Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Polyphase
Patent
1990-11-15
1992-02-25
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Polyphase
324110, G01P 1124
Patent
active
050916904
ABSTRACT:
A method and apparatus for enabling the continuous monitoring of the operational state of circuit components includes a scheme for generating a plurality of voltage signals representing neutral-to-line voltages of the system and adding to each of those signals a second signal, each second signal being identical. This addition is done vectorially to yield a modified signal. A representation of the modified signal as acted upon by the circuit to be monitored is compared with a representation of the neutral-to-line voltage signal to yield an output signal representative of the operational state of the circuit components.
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D'Antonio Michael J.
Gibbs Irving A.
Lane Lawrence J.
Lawson Rodney A.
General Electric Company
Nguyen Vinh P.
Renner Arnold E.
Wieder Kenneth A.
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