Current transformers for partial discharge detection on...

Details Current transformers for partial discharge detection on... Current transformers for partial discharge detection on...

2006-12-05

2006-12-05

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

C324S536000

Reexamination Certificate

active

07145345

ABSTRACT:
A technique for detecting defects in aircraft wiring, such as for detecting partial discharges or arcing in wiring or cables is disclosed. A high frequency current transformer (HFCT) is fixingly positioned in contact with a wire so that the wire is encircled by the HFCT. Partial discharges from a damaged wire so encircled will induce a current in the HFCT proportional to the current of the discharge. The HFCT includes a conductive coil-like pattern formed onto a flexible insulating material. The insulating material has slits between each coil-turn. The HFCT also includes a core of flexible material fitted between the coil-turns through the slits.

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G. Guanzhong et al., “Monitoring System and Method for Wiring Systems”, GE Application No. 124048; U.S. Appl. No. 10/063,603, filed May 3, 2002.

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