"At our core, Niagara Transformer has the best people, taking on the toughest engineering challenges with the highest quality and the shortest lead times." - John F. Darby, President

 

Auto-Transformers

(Liquid-Immersed & Dry Type)

 

 An Auto-Transformer has one single winding as a primary winding and as a secondary winding. This is different from an ordinary transformer which has separate windings for their primary and secondary.  An Auto-Transformer is a device that is traditionally used in an electrical system to add to the output of that system.  Because this transformer does twice the work with one winding, they tend to be smaller, cheaper and lighter than most.  

Auto-Transformers are used to connect systems operating at different voltages.  Niagara Transformer offers liquid-immersed and dry type variations of this transformer.  A dry type is one that does not need any type of liquid as a cooling agent for the coils and electric core.  A liquid-immersed transformer has a liquid, usually oil but not always, to act as a self-healing insulation from the heat that gets built up within the core of the auto-transformer and dissipated out to the fins.  

 

v      Up to 50-MVAr and 10,000-Amperes

v      Up to 5-MVAr DC

v      Up to 138 kV

v      Up to 650 kV BIL

v      Copper or Aluminum

v      Disc or Layer

v      Single or 3 phase

v     Vacuum or Resistive Switches

 

 

 

Liquid-Filled
Dry-Type
Cast-Coil
Grounding
Reactor
Voltage Regulator
DeltaWye
DeltaWye
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Niagara Transformer
Niagara Transformer
Niagara Transformer