Protection of polyphase equipment

Details Protection of polyphase equipment Protection of polyphase equipment

1977-10-20

1979-10-30

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With phase sequence network analyzer

H02H 326

Patent

active

RE0301345

ABSTRACT:
Motor protector apparatus for independently sensing the respective positive, negative, and zero sequence currents flowing in the supply lines to a three phase motor for interrupting power to the motor whenever such positive, negative, or zero sequence components reach levels indicative of abnormal operating conditions. The protector network includes bridge means for segregating the negative and positive sequence components, indicators for visually displaying the source of the abnormality, and means for restoring power to the motor after a defined time period.

REFERENCES:
patent: 1806392 (1931-05-01), Genkin
patent: 1939046 (1933-12-01), Fortescue et al.
patent: 2296784 (1942-09-01), Harder
patent: 3209204 (1965-09-01), Rockefeller
patent: 3462646 (1969-08-01), Bell

Affiliated with

Also associated with

Rating

Protection of polyphase equipment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protection of polyphase equipment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection of polyphase equipment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-13864