Patent US 3708749A

Patent number	US 3708749A (click link for details and documents via Google Patents)
Title	Current transformer
Inventors	Glenn Bateman, John A. Roberts
Company	Tektronix Inc
Filing date	1971-03-18
Grant date	1973-01-02

Related products:

Manufacturer	Model	Description	Introduced	Designers
Tektronix	CT-5	High Current Transformer	1971

A current transformer in the form of a probe includes a removable bucking winding for canceling core flux attributable to the D.C. component of current in an input conductor. The bucking winding is A.C. coupled to the transformer's output circuit and contributes a portion of the output signal.

See CT-5.