Question

a single phase transfomer has 350 primary and 1050 secondary turns.the primary is connected to 400 v,50 Hz supply.if the net cross section area of core is 50 cm2 .find the maximum value of density in core​

Answer 1

Answer:



Explanation:

Given:

Primary turns, n1 = 400

Secondary turns, n2 =1000

Cross sectional area of the core = 60 sq.cm.

Frequency, f = 50 Hz

Voltage applied, V = 500 V

(i) Peak value of flux density at core,  

where N is the no. of turns on the side voltage is applied

and f is in MHz.

Substituting the given values in the formula, we have

(ii) The voltage induced in secondary side is determined by turns ratio and primary voltage.

We have the relationship,

Now, Voltage on secondary side = (N2/N1) * Primary voltage

                                                      =(1000/400) * 500

                                                       = 1250 V

Therefore, the voltage induced in the secondary side of the transformer is 1250 volts.