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| author | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2017-10-10 12:27:19 +0530 |
| commit | 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 (patch) | |
| tree | dbb9e3ddb5fc829e7c5c7e6be99b2c4ba356132c /3745/CH1/EX1.43/Ex1_43.sce | |
| parent | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (diff) | |
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initial commit / add all books
Diffstat (limited to '3745/CH1/EX1.43/Ex1_43.sce')
| -rw-r--r-- | 3745/CH1/EX1.43/Ex1_43.sce | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/3745/CH1/EX1.43/Ex1_43.sce b/3745/CH1/EX1.43/Ex1_43.sce new file mode 100644 index 000000000..131518a4c --- /dev/null +++ b/3745/CH1/EX1.43/Ex1_43.sce @@ -0,0 +1,22 @@ +// Ex 43 Page 387 + +clc;clear;close; +// Given +R2=0.03;//ohm +X2=0.18;//ohm +Ns=100;//rpm +s1=3;//% + + +Nfl=(100-s1);//rpm (full load speed) +N2=Nfl/2;//rpm +s2=(Ns-N2)/Ns*100;//% +V1BYV2=sqrt(s2/s1*(R2**2+(s1/100*X2)**2)/(R2**2+(s2/100*X2)**2));//from torque equation +//let V1=V12BYV1 V2=1 +V1=V1BYV2;//V +V2=1;//V +V12BYV1=(V1-1)/V1*100;// % reduction in the stator (V12=V1-V2) +printf("Percentage reduction in stator voltage = %.f percent",V12BYV1) +fi=atan(s2/100*X2/R2);//radian +pf=cos(fi);//power factor +printf("\n power factor = %.1f",pf) |