Electricity: power supply or regulation systems – External or operator controlled – Using a transformer or inductor as the final control device
Patent
1994-09-29
1996-08-13
Wong, Peter S.
Electricity: power supply or regulation systems
External or operator controlled
Using a transformer or inductor as the final control device
323255, G05F 504
Patent
active
055459749
ABSTRACT:
A voltage regulator controller of the types used with a multi-tap voltage regulator transformer having a plurality of tap positions for adjusting an output voltage in discrete tap position steps is provided with a number of control algorithms which are dynamically changed responsive to the measured oil temperature in the transformer. In one embodiment, the voltage regulator controller includes a memory having tap movement control code stored therein for controlling the tap positions in accordance with a plurality of tap position control algorithms, means for measuring the oil temperature of the voltage regulator transformer, means for monitoring the oil temperature within the transformer and, means for selecting one of the tap position control algorithms as being active as a function of the oil temperature.
REFERENCES:
patent: 4591779 (1986-05-01), Carpenter, Jr. et al.
patent: 5136233 (1992-08-01), Klinkenberg et al.
patent: 5450002 (1995-09-01), Dunk
Harlow James
Laplace Carl J.
Trainor Jack
Boles Donald M.
Han Y. J.
Siemens Energy & Automation Inc.
Wong Peter S.
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