GFCI with auxiliary coil current blocking means and improved tes

Details GFCI with auxiliary coil current blocking means and improved tes GFCI with auxiliary coil current blocking means and improved tes

1995-05-31

1996-01-30

Wieder, Kenneth A.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of ground fault indication

340650, 361 45, H02H 326

Patent

active

054883032

ABSTRACT:
A ground fault interrupter 10 includes a core 12. Two load current-carrying wires 14, 16 pass through the core 12. A primary coil 44 is carried on the core 12 for sensing a current imbalance in the wires 14, 16. An auxiliary coil 18 is wound on the core 12. A pair of back-to-back zener diodes 20 is connected in series with the coil 18 to supply current to the coil 18 when an applied voltage exceeds a predetermined value between wires 14 and 16 or between either one of the and ground.

REFERENCES:
patent: 3356939 (1967-12-01), Stevenson
patent: 3891895 (1975-06-01), Wittlingen
patent: 3978400 (1976-08-01), Pettit
patent: 4021729 (1977-05-01), Hudson, Jr.
patent: 4037155 (1977-07-01), Ahmed
patent: 4180841 (1979-12-01), Engel
patent: 4598331 (1986-07-01), Legatti

Affiliated with

Also associated with

Rating

GFCI with auxiliary coil current blocking means and improved tes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with GFCI with auxiliary coil current blocking means and improved tes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GFCI with auxiliary coil current blocking means and improved tes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-158462