Solve for and in Fig. 13.27 (the same circuit as for Practice Prob. 13.1) using the T-equivalent circuit for the linear transformer.
T-equivalent need ;La,Lb,Lc
La=L1−M
Lb=L2−M
Lc=M
So, coz current loop M become -M
La=L1−(−M)=j9
Lb=L2−(−M)=j6
Lc=−M=−j
-M can be represented by capacitor *)
KVL,
I1(4+j9−j)+I2(−j)=60∠90∘
I1(4+j8)+(−j)I2=60j
I1(−j)+I2(10+j6−j)=0
I1(−j)+I2(10+j5)=0
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