Transformer 3

A 200/115 V transformer has an LV (Low voltage) side resistance of 0.06 Ohm. What is the resistance referred to HV side (high voltage)?

Correct answer:

R1 =  0.1815 Ω

Step-by-step explanation:

U1=200 V U2=115 V R2=0.06 Ω  P1=P2 I1 U1 = I2 U2 U1/R1 U1 = U2/R2 U2 U12 R2 = U22 R1  R1=R2 U22U12=0.06 11522002=0.1815 Ω

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