Current summing arrangement for ground fault detection

Details Current summing arrangement for ground fault detection Current summing arrangement for ground fault detection

1991-08-27

1993-03-16

Pellinen, A. D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

H02H 316, H02H 3347

Patent

active

051950090

ABSTRACT:
An arrangement for producing a signal representative of the vectorial sum of the currents in a plurality of electric conductors in an electrical system. The arrangement includes a current transformer associated with each of the electrical conductors, and a differential current transformer for summing the current produced by each of the current transformers in response to currents in the electrical conductors. The differential current transformer is coupled to a rectifier and resistor arrangement which allows a voltage signal to be produced which is representative of the sum of the currents in the current transformers. The voltage signal is also representative of the sum of currents in the phase conductors of the electrical system.

REFERENCES:
patent: 3786311 (1974-01-01), Hobson, Jr. et al.
patent: 3887867 (1975-06-01), Safer et al.
patent: 4121269 (1978-10-01), Hobson, Jr.
patent: 4234900 (1980-11-01), Miyazaki et al.
patent: 4258403 (1981-03-01), Shimp
patent: 4380785 (1983-04-01), Demeyer et al.
patent: 4443828 (1984-04-01), Legrand et al.
patent: 4631625 (1986-12-01), Alexander et al.
patent: 4758919 (1988-07-01), Stewart
patent: 4761704 (1988-08-01), Fraisse et al.
patent: 4853819 (1989-08-01), Suwa et al.
patent: 4939615 (1990-07-01), Brant et al.
patent: 4947126 (1990-08-01), May et al.
patent: 5095398 (1992-03-01), Winter et al.

Affiliated with

Also associated with

Rating

Current summing arrangement for ground fault detection 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 summing arrangement for ground fault detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Current summing arrangement for ground fault detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-355143