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If the primary/secondary resistance rate is 1/16; What is the winding turns ratio ?

Power Systems Electric Power Electrical Engineering Electrical Maintenance
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Question added by Hussam Adnan, CPMgr , Maintenance Manager , Teeba Investment for Developed Food Processing Co.
Date Posted: 2014/03/19
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Hussam Adnan, CPMgr
by Hussam Adnan, CPMgr , Maintenance Manager , Teeba Investment for Developed Food Processing Co.

Well it is known that:

Vp/Vs = Np/Ns

Is/Ip = Np/Ns

 

Then Vp/Vs * Is/Ip = (Np/Ns) * (Np/Ns) = (Np/Ns)^2

(Vp*Is)/(Vs*Ip) = (Np/Ns)^2

Vp/Ip * Is/Vs = (Np/Ns)^2

Rp *1/Rs = (Np/Ns)^2

Rp/Rs = (Np/Ns)^2

1/16 = (Np/Ns)^2

Np/Ns =1/4 

 

 

tripti pathak
by tripti pathak , VOCATIONAL TRAINEE , PANKI THERMAL POWER STATION

from the formula for turns ratio of transformer R1/R2= (T1/T2)2 

therefore turns ratio will be1/256.

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