| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent an isolated operation preventive device which can prevent the isolated operation without fail even in a high-density interconnection state. <P>SOLUTION: This isolated operation preventive device is equipped with a generator 2 for generating DC power, and a power converter 3 for converting the DC generated by the generator 2 into AC power of specified voltage and frequency, and actively prevents the isolated operation of a system-interconnected generator 20 interconnected with a system power source 30, at power failure of the system power source 30. This is equipped with a time signal generating means 5 which receives a reference time signal having reference time information and generates an internal time signal T adjusted based on the reference time information contained in the received reference time signal, and a power failure judging processing means 4 which executes the power failure judging processing by the active system of the system power source 30, synchronizing with the specified timing based on an internal time signal T. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
