发明名称 |
Apparatus and method for rapid fault detection and transfer in a utility-interactive uninterruptible power supply |
摘要 |
A method and apparatus are disclosed for improving the disturbance pass through characteristics of a line interactive uninterruptible power supply ("UPS"). One disclosed technique uses a naturally commutated fast utility disconnect switch, wherein the switch is self commutated by the UPS inverter forcing the current through the switch to zero. A second disclosed technique uses a gate commutated fast utility disconnect switch and the associated snubber circuits, wherein the fast utility disconnect is opened quickly upon occurrence of a line fault and the energy generated in interrupting the line current is dissipated by the snubber circuits.
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申请公布号 |
US6768223(B2) |
申请公布日期 |
2004.07.27 |
申请号 |
US20010872944 |
申请日期 |
2001.06.01 |
申请人 |
LIEBERT CORPORATION |
发明人 |
POWELL JEFFREY M.;BAKER ROBERT W. |
分类号 |
H02J9/06;(IPC1-7):H02J7/00 |
主分类号 |
H02J9/06 |
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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