Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Using radiant energy
Patent
1977-01-03
1977-10-18
Kominski, John
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Using radiant energy
324123R, 324123C, 324127, 250209, G01R 3100
Patent
active
040548341
ABSTRACT:
Shunt means supply a diode bridge with an alternating current proportional to the AC to be measured. The bridge has at least two electroluminescent diodes which emit two alternating streams of half-wave light pulses which are supplied to two fibre optic systems. These convey the light signals to a safe distance from the high tension line where two light receptors receive the respective streams of half-wave light pulses and apply electrical signals proportional thereto to opposite inputs of a differential amplifier. The output of the amplifier is a readily measurable AC. Balancing means may be provided to compensate for any difference in the overall transmission paths for the two half-wave pulse streams. A resistive load may be provided adjacent the line to sink the current flowing through the diode bridge.
REFERENCES:
patent: 2829343 (1958-04-01), Miller
patent: 2948853 (1960-08-01), Nylander
patent: 3340427 (1967-09-01), Bisso
patent: 3346811 (1967-10-01), Perry et al.
patent: 3430054 (1969-02-01), Klein
patent: 3718822 (1973-02-01), Pascoe
patent: 3860868 (1975-01-01), Lindell et al.
patent: 3943367 (1976-03-01), Baker
Boirat Robert
Davila Claude
Moreau Christian
Compagnie Generale d'Electricite S.A.
Kominski John
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