Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1985-11-05
1989-02-28
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
324126, G01R 120
Patent
active
048089176
ABSTRACT:
A self contained sensor module mounted on a power transmission line. The module is capable of measuring various parameters such as line current, voltage, conductor temperature, and ambient temperature. The parameter values are processed by sensor electronics which digitize and transmit the values to a ground receiver. The sensor module normally derives its power through electromagnetic induction resulting from current flowing through the transmission line. The module contains a power back-up system, including a battery, which allows sensor operation with minimum current and zero current in the transmission line. The battery is float charged while the sensor is mounted on the transmission line using excess energy derived through electromagnetic induction. When line current drops to a predetermined minimum value, float charging is disable and the battery supplies power to the sensor module. When battery power is depleted to a predetermined level, data processing and transmission are disabled until the battery can be recharged.
REFERENCES:
patent: 2724821 (1955-11-01), Schweitzer, Jr.
patent: 3573483 (1971-04-01), White
patent: 3757131 (1973-09-01), Krutz et al.
patent: 3980935 (1976-09-01), Worst
patent: 4038559 (1977-07-01), Chun et al.
patent: 4158810 (1979-06-01), Leskovar
patent: 4180745 (1979-12-01), Bartlett et al.
patent: 4287465 (1981-09-01), Godard et al.
patent: 4384289 (1983-05-01), Stillwell et al.
patent: 4420752 (1983-12-01), Davis et al.
patent: 4451742 (1984-05-01), Aswell
patent: 4471233 (1984-09-01), Roberts
patent: 4528459 (1985-07-01), Wiegel
patent: 4559456 (1985-12-01), Yamamoto et al.
patent: 4571531 (1986-02-01), Lin
patent: 4583004 (1986-04-01), Yearsin
patent: 4635055 (1987-01-01), Fernandes et al.
Fernandes Roosevelt A.
Sieron Richard L.
Eisenzopf Reinhard J.
Nguyen Vinh P.
Niagara Mohawk Power Corporation
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