Three phase electrical load protection device

Details Three phase electrical load protection device Three phase electrical load protection device

1987-06-12

1989-04-25

Jennings, Derek S.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361 91, 361 92, H02H 320, H02H 324

Patent

active

048253286

ABSTRACT:
A three phase electrical load protection device is disclosed including an input transducer for detecting each phase voltage and the direction of rotation of the phases of a three phase power system. A control monitor is disclosed for monitoring signals from the input transducer representative of the highest and lowest phase voltages and the direction of rotation of the phases for controlling an output device for disconnecting the electrical load when improper supply conditions are detected and monitored.

REFERENCES:
patent: 3341748 (1967-09-01), Kammiller
patent: 3535591 (1970-10-01), Holmqueot
patent: 3590325 (1971-06-01), McMillen
patent: 3657603 (1972-04-01), Adams
patent: 3679964 (1972-07-01), Nowell
patent: 3800198 (1974-03-01), Graf et al.
patent: 3813667 (1974-05-01), Smith
patent: 3836790 (1974-09-01), Becker
patent: 4333119 (1982-06-01), Schoenmeyr
patent: 4507713 (1985-03-01), Hsich
patent: 4584623 (1986-04-01), Bello et al.
patent: 4703191 (1987-10-01), Ferguson

Affiliated with

Also associated with

Rating

Three phase electrical load protection device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three phase electrical load protection device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three phase electrical load protection device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1200070