| 发明名称 |
SOUND MITIGATION FOR AIR CORE REACTORS |
| 摘要 |
An air core reactor (47) including a plurality of concentric conductor winding packages (44, 46) wherein a force (F+) generated by the interaction of current (+) flowing through one package and a magnetic field (42) generated by the reactor is out of phase (F−) with a force generated in another package, thereby effectively mitigating audible sound generated by power operation of the reactor. In one embodiment (FIG. 3), the out of phase force may be generated when at least one winding (38c, 37d) of one package (38) is configured to conduct a current (−) that is at least 10 degrees out of phase with a current (+) conducted by another package (40) or other windings (38a, 38b) of the reactor (36). |
| 申请公布号 |
US2015170826(A1) |
申请公布日期 |
2015.06.18 |
| 申请号 |
US201314409306 |
申请日期 |
2013.07.09 |
| 申请人 |
TRENCH LIMITED |
发明人 |
Lau Tom Chiu Hung;Best Fabian;Wong Terry Wai Cheong;Chan Willie Kim Fung;Alves Sean;Tong Thong;Sharp Michael |
| 分类号 |
H01F27/28 |
主分类号 |
H01F27/28 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An air core reactor comprising:
a plurality of concentric packages of conductor windings electrically interconnecting upper and lower spiders; and at least one of the packages being configured to conduct a current that is at least 10 degrees out of phase at a power frequency with a current conducted by another package of the reactor during power operation, thereby generating a sound mitigating force within the reactor. |
| 地址 |
SCARBOROUGH CA |
