Remote current detector

Details Remote current detector Remote current detector

1983-07-13

1985-09-03

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

324251, G01R 3300, G01R 1900

Patent

active

045395209

ABSTRACT:
A remote current sensor for use in a fault detector for an electrical transmission system. The remote current sensor includes a Hall effect transducer for measuring the magnetic field surrounding a conductor of the transmission system to thereby monitor the currents flowing through the conductor. The transducer is positioned between a pair of tapered pole pieces for concentrating low density magnetic flux in the air into a high density magnetic flux focused onto the transducer. The pole pieces enable the sensors to be positioned a distance from the conductor which is greater than the electrical arcing distance so as to allow use of the air gap between the conductor and sensor as insulation.

REFERENCES:
patent: 2774890 (1956-12-01), Semmelman
patent: 3197880 (1965-08-01), Rice et al.
patent: 3693085 (1972-09-01), Beard
patent: 3885212 (1975-05-01), Herbert
patent: 4283643 (1981-08-01), Levin
patent: 4394619 (1983-07-01), Gschwandtner

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