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Diffstat (limited to 'Working_Examples/2777/CH5/EX5.2/Ex5_2.sce')
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diff --git a/Working_Examples/2777/CH5/EX5.2/Ex5_2.sce b/Working_Examples/2777/CH5/EX5.2/Ex5_2.sce new file mode 100755 index 0000000..4a53f79 --- /dev/null +++ b/Working_Examples/2777/CH5/EX5.2/Ex5_2.sce @@ -0,0 +1,91 @@ +
+// ELECTRICAL MACHINES
+// R.K.Srivastava
+// First Impression 2011
+// CENGAGE LEARNING INDIA PVT. LTD
+
+// CHAPTER : 5 : INDUCTION MACHINES
+
+// EXAMPLE : 5.2
+
+clear ; clc ; close ; // Clear the work space and console
+
+
+// GIVEN DATA
+// For Case (a)
+
+S_a = 54; // Total number of Slots
+m_a = 3; // Total number of Poles
+p_a = 8; // Total number of Phases
+
+// For Case (b)
+
+S_b = 32; // Total number of Slots
+m_b = 3; // Total number of Poles
+p_b = 4; // Total number of Phases
+
+// For Case (c)
+
+S_c = 30; // Total number of Slots
+m_c = 3; // Total number of Poles
+p_c = 4; // Total number of Phases
+
+
+// CALCULATIONS
+// For Case (a)
+
+spp_a = S_a/(p_a*m_a); // Slot per poles per phase
+l_a = 0 * spp_a; // Phase allociation Series
+m_a = 1 * spp_a; // Phase allociation Series
+n_a = 2 * spp_a; // Phase allociation Series
+o_a = 3 * spp_a; // Phase allociation Series
+p_a = 4 * spp_a; // Phase allociation Series
+d_a = 0; // d_a = l_a (Rounding off)
+e_a = 2; // e_a = m_a (Rounding off)
+f_a = 4; // f_a = n_a (Rounding off)
+g_a = 6; // g_a = o_a (Rounding off)
+h_a = 9; // h_a = p_a (Rounding off)
+R_a = e_a - d_a; // Phase allociation
+Y_a = f_a - e_a; // Phase allociation
+B_a = g_a - f_a; // Phase allociation
+R1_a = h_a - g_a; // Phase allociation
+
+// For Case (b)
+
+spp_b = S_b/(p_b*m_b); // Slot per poles per phase
+l_b = 0 * spp_b; // Phase allociation Series
+m_b = 1 * spp_b; // Phase allociation Series
+n_b = 2 * spp_b; // Phase allociation Series
+o_b = 3 * spp_b; // Phase allociation Series
+d_b = 0; // d_b = l_b (Rounding off)
+e_b = 2; // e_b = m_b (Rounding off)
+f_b = 5; // f_b = n_b (Rounding off)
+g_b = 8; // g_b = o_b (Rounding off)
+R_b = e_b - d_b; // Phase allociation
+Y_b = f_b - e_b; // Phase allociation
+B_b = g_b - f_b; // Phase allociation
+
+// For Case (c)
+
+spp_c = S_c/(p_c*m_c); // Slot per poles per phase
+l_c = 0 * spp_c; // Phase allociation Series
+m_c = 1 * spp_c; // Phase allociation Series
+n_c = 2 * spp_c; // Phase allociation Series
+d_c = 0; // d_b = l_b (Rounding off)
+e_c = 2; // e_b = m_b (Rounding off)
+f_c = 5; // f_b = n_b (Rounding off)
+R_c = e_c - d_c; // Phase allociation
+Y_c = f_c - e_c; // Phase allociation
+
+// DISPLAY RESULTS
+
+disp("EXAMPLE : 5.2 : SOLUTION :-") ;
+printf("\n For Case (a) Slot per poles per phase , spp = %.3f \n ",spp_a);
+printf("\n Phase allociation series is %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f,slots are allocated respectively to R, Y, B, R, Y, B, R, Y, B....... phase in Sequence\n ",R_a,Y_a,B_a,R1_a,R_a,Y_a,B_a,R1_a,R_a);
+printf("\n By seeing Sequence its Slot per pole per phase is an Integer and such, balanced winding may be possible \n");
+printf("\n For Case (b) Slot per poles per phase , spp = %.3f \n ",spp_b);
+printf("\n Phase allociation series is %.f, %.f, %.f \n",R_b,Y_b,B_b);
+printf("\n By seeing Sequence its Slot per pole per phase are not Integer therefore R-phase will have 8 slots whereas Y-phase and B-phase will have 12 slots \n");
+printf("\n For Case (c) Slot per poles per phase , spp = %.1f \n ",spp_c);
+printf("\n Phase allociation series is %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f, %.f slots are allocated respectively to R, Y, B, R, Y, B, R, Y, B, R, Y, B....... phase in Sequence\n ",R_c,Y_c,R_c,Y_c,R_c,Y_c,R_c,Y_c,R_c,Y_c,R_c,Y_c);
+printf("\n By seeing Sequence its Slot per pole per phase is an Integer and such, balanced winding may be possible \n");
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