Variable voltage transformer

Variable voltage transformer

Variable Voltage Transformer Abstract In a first aspect there is disclosed a variable voltage transformer (772), the variable voltage transformer comprises a primary winding (754) configured to be coupled to a voltage power source that provides a first voltage across the primary winding and a second...

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Hauptverfasser: DEN BOESTERT, JOHANNES LEENDERT WILLEM CORNELIS, VINEGAR, HAROLD J, LINEY, DAVID JOHN, ARORA, DHRUV, MARWEDE, JOCHEN, MO, WEIJAN, BURNS, DAVID BOOTH, PATNI, SANDEEP, FOWLER, THOMAS DAVID, HARVEY III, ALBERT DESTREHAN, BRAVO, JOSE LUIS, HWANG, HORNG JYE (JAY), CRUZ, ANTONIO MARIA GUIMARAES LEITE, MUYLLE, MICHEL SERGE MARIE, SON, JAIME SANTOS, MASON, STANLEY LEROY, STANECKI, JOHN ANDREW, VENDITTO, JAMES JOSEPH, RENKEMA, DUURT, FONSECA OCAMPOS, MANSURE, ARTHUR JAMES, NAIR, VIJAY, CARROLL, MARK THOMAS, COSTELLO, MICHAEL SCOTT, SHEN, CHONGHUI, BEER, GARY LEE, CARDINAL, PAUL GREGORY, LI, BUSHENG, KARANIKAS, JOHN MICHAEL, MCKINZIE II, BILLY JOHN, NGUYEN, SCOTT VINH, SANDBERG, CHESTER LEDLIE, ERNESTO RAPHAEL, GUIMERANS, ROSALVINA RAMONA, PRINCE-WRIGHT, ROBERT GEORGE, HARRIS, CHRISTOPHER KELVIN, AYODELE, OLUROPO RUFUS, CAO, RENFANG RICHARD, BASS, RONALD J, XIE, XUEYING, RAGHU, DAMODARAN, ROES, AUGUSTINUS WILHELMUS MARIA, KIM, DONG-SUB, RYAN, ROBERT CHARLES, EDBURY, DAVID ALSTON, MILLER, DAVID SCOTT, MACDONALD, DUNCAN CHARLES, UWECHUE, UZO PHILLIP
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
MINING OR QUARRYING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:Variable Voltage Transformer Abstract In a first aspect there is disclosed a variable voltage transformer (772), the variable voltage transformer comprises a primary winding (754) configured to be coupled to a voltage power source that provides a first voltage across the primary winding and a secondary winding (756) electrically isolated from the primary winding, wherein the secondary winding is configured to step down the first voltage to a second voltage that is a preset percentage of the first voltage. A multistep load tap changer (7) coupled to the secondary winding is provided, wherein the load tap changer divides the second voltage into a selected number of voltage steps, the voltage steps incremented from a selected minimum percentage of the second voltage to a selected maximum percentage of the second voltage, wherein an electrical load is configured to be coupled to the multistep load tap changer to provide electrical power to the load with a selected voltage, the multistep load tap changer being configured to tap a selected voltage step in order to provide the selected voltage to the electrical load.