the Pitot relay 5. In addition, even if an abnormal condition occurs in a stationary induction electric apparatus and a gas is generated, the gas does not stay in the upper portion of the pocket 4, but is completely discharged to the outside. |
