Current sensor operating according to the compensation theorem

Details Current sensor operating according to the compensation theorem Current sensor operating according to the compensation theorem

1995-06-26

1996-10-15

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

324 99R, 324127, G01R 120, G01R 1706

Patent

active

055657656

ABSTRACT:
A current sensor operating according to the compensation thereon which is particularly suited for acquiring high currents has a secondary winding of the current transformer is divided into at least two sub-windings that are supplied by different amplifiers in an amplifier arrangement. This results in symmetrical loading of the supply voltage so that twice as high a compensation current is enabled given the same internal resistance of the sub-windings and same resistance of the terminating resistor as in known current sensors of this type.

REFERENCES:
patent: 2928048 (1960-03-01), Postal
patent: 3323056 (1967-05-01), Haley
patent: 3323057 (1967-05-01), Haley
patent: 3422351 (1969-01-01), Pihl
patent: 3525041 (1970-08-01), Velsink
patent: 3573616 (1971-03-01), Kahen
patent: 3885212 (1975-05-01), Herbert
patent: 4961049 (1990-10-01), Ghislanzoni
"Alternating-Current Circuit Theory", 2nd Ed., Reed, pp. 345-347 (1956) (month unavailable).

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