autotransformer

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Related to autotransformers: Variac

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 ?
The Advisor System is being used to monitor 400 MVA, 500 KV autotransformers.
The following works should be done at the substation: - dismantling of two autotransformers with the subsequent installation of two autotransformers with 200 MVA capacity 330/220/10 kV voltage; - full replacement of the open 330 and 110 kV switchgear with 330 and 110 ?
Alexey Borodin assumed the cost might be grown over the proposal of the National Electric Grid of Kyrgyzstan to provide additional equipment and 4 autotransformers on Datka, Kemin and Ala-Archa substation.
Contract notice: Contracting minho line - electrification and rehabilitation of nine / valencia section - design / construction of traction substation vila fria, autotransformers stations and neutral zone (econtratos 5010015369).
Instead of the traditional means of reduced-voltage starting using autotransformers, reactors, or resistors, the ASTAT XT Soft Starter is a reduced-voltage starter that uses advanced digital technology to protect and control motors.
Contract notice: Supply of autotransformers hta and auxiliary services mv / lv transformers.
Technipower products include autotransformers sold under the Variac name, and customized power supplies.
Package I - transformers and autotransformers up to 160 MVA (inclusive) installed in substations located in the area managed operationally by PSE - Branch in Warsaw, PSE SA - Branch in Radom, PSE SA - Branch in Bydgoszcz,
Construction of 2 posts autotransformers 50 / 2x27.
Supply, installation and commissioning of two (2) new autotransformers 400/110/10 kV, 300 MVA including transformer foundation and oil pit in substations Ferizaj 2 and Peja 3, Lot 3: Transmission Lines
They are located on all three 230/138 kV autotransformers at the Sampson substation.