autotransformer


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Related to autotransformer: autotransformer starter

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.
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.
Index Terms"24-pulse ACDC converter, double zigzag-connected autotransformer, power quality, direct torque controlled induction motor drive (DTCIMD).
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.
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.
The lines have been connected to the new autotransformer.
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.