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Apparatus for and method of monitoring and controlling a power system

  • US 5,866,956 A
  • Filed: 04/23/1997
  • Issued: 02/02/1999
  • Est. Priority Date: 06/06/1995
  • Status: Expired due to Fees
First Claim
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1. An apparatus for monitoring a power system having an alternating current bus which includes at least one line, a neutral, and a ground, said apparatus comprising:

  • a module coupled to the bus for digitizing at least one of a voltage waveform and a current waveform present on the bus and modulating the digitized waveform onto a carrier; and

    means coupled to the bus for demodulating the digitized waveform and for calculating a parameter selected from the group consisting of average current, root mean square current, peak current, current crest factor, average voltage, root mean square voltage, peak voltage, voltage crest factor, voltage surge, current waveform shape, voltage waveform shape, current waveform harmonic structure, voltage waveform harmonic structure and combinations thereof.

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