Apparatus for monitoring voltage on a high voltage overhead transmission line
First Claim
1. Apparatus for monitoring voltage on a high voltage aerial transmission line comprising, in combination:
- A. an electrically conductive housing removably mounted on a high voltage aerial transmission line;
B. means electrically connecting said housing to the transmission line whereby said housing said housing assumes the electrical potential of the transmission line;
C. a dielectric sheet adhered to the exterior surface of said housing;
D. a metallic plate adhered in overlying relation to the exposed surface of said sheet, whereby said housing and said plate constitute the electrodes of a first capacitor and the capacitive coupling of said plate with the surrounding environment constitutes a second capacitor connected with said first capacitor as a capacitive voltage divider;
E. circuitry situated within said housing responsive to the voltage appearing on said plate for developing an ouput signal indicative of the transmission line voltage; and
F. a lead connected with said plate and admitted through an opening in said housing for connection with said circuitry situated within said housing.
3 Assignments
0 Petitions
Accused Products
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.
55 Citations
2 Claims
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1. Apparatus for monitoring voltage on a high voltage aerial transmission line comprising, in combination:
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A. an electrically conductive housing removably mounted on a high voltage aerial transmission line; B. means electrically connecting said housing to the transmission line whereby said housing said housing assumes the electrical potential of the transmission line; C. a dielectric sheet adhered to the exterior surface of said housing; D. a metallic plate adhered in overlying relation to the exposed surface of said sheet, whereby said housing and said plate constitute the electrodes of a first capacitor and the capacitive coupling of said plate with the surrounding environment constitutes a second capacitor connected with said first capacitor as a capacitive voltage divider; E. circuitry situated within said housing responsive to the voltage appearing on said plate for developing an ouput signal indicative of the transmission line voltage; and F. a lead connected with said plate and admitted through an opening in said housing for connection with said circuitry situated within said housing. - View Dependent Claims (2)
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Specification