Electricity: power supply or regulation systems – External or operator controlled – Using a transformer or inductor as the final control device
Reexamination Certificate
2006-02-21
2008-10-07
Sterrett, Jeffrey L (Department: 2838)
Electricity: power supply or regulation systems
External or operator controlled
Using a transformer or inductor as the final control device
C323S257000
Reexamination Certificate
active
07432697
ABSTRACT:
A control system providing a universal input for receiving a control signal for actuating tap-changing equipment. The system accommodates virtually any signal voltage level commonly used for control of the tap-changing equipment, modifies the received signal to a desired format, and inputs the modified signal to a controller for decoding and actuation of the tap-changing motor. The system is fully electronic, eliminating the use of electromechanical contacts for control of the tap-changer and providing a flexible approach to monitoring and diagnostics even from a location remote from the tap-changing equipment.
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Eriksson Per
Konov Lahan
ABB Technology Ltd.
St. Onge Steward Johnston & Reens LLC
Sterrett Jeffrey L
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