autotransformer


Also found in: Dictionary, Medical, Wikipedia.
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.
References in periodicals archive ?
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.
Step Description of activities 1 applying voltage to the 400 kV Zarnowiec substation 2 Zarnowiec--Gdansk 400 kV line inclusion (54 km) 3 400/220 kV/kV autotransformer inclusion in Gdansk substation 4 Gdansk--Jasiniec 220 kV line inclusion (158 km) 5 Jasiniec--Patnow 220 kV line inclusion (101 km) 6 Patnow--Podolszyce 220 kV line inclusion (123 km) 7 reactive power load inclusion (change the two parallel 220/110 kV/kV autotransformers ratio in Podolszyce substation), [Q.
Conventionally, a tap-changer autotransformer is a popular solution to the problems of under- and over-voltages.
The stand above includes the verified transformer, three measuring instruments for voltage, an autotransformer and an oscilloscope, useful to visualize the waveforms of compared voltages.
Tenders are invited for supply, laying and installation of new 3 core , 11 kv(ue), 400 sq mm and 185 sq mm cables for ca1b co2 compressor motor and autotransformer of urea-ii plant
Autotransformer is a good alternative, but the price also remains high.
Tenders are invited for Dismantling, loading and transporting of 100 MVA autotransformer from Manali to Savasapuram
Types of transformers featured in the catalog are: industrial control, super high efficiency, toroidal, high power, Class 2, triple output, low profile, encapsulated, step up/step down, autotransformer, recitifiers, chokes, 3 phase, and high frequency.