autotransformer

(redirected from Auto-transformer)
Also found in: Dictionary, Medical, Wikipedia.
Related to Auto-transformer: 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 ?
Contract notice: Dismantling of thermal power transformers and auto-transformers.
The supply of four auto-transformers (500 MVA / 380 kV) for the substation of Ashbliyah, including erection and commissioning, via the Al-Thouki contracting company.
The nine contracts include the turnkey installation of six new 110 kV gas-insulated substations - four in Jeddah and two in Madinah; the turnkey supply of a Static VAr Compensator designed to improve power stability for Quwayyah 132 kV substation; supply of four auto-transformers for the substation of Ashbliyah; installation of three complete automation and protection systems for three 380 kV substations in the central region; supply and installation of a new iDMS control centre to manage the Madinah's electricity distribution network; and supply and installation of a turnkey telecom system to connect the Al Masher 380 kV substation to SEC's telecoms network.
Amgis also offers a assortment of other toroidal products, including audio transformers, auto-transformers, medical isolation transformers, 3-phase transformers, and high efficiency transformers.
ABB will design, manufacture, test, transport, erect and commission the 765 kV single-phase auto-transformers at the substation sites.
Qualification system with call for competition: Supply, assembly, transport, commissioning and after-sales service of auto-transformers and power transformers for the french electricity transmission network.
Auto-Transformers at Tughlakabad GIS S/S; under Establishment of 400/220 kV substations in NCT of Delhi.
It shall be crushed stone, sleepers and rails, as well as establish the associated catenary, including auto-transformers.
Alstom will take up delivery of 62 air-insulated bays, two power transformers, eight auto-transformers and other equipment under the contracts.