Apparatus for monitoring voltage on a high voltage overhead transmission line
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United States of America Patent
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Sep 9, 1986
Grant Date -
N/A
app pub date -
Oct 31, 1983
filing date -
Oct 31, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A toroidal shaped metallic housing, mounted on and electrically connected with a high voltage transmission line, is adapted with a metal plate and an intervening dielectric sheet adhered to its exterior surface. The housing, tied to the transmission line voltage, and the metal plate constitute the electrodes of a first capacitor of a capacitive voltage divider, while the capacitive coupling of the metallic plate with the surrounding environment provides a second voltage divider capacitor. The voltage appearing on the plate is processed by circuitry within the housing to derive a signal indicative of the transmission line voltage.
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