Electrical transmission or interconnection systems – Plural load circuit systems – Control of current or power
Patent
1997-04-23
1999-02-02
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Plural load circuit systems
Control of current or power
34031001, 34031002, 34031005, 34031006, 34031007, 34082504, 341177, 324157, 324771, G01R 3100
Patent
active
058669566
ABSTRACT:
A apparatus for monitoring and controlling a power system having an alternating current bus. The apparatus includes a module which is coupled to the bus and which digitizes and modulates at least one of a voltage waveform and a current waveform present on the bus. A control unit which is also coupled to the bus demodulates the digitized waveform and calculates 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. The calculated parameter is used to monitor conditions on the bus and control loads connected to modules of the system.
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EIA Interim Standard for EIA Home Automation Syste (CEBus), dated Oct. 1992, Index and pp. 1-6.
Marsh John K.
Timmerman Robert
Dekko Engineering, Inc.
Paladini Albert W.
Shoop Jr. William M.
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