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| author | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
| commit | 7bc77cb1ed33745c720952c92b3b2747c5cbf2df (patch) | |
| tree | 449d555969bfd7befe906877abab098c6e63a0e8 /3890/CH5 | |
| parent | d1e070fe2d77c8e7f6ba4b0c57b1b42e26349059 (diff) | |
| download | Scilab-TBC-Uploads-master.tar.gz Scilab-TBC-Uploads-master.tar.bz2 Scilab-TBC-Uploads-master.zip | |
Diffstat (limited to '3890/CH5')
| -rw-r--r-- | 3890/CH5/EX5.1/Ex5_1.png | bin | 0 -> 31529 bytes | |||
| -rw-r--r-- | 3890/CH5/EX5.1/Ex5_1.sce | 26 | ||||
| -rw-r--r-- | 3890/CH5/EX5.2/Ex5_2.png | bin | 0 -> 28305 bytes | |||
| -rw-r--r-- | 3890/CH5/EX5.2/Ex5_2.sce | 27 | ||||
| -rw-r--r-- | 3890/CH5/EX5.3/Ex5_3.png | bin | 0 -> 6624 bytes | |||
| -rw-r--r-- | 3890/CH5/EX5.3/Ex5_3.sce | 28 | ||||
| -rw-r--r-- | 3890/CH5/EX5.5/Ex5_5.png | bin | 0 -> 6244 bytes | |||
| -rw-r--r-- | 3890/CH5/EX5.5/Ex5_5.sce | 29 |
8 files changed, 110 insertions, 0 deletions
diff --git a/3890/CH5/EX5.1/Ex5_1.png b/3890/CH5/EX5.1/Ex5_1.png Binary files differnew file mode 100644 index 000000000..093cfc53e --- /dev/null +++ b/3890/CH5/EX5.1/Ex5_1.png diff --git a/3890/CH5/EX5.1/Ex5_1.sce b/3890/CH5/EX5.1/Ex5_1.sce new file mode 100644 index 000000000..f2fc77c29 --- /dev/null +++ b/3890/CH5/EX5.1/Ex5_1.sce @@ -0,0 +1,26 @@ +//Electric machines and power systems by Syed A Nasar
+//Publisher:TataMcgraw Hill
+//Year: 2002 ; Edition - 7
+//Example 5.1
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+Q=2500; //power in KVA
+v=6600; //3phase voltage in v
+pf=-0.8; //power factor
+Xs=10.4; //syncronous reactance in ohm
+ra=0.071; //armature resistance in ohm
+
+
+th=acosd(pf);
+vt=v/(3^(1/2));
+Ia=Q*10^3/((3^(1/2))*v);
+t=cosd(th)-%i*sind(th);
+Iad=Ia*t;
+v1=Iad*Xs;
+v0=vt+%i*v1;
+Reg=(abs(v0)-vt)/vt*100;
+
+printf('The regulation is %f ',Reg)
diff --git a/3890/CH5/EX5.2/Ex5_2.png b/3890/CH5/EX5.2/Ex5_2.png Binary files differnew file mode 100644 index 000000000..374743351 --- /dev/null +++ b/3890/CH5/EX5.2/Ex5_2.png diff --git a/3890/CH5/EX5.2/Ex5_2.sce b/3890/CH5/EX5.2/Ex5_2.sce new file mode 100644 index 000000000..2c41de337 --- /dev/null +++ b/3890/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,27 @@ +//Electric machines and power systems by Syed A Nasar
+//Publisher:TataMcgraw Hill
+//Year: 2002 ; Edition - 7
+//Example 5.2
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+Q=2500; //power in KVA
+v=6600; //3phase voltage in v
+pf=0.8; //power factor
+Xs=10.4; //syncronous reactance in ohm
+ra=0.071; //armature resistance in ohm
+
+th=acosd(pf);
+vt=v/(3^(1/2));
+Ia=Q*10^3/((3^(1/2))*v);
+t=cosd(th)+%i*sind(th);
+Iad=Ia*t;
+v1=Iad*Xs;
+v0=vt+%i*v1;
+Reg=(abs(v0)-vt)/vt*100;
+
+printf('The regulation is %f ',Reg)
+
+
diff --git a/3890/CH5/EX5.3/Ex5_3.png b/3890/CH5/EX5.3/Ex5_3.png Binary files differnew file mode 100644 index 000000000..3a4890813 --- /dev/null +++ b/3890/CH5/EX5.3/Ex5_3.png diff --git a/3890/CH5/EX5.3/Ex5_3.sce b/3890/CH5/EX5.3/Ex5_3.sce new file mode 100644 index 000000000..e80d8332f --- /dev/null +++ b/3890/CH5/EX5.3/Ex5_3.sce @@ -0,0 +1,28 @@ +//Electric machines and power systems by Syed A Nasar
+//Publisher:Tata McGraw Hill
+//Year: 2002 ; Edition - 7
+//Example 5.3
+//Scilab Version : 6.0.0 ; OS : Windows
+
+clc;
+clear;
+
+I=50; //current in A
+pf=0.707; //power factor
+v=220; //voltage in v
+xs=1.27; //synchronous reactance/phase in ohm
+pm=33*10^3; //power developed by the motor in w
+pa=30; //power angle
+phia=30; //phase angle
+
+v1=220/3^(1/2);
+pd=(pm*10^3)/3;
+v0=(pd*xs)/(v1*sin(pa));
+Ia=v1/xs;
+kvar=3^(1/2)*v*Ia*sind(phia)/10^3;
+Il=I-Ia;
+Phi=atan(.122);
+Pfn=cos(Phi);
+
+printf('KVAR is %f\n',kvar)
+printf('power factor of the motor is %f',Pfn)
diff --git a/3890/CH5/EX5.5/Ex5_5.png b/3890/CH5/EX5.5/Ex5_5.png Binary files differnew file mode 100644 index 000000000..ab19649a1 --- /dev/null +++ b/3890/CH5/EX5.5/Ex5_5.png diff --git a/3890/CH5/EX5.5/Ex5_5.sce b/3890/CH5/EX5.5/Ex5_5.sce new file mode 100644 index 000000000..f62171d85 --- /dev/null +++ b/3890/CH5/EX5.5/Ex5_5.sce @@ -0,0 +1,29 @@ +//Electric machines and power systems by Syed A Nasar +//Publisher:TataMcgraw Hill +//Year: 2002 ; Edition - 7 +//Example 5.5 +//Scilab Version : 6.0.0 ; OS : Windows + +clc; +clear; + +Q=20; //power in KVA +v=220; //voltage in v +pf=0.707; //lagging power factor +Ra=0.5; //armature resistance in ohms +xd=4; //d-axis reactance in ohms +xq=2; //q-axis reactance in ohms + +vt=v/3^(1/2); +Ia=Q*10^3/(3^(1/2)*v); +phi=acosd(pf); +td=(Ia*xq*cosd(phi))/(vt+Ia*xq*sind(phi)); +d=atand(td); +Id=Ia*sind(phi+d); +v1=Id*xd; +v0=vt*cosd(d)+Id*xd; +reg=(v0-vt)*100/vt; + +printf('The percentage regulation is %f in percentage',reg) + + |
