diff options
Diffstat (limited to '3574/CH1')
| -rw-r--r-- | 3574/CH1/EX1.2/EX1_2.png | bin | 0 -> 117668 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.2/EX1_2.sce | 33 | ||||
| -rw-r--r-- | 3574/CH1/EX1.3/EX1_3.sce | 26 | ||||
| -rw-r--r-- | 3574/CH1/EX1.3/Ex1_3.png | bin | 0 -> 117443 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.4/EX1_4.png | bin | 0 -> 122874 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.4/EX1_4.sce | 25 | ||||
| -rw-r--r-- | 3574/CH1/EX1.5/EX1_5.png | bin | 0 -> 119299 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.5/EX1_5.sce | 18 | ||||
| -rw-r--r-- | 3574/CH1/EX1.6/EX1_6.png | bin | 0 -> 98093 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.6/EX1_6.sce | 26 | ||||
| -rw-r--r-- | 3574/CH1/EX1.7/EX1_7.png | bin | 0 -> 97958 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.7/EX1_7.sce | 24 | ||||
| -rw-r--r-- | 3574/CH1/EX1.8/EX1_8.png | bin | 0 -> 131979 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.8/EX1_8.sce | 26 | ||||
| -rw-r--r-- | 3574/CH1/EX1.9/EX1_9.png | bin | 0 -> 130442 bytes | |||
| -rw-r--r-- | 3574/CH1/EX1.9/EX1_9.sce | 25 |
16 files changed, 203 insertions, 0 deletions
diff --git a/3574/CH1/EX1.2/EX1_2.png b/3574/CH1/EX1.2/EX1_2.png Binary files differnew file mode 100644 index 000000000..13b4685b2 --- /dev/null +++ b/3574/CH1/EX1.2/EX1_2.png diff --git a/3574/CH1/EX1.2/EX1_2.sce b/3574/CH1/EX1.2/EX1_2.sce new file mode 100644 index 000000000..fb69bd981 --- /dev/null +++ b/3574/CH1/EX1.2/EX1_2.sce @@ -0,0 +1,33 @@ +// Example 1.2
+// Computation of (a) Current in the coil (b) Magnetic potential difference across R3
+// (c) Flux in R2
+//Page No. 13
+
+clc;
+clear all;
+close;
+
+// Given data
+phi=0.250; // Flux in Wb
+R1=10500; // First magnetic circuit parameter
+R2=40000; // Second magnetic circuit parameter
+R3=30000; // Third magnetic circuit parameter
+N=140; // Number of turns of copper wire
+
+// (a) Current in the coil
+RParr=(R2*R3)/(R2+R3); // Parallel resistance
+Rckt=R1+RParr; // Circuit resistance
+I=(phi*Rckt)/N;
+
+// (b) Magnetic potential difference across R3
+F1=phi*R1; // Magnetic drop across R1
+F3=(I*N)-F1; // Flux across R3
+
+//(c) flux in R2
+phi2=F3/R2;
+
+
+//Display result on command window
+printf("\n Current in the coil = %0.2f A ",I);
+printf("\n Magnetic potential difference across R3 = %0.2f A-t ",F3);
+printf("\n Flux in R2 (Wb) = %0.4f Wb ",phi2);
diff --git a/3574/CH1/EX1.3/EX1_3.sce b/3574/CH1/EX1.3/EX1_3.sce new file mode 100644 index 000000000..58d6f81ac --- /dev/null +++ b/3574/CH1/EX1.3/EX1_3.sce @@ -0,0 +1,26 @@ +// Example 1.3
+// Computation of hysteresis loss if the apparatus is connected to a 60 Hz source
+//Page No. 16
+
+clc;
+clear all;
+close;
+
+// Given data
+V=240; // Rated voltage
+F1=25; // Rated frequency
+Ph2=846; // hysteresis loss
+F2=60; // Source Frequency
+Bmax1=0.62 // Flux density is 62 percent of its rated value 1
+Bmax2=1.0 // Flux density is 62 percent of its rated value 2
+Sc=1.4 // Steinmetz exponents
+
+// hysteresis loss if the apparatus is connected to a 60 Hz source
+Ph1=Ph2*[(F2/F1)*(Bmax1/Bmax2)^Sc];
+Ph1=Ph1/1000;
+
+//Display result on command window
+printf("\n Hysteresis loss if the apparatus is connected to a 60 Hz source = %0.2f kW",Ph1);
+
+
+
diff --git a/3574/CH1/EX1.3/Ex1_3.png b/3574/CH1/EX1.3/Ex1_3.png Binary files differnew file mode 100644 index 000000000..7a218355d --- /dev/null +++ b/3574/CH1/EX1.3/Ex1_3.png diff --git a/3574/CH1/EX1.4/EX1_4.png b/3574/CH1/EX1.4/EX1_4.png Binary files differnew file mode 100644 index 000000000..4378f4a94 --- /dev/null +++ b/3574/CH1/EX1.4/EX1_4.png diff --git a/3574/CH1/EX1.4/EX1_4.sce b/3574/CH1/EX1.4/EX1_4.sce new file mode 100644 index 000000000..2961d9002 --- /dev/null +++ b/3574/CH1/EX1.4/EX1_4.sce @@ -0,0 +1,25 @@ +// Example 1.4
+// Computation of magnitude of the developed torque
+// Page No. 21
+
+clc;
+clear all;
+close;
+
+// Given data
+Ebat=36; // Battery voltage
+R=4; // Combined resistance of the coil
+B=0.23; // Flux density
+L=0.3; // Length of the coil
+d=0.60; // Distance between centre of each conductor and centre
+// of each shaft
+beta_skew=15 // Skew angle
+
+// Magnitude of the developed torque
+alpha=90-beta_skew;
+I=Ebat/R;
+T=2*B*I*(L*sind(alpha))*d; // Magnitude of the developed torque
+
+//Display result on command window
+printf("\n Magnitude of the developed torque = %0.2f N.m ",T);
+
diff --git a/3574/CH1/EX1.5/EX1_5.png b/3574/CH1/EX1.5/EX1_5.png Binary files differnew file mode 100644 index 000000000..beb337a28 --- /dev/null +++ b/3574/CH1/EX1.5/EX1_5.png diff --git a/3574/CH1/EX1.5/EX1_5.sce b/3574/CH1/EX1.5/EX1_5.sce new file mode 100644 index 000000000..763d820d2 --- /dev/null +++ b/3574/CH1/EX1.5/EX1_5.sce @@ -0,0 +1,18 @@ +// Example 1.5
+// Computation of length of conductor
+// Page No. 25
+
+clc;
+clear all;
+close;
+
+// Given data
+e=2.5; // Voltage generated
+B=1.2; // Magnetic field
+v=8.0; // Speed
+
+// Length of conductor (e=B*l*v)
+l=e/(B*v);
+
+//Display result on command window
+printf("\n Length of conductor = %0.2f m ",l);
diff --git a/3574/CH1/EX1.6/EX1_6.png b/3574/CH1/EX1.6/EX1_6.png Binary files differnew file mode 100644 index 000000000..57faa9618 --- /dev/null +++ b/3574/CH1/EX1.6/EX1_6.png diff --git a/3574/CH1/EX1.6/EX1_6.sce b/3574/CH1/EX1.6/EX1_6.sce new file mode 100644 index 000000000..b0c1747c4 --- /dev/null +++ b/3574/CH1/EX1.6/EX1_6.sce @@ -0,0 +1,26 @@ +// Example 1.6
+// Computation of (a) Frequency (b) Pole flux
+// Page No. 27
+
+clc;
+clear;
+close;
+
+// Given data
+w=36; // Angular frequency
+E=24.2; // Voltage
+pi=3.14;
+N=6; // Number of turns of rotor
+
+// (a) frequency
+f=w/(2*pi); // Relation between angular frequency and frequency
+
+// (b) pole flux
+Erms=E/sqrt(2);
+phimax = Erms/(4.44*f*N); // Relation to find pole flux
+
+
+//Display result on command window
+printf("\n Frequency = %0.4f Hz ",f);
+printf("\n Pole flux = %0.2f Wb ",phimax);
+
diff --git a/3574/CH1/EX1.7/EX1_7.png b/3574/CH1/EX1.7/EX1_7.png Binary files differnew file mode 100644 index 000000000..0db432da3 --- /dev/null +++ b/3574/CH1/EX1.7/EX1_7.png diff --git a/3574/CH1/EX1.7/EX1_7.sce b/3574/CH1/EX1.7/EX1_7.sce new file mode 100644 index 000000000..8f6810843 --- /dev/null +++ b/3574/CH1/EX1.7/EX1_7.sce @@ -0,0 +1,24 @@ +// Example 1.7
+// Computation of eddy current loss if the apparatus is connected to a 60 Hz
+//source
+// Page No. 29
+
+clc;
+clear;
+close;
+
+// Given data
+V=240; // Rated voltage
+F1=25; // Rated frequency
+Pe1=642; // Eddy current loss
+F2=60; // Source Frequency
+Bmax1=1.0 // Flux density is 62 percent of its rated value
+Bmax2=0.62 // Flux density is 62 percent of its rated value
+
+// Eddy current loss if the apparatus is connected to a 60 Hz source
+Pe2=Pe1*[(F2/F1)^2*(Bmax2/Bmax1)^2];
+Pe2=Pe2/1000;
+
+// Display result on command window
+printf("\n Eddy current loss if the apparatus is connected to a 60 Hz source = %0.2f kW ",Pe2);
+
diff --git a/3574/CH1/EX1.8/EX1_8.png b/3574/CH1/EX1.8/EX1_8.png Binary files differnew file mode 100644 index 000000000..7e66316c3 --- /dev/null +++ b/3574/CH1/EX1.8/EX1_8.png diff --git a/3574/CH1/EX1.8/EX1_8.sce b/3574/CH1/EX1.8/EX1_8.sce new file mode 100644 index 000000000..dff0305b4 --- /dev/null +++ b/3574/CH1/EX1.8/EX1_8.sce @@ -0,0 +1,26 @@ +// Example 1.8
+// Computation of (a) Number of cycles per revolution (b) Number of electrical
+// degrees per revolution (c) Frequency in hertz
+// Page No. 31
+
+clc;
+clear all;
+close;
+
+// Given data
+P=80; // Number of poles
+rpers=20; // Revolutions per second
+
+// (a) Number of cycles per revolution
+n=P/2;
+
+// (b) Number of electrical degrees per revolution
+Elecdeg=360*P/2;
+
+// (c) Frequency in hertz
+f=P*rpers/2;
+
+//Display result on command window
+printf("\n Number of cycles per revolution = %0.0f cycles ",n);
+printf("\n Number of electrical degrees per revolution = %0.0f ",Elecdeg);
+printf("\n Frequency in hertz = %0.0f Hz ",f);
diff --git a/3574/CH1/EX1.9/EX1_9.png b/3574/CH1/EX1.9/EX1_9.png Binary files differnew file mode 100644 index 000000000..88bebef66 --- /dev/null +++ b/3574/CH1/EX1.9/EX1_9.png diff --git a/3574/CH1/EX1.9/EX1_9.sce b/3574/CH1/EX1.9/EX1_9.sce new file mode 100644 index 000000000..dc3a99e76 --- /dev/null +++ b/3574/CH1/EX1.9/EX1_9.sce @@ -0,0 +1,25 @@ +// Example 1.9
+// Computation of (a) Frequency of the generated emf (b) Speed of the rotor
+//Page No. 31
+
+clc;
+clear all;
+close;
+
+// Given data
+Erms=100; // Voltage generated in armature coil
+N=15; // Number of turns in armature coil
+phimax=0.012; // Flux per pole
+P=4; // Number of poles
+
+// (a) frequency of the generated emf
+f=Erms/(4.44*N*phimax);
+
+// (b) speed of the rotor
+n=2*f/P;
+nmin=n*60;
+
+//Display result on command window
+printf("\n Frequency of the generated emf = %0.0f Hz ",f);
+printf("\n Speed of the rotor = %0.2f r/s",n);
+printf("\n Speed of the rotor = %0.0f r/min",nmin);
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