发明名称 |
Method for dampening acoustical noise in a dry-type transformer |
摘要 |
A dry-type power transformer has a lower acoustical noise level by inserting sound absorbing pads at predetermined locations in an air gap formed longitudinally between a low voltage coil and its corresponding leg member of the transformer's iron core. The pads function as baffles to lower the acoustical noise caused by magnetostriction and other forces when the transformer is energized. The pads are arranged in alternate patterns between the top and the bottom of the air gap.
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申请公布号 |
US6381834(B1) |
申请公布日期 |
2002.05.07 |
申请号 |
US19970955811 |
申请日期 |
1997.10.22 |
申请人 |
SQUARE D COMPANY |
发明人 |
MAY SCOTT EDWARDS |
分类号 |
H01F27/30;H01F27/33;(IPC1-7):H01F41/12 |
主分类号 |
H01F27/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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