Power monitor system

Details Power monitor system Power monitor system

1980-04-28

1982-06-01

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With phase sequence network analyzer

361 77, 361 85, 361 90, 361 91, 361 92, 340660, H02H 300

Patent

active

043331190

ABSTRACT:
Electrical apparatus to monitor electrical three-phase power includes circuitry to protect three-phase equipment from excessive variations in line voltage, phase to phase unbalance, and reverse phase sequencing; to protect personnel against automatic restart of equipment at return of line power; and protect power sources against overload at return of line power, after power interruptions.

REFERENCES:
patent: 3535591 (1970-10-01), Holmquest
patent: 3571707 (1971-03-01), Houck
patent: 3678499 (1972-07-01), McCarty
patent: 3743889 (1973-07-01), Lopez-Batiz
patent: 3745375 (1973-07-01), Huruse
patent: 3778801 (1973-12-01), Nudelmont
patent: 3851216 (1974-11-01), Clarke et al.
patent: 4027204 (1977-05-01), Norbeck
patent: 4215381 (1980-07-01), Heisinger

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