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Diffstat (limited to '3311/CH6/EX6.14/Ex6_14.sce')
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1 files changed, 23 insertions, 0 deletions
diff --git a/3311/CH6/EX6.14/Ex6_14.sce b/3311/CH6/EX6.14/Ex6_14.sce new file mode 100755 index 000000000..a3b94307b --- /dev/null +++ b/3311/CH6/EX6.14/Ex6_14.sce @@ -0,0 +1,23 @@ +// chapter 6 +// example 6.14 +// Calculate thyristor current ratings +// page-321 +clear; +clc; +// given +E_line=415; // in V (voltage line supply) The value is used in the solution but not mentioned +R_L=10; // in ohm +alpha=30; // in degree (firing angle) +// calculate +Em=E_line*sqrt(2/3); // calculation of peak value of voltage +Edc=(3*sqrt(3)/(2*%pi))*Em*cosd(alpha); // calculation of average load voltage +Idc=Edc/R_L; // calculation of average load current +I_T_rms=Idc/sqrt(3); // calculation of thyristor rms current +I_T_dc=Idc/3; // calculation of thyristor average load current +I_T_peak=Idc; // calculation of thyristor peak current +PIV=E_line*sqrt(2); // calculation of thyristor peak inverse voltage +printf("\nThe average load current \t\t Idc=%.1f A",Idc); +printf("\nThe thyristor average load current is \t I_T_dc=%.1f A",I_T_dc); +printf("\nThe thyristor rms current is \t\t I_T_rms=%.1f A",I_T_rms); +printf("\nThe thyristor peak current is \t\t I_T_peak=%.1f A",I_T_peak); +printf("\nThe thyristor peak inverse voltage is \t PIV=%.1f V",PIV);
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