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  • A power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?

Q7.23     A power transmission line feeds input power at 2300 Vto a stepdown transformer with its primary windings having 40000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?

Answers (1)

best_answer

Given,

Input voltage:

 V_{input}=2300V

Number of turns in the primary coil

N_{primary}= 4000

Output voltage:

V_{output}=230V

Now,

Let number of turns in secondary be

  N=N_{secondary}

Now as we know, in a transformer,

\frac{V_{primary}}{V_{secondary}}=\frac{N_{primary}}{N_{secondary}}

{N_{secondary}} =\frac{V_{secondary}}{V_{primary}}*N_{primary}=\frac{230}{2300}*4000=400

Hence the number of turns in secondary winding id 400.

 

 

Posted by

Pankaj Sanodiya

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