| 摘要 |
<p>PURPOSE:To obtain a gas insulated switchgear miniaturized and excellent in conducting performance, by decreasing the friction coefficient of a hollow section which comes into contact with a bar projection. CONSTITUTION:A rolling bearing 9 is inserted into a hollow section 3a of a conductor 3, of which a guide rod 7 is inserted inside an inner ring 9a. The outside circumference of the conductor 3 keeps contact with a sliding contact piece 6. The conductor 3 is supported by the force of a spring which acts from outside to inside. As the conductor 3 and the rolling bearing 9 inserted thereto receive the force downwards, the upper part of the inner ring 9a of the rolling bearing 9 comes into contact with the upper part of the guide rod 7 and the balance of force, up and down, is maintained by the reaction force of the same strength as in the external force F. With the counterclockwise rotation by this force F, the conductor 3 rotates counterclockwise, too. In this way, since no inertial moment is transmitted between the inner ring 9a and outer ring 9c of the rolling bearing 9, the force is suppressed with which the conductor 3 is going to rotate itself around the center of gravity.</p> |
