diff options
Diffstat (limited to '269/CH14/EX14.4/example6_4.sce')
| -rw-r--r-- | 269/CH14/EX14.4/example6_4.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/269/CH14/EX14.4/example6_4.sce b/269/CH14/EX14.4/example6_4.sce new file mode 100644 index 000000000..9a227c6a5 --- /dev/null +++ b/269/CH14/EX14.4/example6_4.sce @@ -0,0 +1,17 @@ +disp('chapter 14, example 4')
+disp('given')
+disp('Pav=500W, Q=500vars,Pf=0.707 lagging')//power factor=0.707 lag behind Q
+disp('rms value of voltage=2v')
+disp('angular frequency=2rad/sec')
+Q=500
+pf=0.707
+pav=500
+Qt=sqrt((pav/0.9)^2-pav^2)//power factor=pav/sqrt(pav^2+qt^2) and changed power factor = 0.9 lagging .This is done by connecting capacitor
+disp(Qt)
+Qc=Qt-Q
+disp(Qc)
+Vrms=2//rms value of voltage is 2 volts
+W=2//angularfreq=2 rad/sec
+c=Qc/(-Vrms^2*W)*10^-6
+disp('Capacitor required for 0.9 power factor in microfarad is')
+disp(c)
\ No newline at end of file |