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autotransformer

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autotransformer

[¦ȯd·ō·tranz¦fȯr·mər]
(electricity)
A power transformer having one continuous winding that is tapped; part of the winding serves as the primary and all of it serves as the secondary, or vice versa; small autotransformers are used to start motors.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
With the help of the loan, NTDC is going to purchase autotransformers and shunt reactors for its high voltage transmission lines and grid stations.
NTDC rejects lowest bidder's offer
Index Terms"24-pulse ACDC converter, double zigzag-connected autotransformer, power quality, direct torque controlled induction motor drive (DTCIMD).
DOUBLE ZIGZAG-CONNECTED AUTOTRANSFORMER-BASED 24-PULSE AC-DC CONVERTER FOR POWER QUALITY IMPROVEMENT
In the proposed structure, three 5-leg diode-bridge rectifiers are paralleled via three interphase transformers and fed from an autotransformer. Hence, a 30-pulse output voltage is obtained.
A novel T-connected autotransformer based 30-pulse AC-DC converter for power quality improvement
This autotransformer transmits the high voltage of 330 kV AC to 110/10 kV AC and has three windings in any of three phases: one primary and two secondary windings.
Electric and magnetic fields of the high voltage autotransformer/Aukstosios itampos autotransformatoriaus elektrinis ir magnetinis laukai
The lines have been connected to the new autotransformer.
Azerbaijan continuing power system rehabilitation program
Request of offers from international eligible bidders for the supply of 1 x 375 MVA, 500/ 220/ 11 kV autotransformer required for Samallout 500/ 220/ 11 kV substation extension (Package B) under funding from EIB - European Investment Bank.
Request of offers from international eligible bidders for the supply of 1 x 375 MVA, 500/ 220/ 11 kV autotransformer required for Samallout 500/ 220/ 11 kV substation extension (Package B) under funding from EIB - European Investment Bank
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