Expression for saving of copper in auto transformer
Answers
Working of Auto transformer, Saving in Copper Material and Applications
It consists of only single winding which is common to both primary and secondary winding.
It has two end terminals ( PR) acts as primary and one end terminal ( either P or R ) and inter mediate terminal Q acts as a secondary winding ( Figure A ).
The position of the intermediate terminal Q determines whether auto – transformer works as step down transformer or step up transformer.
The theory and operation of the auto-transformer is similar to that of conventional two winding transformer.
The auto transformer is cheaper than the ordinary transformer because of single winding uses less copper than the two winding. Since the voltage / turn is equal in both winding, the voltage develops across each winding depends on number of turns.
auto-transformer.png
Answer:
Explanation:
Working of Auto transformer, Saving in Copper Material and Applications. It consists of only single winding which is common to both primary and secondary winding. It has two end terminals ( PR) acts as primary and one end terminal ( either P or R ) and inter mediate terminal Q acts as a secondary winding ( Figure A )