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Auto Transformers

Available sizes 50 VA - 150 KVA

We manufacture a range of auto transformers including -
  • Single phase
  • Three phase
  • Step up / step down
 
Compared to an isolation transformer of the same size, an auto transformer can have load ratings many times higher.
 
Therefore the advantage of the auto transformer is physical size and lower cost, compared to a standard isolation transformer.
 
Example.
 
 
Standard transformer (Isolation transformer)
Auto transformer
     
The auto transformer pictured (same physical size as the standard transformer) would have power handling capability 2-3 times that of the standard transformer.
 
 
Important -
 
  • Auto transformers do not provide isolation.
  • Neutral must be common.
  • Auto transformers are not suitable for a voltage difference of more than half - between input and output.
 
Options include -
 
  • Multiple voltage taps
  • High temperature class
  • Enclosure
 
>> Enquires
 
 
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