diff options
Diffstat (limited to '3835/CH4/EX4.18')
| -rw-r--r-- | 3835/CH4/EX4.18/Ex4_18.sce | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/3835/CH4/EX4.18/Ex4_18.sce b/3835/CH4/EX4.18/Ex4_18.sce new file mode 100644 index 000000000..125f4ace1 --- /dev/null +++ b/3835/CH4/EX4.18/Ex4_18.sce @@ -0,0 +1,28 @@ +clear +// +c=50*10**-6 +i=2.355 +//case a +vl=120 +vr=70 +vac=150 +//the phasor sum of vr and vl is OCthe applied voltage v is the phasor sum of vc and OC and is represented by OV +//the theta be the impedance angle of RL combination +//from right angled triangle OCD,theta can be determined as follows: +//(vr+vl*costheta)**2+(vl*costheta)**2=vac**2 +//substitute the values then value of costheta can be found +zl=vl/i //impedance of the coil +p=0.981 //value of sin(79) +xl=zl*p +q=0.19 //value of cos(79) +r=zl*q +dc=i*xl +bd=i*r +//from right angled triangle ODB in fig. +v=98.3 +xc=vac/i +printf("\n capacitive reactance= %0.1f ohm",xc) +f=1/(xc*2*3.14*c) +printf("\n f= %0.1f cycles/sec",f) +ploss=i**2*r +printf("\n power loss in iron cored choke is= %0.1f w",ploss) |