AC power backfeed protection based on phase shift
    1.
    发明授权
    AC power backfeed protection based on phase shift 有权
    基于相移的交流电源反馈保护

    公开(公告)号:US07282813B2

    公开(公告)日:2007-10-16

    申请号:US11008264

    申请日:2004-12-10

    IPC分类号: H02H7/00

    摘要: A system having input terminals including line and neutral terminals for receiving AC power from a first AC source and having output terminals including output line and neutral terminals for receiving AC power from output terminals of a second AC source and for supplying AC power to a load, has a transfer switch configurable to connect the input terminals to the output terminals or to isolate the input terminals from the output terminals. When the transfer switch is configured to isolate the output terminals from the input terminals, the second AC source is caused to cease supplying power to the output terminals when after phase shifting the voltage produced by the second source the voltage at the input terminals is in-phase with that voltage.

    摘要翻译: 一种具有输入端子的输入端子,包括用于从第一AC源接收AC电力的线路和中性端子,并且具有包括输出线和中性端子的输出端子,用于从第二AC源的输出端子接收AC电力并且用于向负载提供AC电力, 具有可配置为将输入端子连接到输出端子或将输入端子与输出端子隔离的转换开关。 当转换开关被配置为将输出端子与输入端子隔离时,使得第二AC电源在对由第二源极产生的电压进行相移之后停止向输出端子供电, 与该电压相位。