Current transformer and electric energy meter

Details Current transformer and electric energy meter Current transformer and electric energy meter

2008-08-13

2010-02-02

Nguyen, Ha Tran T (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With coupling means

C324S11700H, C324S253000, C702S057000, C702S064000, C336S173000, C336S182000

Reexamination Certificate

active

07656149

ABSTRACT:
A current transformer detects a sine-wave alternating current having a maximum effective current value Imax(Arms) and a frequency f(Hz) and a half-sine-wave rectified current having a maximum peak value Ipeak(Aop) and a frequency f(Hz) in a primary winding, consisting of at least one magnetic core with one turn of primary winding and at least one multiple turns of secondary winding to which a detecting resistor is connected.

REFERENCES:
patent: 4274052 (1981-06-01), Gentry et al.
patent: 4847554 (1989-07-01), Goodwin
patent: 6563411 (2003-05-01), Otte et al.
patent: 6674278 (2004-01-01), Uesugi
patent: 6984979 (2006-01-01), Edel
patent: 7359809 (2008-04-01), Bruno
patent: 2003/0080847 (2003-05-01), Radzelovage
patent: 2232493 (1990-12-01), None

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