Physics
Name the transformer used in the (i) power generating station, (ii) power sub station. State the function of each transformer.
Electro-Magnetism
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Answer
The transformer used in the —
(i) Power generating station — Step up transformer is used in Power generating station to increase the alternating voltage from 11 kV to 132 kV.
(ii) Power sub station — Step down transformer is used in Power sub station to decrease the alternating voltage from 132 kV to 33 kV and then further to 11 kV and to 220 V.
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