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This paper introduces the development of transient polarity comparison principles for power line protection. A brief introduction to the history of power system protection is first given, which outlines the background of the new developments. The paper then introduces the new protection techniques based on fault transient polarity detection. The descriptions of new relaying techniques based on the...
The public's response to power blackouts provides a valuable insight into their concerns about the industry and provides an invaluable demonstration of society's dependency on bulk electricity supplies. The London blackout and one in Birmingham a week later were both caused by technical problems, also they sparked wide-ranging debates about the future and state of the power supply industry. The immediate...
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