Device for measuring extra high voltage line current

Details Device for measuring extra high voltage line current Device for measuring extra high voltage line current

1974-05-29

1976-09-28

Rolinec, R. V.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

324127, G01R 1900, G01R 1926

Patent

active

039834778

ABSTRACT:
A ferromagnetic element tuned oscillator is located close to a current carrying conductor and is provided with a power supply energizing means. Means are provided for transmitting the information carried by the electro-magnetic wave from an extra high voltage potential tuned oscillator to a receiving means at ground level together with frequency measuring means. A frequency discriminator converts the received signal frequency variations into an output signal which is an analogue of the current flowing in the extra high voltage conductor. The output signal from the tuned oscillator can be transmitted either through free space or a dielectric wave guide, which provides the necessary isolation between the extra high voltage conductor and the receiver.

REFERENCES:
patent: 2836791 (1958-05-01), Kaplan
patent: 3102243 (1963-08-01), Zaleski
patent: 3235819 (1966-02-01), Carvelas et al.
patent: 3460042 (1969-08-01), Harner
patent: 3546624 (1970-12-01), Omori
patent: 3569835 (1971-03-01), Harner

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