Apparatus for measuring an a.c. current in a cable

Details Apparatus for measuring an a.c. current in a cable Apparatus for measuring an a.c. current in a cable

1996-06-10

1997-07-29

Wieder, Kenneth A.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

324127, 343702, 34087017, 33464, 33472, G01R 122

Patent

active

056525060

ABSTRACT:
An apparatus for measuring an a.c. current flowing in an electric cable comprises a pair of jaws for receiving the cable and which are movable towards one another to engage the opposite sides of the cable. A potentiometer generates a signal ("cable size signal") corresponding to the relative positions of the jaws. A set of coils is provided adjacent the jaws to detect the magnetic field generated by current flowing in the cable. A circuit in the housing is responsive to the cable size signal and the voltage induced in the coil for determining the amplitude of the current flowing in the cable and displaying the same on a display.

REFERENCES:
patent: 4827272 (1989-05-01), Davis

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