7/25/2019 TRANSFORMADORES.txt

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V1*N2=V2*N1(V1/V2)=(I2/I1)=(N1/N2)=a

(V1/I1)=a^2*(V2/I2)Z1=a^2*Z2

Prueba Vacio(Baja tension)Pnfe=(V1N^2)*g1=V1N*I0*cos(theta)Y=g1-jb1b1=sqrt(Y1^2-g1^2)y1=I0/V1NV1N=kV-DATO

Prueba de corto(Alta tension)Pncu=V1cc*I1N*cos(theta)=I1N^2*Req1Xeq1=sqrt(Zeq1^2-Req1^2)

Zeq1=V1cc/I1N

CEARATReq1=R1+a(R2^29Xeq1=Xd1+a^2*Xd2

CEARBT

Req2=R1/(a^2)+R2Xeq2=Xd1/(a^2)+Xd2

Pl=V2*I2*COS(thetal)r%=V02-V2N/(v2n)*100V02=V1/aI2N=KVA/Vdato

r%max=Zeq2*I2n/(V2N)*100V1/a=(Req2+jXeq2)I2n+V2n

I2=alpha*I2n

S2=alpha*S1nalphamax=sqrt(Pnfe/Pncu)alpha=1 plena carga

Pcu= (alpha*I2n)^2*Req2Pcu=alpha^2*Pncu

n=Sn*alpha*cos(thetal)/(Sn*cos(thetal)*alpha+Pnfe+alpha^2*Pncu)