Communications: electrical – Continuously variable indicating – Condition responsive
Patent
1981-01-23
1983-05-17
Groody, James J.
Communications: electrical
Continuously variable indicating
Condition responsive
324126, 374170, G08C 1900
Patent
active
043842895
ABSTRACT:
A toroidal shaped transponder unit is connected to a live power transmission line by means of a tripping mechanism and a hinge assembly. The unit includes means for sensing the temperature and current of the power transmission line and for transmitting the information to a local receiver. The toroid housing includes an open frame mounting hub and spoke assembly for mounting the sensors without interfering with the thermodynamics of the transmission line. The unit further includes a power coil and core assembly for receiving magnetic emanations from the transmission line and generating power to operate the electronic components within the unit.
REFERENCES:
patent: 3428896 (1969-02-01), Schweitzer
patent: 3874239 (1975-04-01), Finney
patent: 4158810 (1979-06-01), Leskovar
patent: 4268818 (1981-05-01), Davis et al.
patent: 4316142 (1982-02-01), Kuramoto
"A New Thermal Rating Approach", IEEE Power Engineering Society, Davis, Apr. 26, 1976.
"A New Thermal Rating Approach", IEEE Power Engineering Society, Davis, May 14, 1979.
"A New Thermal Rating Approach", IEEE Power Engineering Society, Davis, Mar. 30, 1977.
Fernandes Roosevelt A.
Stillwell Howard R.
Cahill Robert A.
General Electric Company
Groody James J.
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