Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2006-01-24
2006-01-24
Martin, David (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S599000, C318S727000, C318S801000, C318S255000
Reexamination Certificate
active
06989650
ABSTRACT:
A control system for a polyphase AC motor having a predetermined horsepower rating is provided comprising a plurality of integrated control systems each rated at less than the hoursepower rating for the motor and having a rectifier section, an inverter section, and a controller section, and a parallel controller interfaced to each integrated control system.
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Locke Liddell & Sapp LLP
Martin David
McCloud Renata
Oilfield-Electric-Marine, Inc.
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