diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /833/CH11/EX11.4 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '833/CH11/EX11.4')
| -rwxr-xr-x | 833/CH11/EX11.4/Ex11_4.sce | 30 | ||||
| -rwxr-xr-x | 833/CH11/EX11.4/Ex11_4.txt | 30 | ||||
| -rwxr-xr-x | 833/CH11/EX11.4/Result11_4.txt | 20 |
3 files changed, 80 insertions, 0 deletions
diff --git a/833/CH11/EX11.4/Ex11_4.sce b/833/CH11/EX11.4/Ex11_4.sce new file mode 100755 index 000000000..6144f30ee --- /dev/null +++ b/833/CH11/EX11.4/Ex11_4.sce @@ -0,0 +1,30 @@ +//Caption: Calculate (a)Mechanical power output (b)Torque (c)Maximum Torque (d)Speed at maximum torque (e)Power output when torque is maximum
+//Exa:11.4
+clc;
+clear;
+close;
+p=4//Number of poles
+V=440//Voltage of motor(in volts)
+f=50//Frequency(in hertz)
+n_s=1500//Synchronous speed(r.p.m)
+sp=1440//Speed of motor at load(in r.p.m)
+s=4//Slip at full load(in %)
+t=1.8//Stator to rotor turns ratio
+R_r=0.1//Resistance of rotor per phase(in ohms)
+X_r=0.8//Reactance of rotor per phase at standstill(in ohms)
+r_r=R_r*(t^2)//Rotor resistance referred to stator(in ohms)
+x_r=X_r*(t^2)//Reactance of rotor at stanstill referred to stator(in ohms)
+E=V/(sqrt(3))
+P=((s/100)*(E^2)*r_r)/((r_r^2)+((s/100)^2)*(x_r^2))
+T=(3*P)/(2*(%pi)*(n_s/60))
+P_M=(3*P*sp)/n_s
+disp(P_M,'(a)Mechanical power output(in watt)=')
+disp(T,'(b)Torque(in N-m)=')
+s_m=R_r/X_r
+N=n_s*(1-s_m)
+P_1=((s_m)*(E^2)*(r_r))/((r_r^2)+((s_m^2)*(x_r^2)))
+T_m=(3*P_1)/(2*(%pi)*(n_s/60))
+disp(T_m,'(c)Maximum torque(in N-m)=')
+disp(N,'(d)Speed at maximum torque(in r.p.m)=')
+P_o=(3*P_1*N)/n_s
+disp(P_o,'(e)Output power at maximum torque(in watt)=')
\ No newline at end of file diff --git a/833/CH11/EX11.4/Ex11_4.txt b/833/CH11/EX11.4/Ex11_4.txt new file mode 100755 index 000000000..6144f30ee --- /dev/null +++ b/833/CH11/EX11.4/Ex11_4.txt @@ -0,0 +1,30 @@ +//Caption: Calculate (a)Mechanical power output (b)Torque (c)Maximum Torque (d)Speed at maximum torque (e)Power output when torque is maximum
+//Exa:11.4
+clc;
+clear;
+close;
+p=4//Number of poles
+V=440//Voltage of motor(in volts)
+f=50//Frequency(in hertz)
+n_s=1500//Synchronous speed(r.p.m)
+sp=1440//Speed of motor at load(in r.p.m)
+s=4//Slip at full load(in %)
+t=1.8//Stator to rotor turns ratio
+R_r=0.1//Resistance of rotor per phase(in ohms)
+X_r=0.8//Reactance of rotor per phase at standstill(in ohms)
+r_r=R_r*(t^2)//Rotor resistance referred to stator(in ohms)
+x_r=X_r*(t^2)//Reactance of rotor at stanstill referred to stator(in ohms)
+E=V/(sqrt(3))
+P=((s/100)*(E^2)*r_r)/((r_r^2)+((s/100)^2)*(x_r^2))
+T=(3*P)/(2*(%pi)*(n_s/60))
+P_M=(3*P*sp)/n_s
+disp(P_M,'(a)Mechanical power output(in watt)=')
+disp(T,'(b)Torque(in N-m)=')
+s_m=R_r/X_r
+N=n_s*(1-s_m)
+P_1=((s_m)*(E^2)*(r_r))/((r_r^2)+((s_m^2)*(x_r^2)))
+T_m=(3*P_1)/(2*(%pi)*(n_s/60))
+disp(T_m,'(c)Maximum torque(in N-m)=')
+disp(N,'(d)Speed at maximum torque(in r.p.m)=')
+P_o=(3*P_1*N)/n_s
+disp(P_o,'(e)Output power at maximum torque(in watt)=')
\ No newline at end of file diff --git a/833/CH11/EX11.4/Result11_4.txt b/833/CH11/EX11.4/Result11_4.txt new file mode 100755 index 000000000..468d8bd26 --- /dev/null +++ b/833/CH11/EX11.4/Result11_4.txt @@ -0,0 +1,20 @@ +(a)Mechanical power output(in watt)=
+
+ 20813.847
+
+ (b)Torque(in N-m)=
+
+ 138.02611
+
+ (c)Maximum torque(in N-m)=
+
+ 237.74998
+
+ (d)Speed at maximum torque(in r.p.m)=
+
+ 1312.5
+
+ (e)Output power at maximum torque(in watt)=
+
+ 32677.469
+
\ No newline at end of file |