| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a phase separation bus and a noise deterrence device which can solve the problem that the current of a cooling air flowing among multiple arc-suppressing boards mounted on an arc-suppressing board device of a phase separation bus can generate a whirl which changes depending on the flow velocity etc. and a big noise source is created when the vibration from this whirl and the arc-suppressing board device resonate with each other. <P>SOLUTION: An arc-suppressing board device mounted inside a wind guiding box of a phase separation bus comprises multiple arc-suppressing boards, between each of which a bar is provided, changing the situation where a whirl of a cooling air is generated in order to remove the resonance with the arc-suppressing boards so that a silent phase separation bus can be achieved. <P>COPYRIGHT: (C)2012,JPO&INPIT |
