Detection of potential on high-voltage transmission lines

Details Detection of potential on high-voltage transmission lines Detection of potential on high-voltage transmission lines

1976-01-20

1976-11-09

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Nonquantitative

324 96, 324119, 324120, 324122, 324126, G01R 1914

Patent

active

039913678

ABSTRACT:
A suspension insulator used on the tower of a high-voltage transmission line has a capacitive voltage dividing pickup plate placed thereon to capacitively pick up a low-power indication of the potential carried by the line. In order to detect the potential on the plate, the potential difference between the plate and the tower is limited, rectified and applied to a neon lamp in a photo coupler. A photosensitive element in the photo coupler responds to the light from the lamp to operate a relay to control remote indicators.

REFERENCES:
patent: 3524133 (1970-08-01), Arndt
patent: 3524178 (1970-08-01), Statton
patent: 3531790 (1970-09-01), Staley
patent: 3538440 (1970-11-01), Galloway
patent: 3660757 (1972-05-01), Winslow
patent: 3775682 (1973-11-01), Ross

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