diff options
Diffstat (limited to '1938/CH6/EX6.21/6_21.sce')
| -rwxr-xr-x | 1938/CH6/EX6.21/6_21.sce | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/1938/CH6/EX6.21/6_21.sce b/1938/CH6/EX6.21/6_21.sce new file mode 100755 index 000000000..a394d2a07 --- /dev/null +++ b/1938/CH6/EX6.21/6_21.sce @@ -0,0 +1,18 @@ +clc,clear
+printf('Example 6.21\n\n')
+
+V_l=480
+X_d=0.1,X_q=0.075,R_a=0 //armature resistance and synchronous reactance of direct,quadrature axis
+I_l=1200
+I_ph=I_l/sqrt(3)
+V_ph=V_l
+V_t=V_l,I_a=I_ph
+phi=acos(0.8)
+psi=atan( (V_t*sin(phi)+I_a*X_q)/(V_t*cos(phi)+I_a*R_a) )
+delta=psi-phi
+
+I_d=I_a*sin(psi)
+I_q=I_a*cos(psi)
+E_f=V_t*cos(delta)+I_d*X_d+I_q*R_a
+
+printf('Excitation e.m.f is %.2f V ',E_f)
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