Current transformer for direct and alternating current

Details Current transformer for direct and alternating current Current transformer for direct and alternating current

1986-01-24

1987-07-21

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

324117R, 324127, 323250, 323357, G01R 3300, G01R 1900, G05F 1325, H01F 4006

Patent

active

046821015

ABSTRACT:
Two ferromagnetic cores (11, 12) are provided for a transformer, only one of the cores (11) exhibits an air gap (13) in which a Hall effect element (3) is housed. The current flowing in a conductor (10) can be direct or alternating current and induces in the core (11) a corresponding magnetic field which makes it possible to obtain a signal on the element (3). This signal is amplified by an amplifier (8). The output current from amplifier (8) is applied to a winding wound around both cores (11, 12). For direct current and low frequency current, the winding current is proportional to the current in conductor (10). When the frequency of the current flowing through conductor (10) exceeds a certain value (several kHz), the gain of the amplifier (8) diminishes. A linear relationship between the conductor current and the current in the winding is maintained, however, because the high frequency is transmitted to the winding by the core (12).

REFERENCES:
patent: 3525041 (1970-08-01), Velsink
patent: 4482862 (1984-11-01), Leehey

Affiliated with

Also associated with

Rating

Current transformer for direct and alternating current does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Current transformer for direct and alternating current, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current transformer for direct and alternating current will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-209408