diff options
Diffstat (limited to '3802/CH14')
| -rw-r--r-- | 3802/CH14/EX14.1/Ex14_1.jpg | bin | 0 -> 18325 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.1/Ex14_1.sce | 30 | ||||
| -rw-r--r-- | 3802/CH14/EX14.2/Ex14_2.jpg | bin | 0 -> 29982 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.2/Ex14_2.sce | 45 | ||||
| -rw-r--r-- | 3802/CH14/EX14.3/Ex14_3.jpg | bin | 0 -> 12345 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.3/Ex14_3.sce | 15 | ||||
| -rw-r--r-- | 3802/CH14/EX14.4/Ex14_4.jpg | bin | 0 -> 11371 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.4/Ex14_4.sce | 20 | ||||
| -rw-r--r-- | 3802/CH14/EX14.5/Ex14_5.jpg | bin | 0 -> 11165 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.5/Ex14_5.sce | 21 | ||||
| -rw-r--r-- | 3802/CH14/EX14.6/Ex14_6.jpg | bin | 0 -> 13761 bytes | |||
| -rw-r--r-- | 3802/CH14/EX14.6/Ex14_6.sce | 22 |
12 files changed, 153 insertions, 0 deletions
diff --git a/3802/CH14/EX14.1/Ex14_1.jpg b/3802/CH14/EX14.1/Ex14_1.jpg Binary files differnew file mode 100644 index 000000000..1dcc5cb85 --- /dev/null +++ b/3802/CH14/EX14.1/Ex14_1.jpg diff --git a/3802/CH14/EX14.1/Ex14_1.sce b/3802/CH14/EX14.1/Ex14_1.sce new file mode 100644 index 000000000..2c0fcf8d3 --- /dev/null +++ b/3802/CH14/EX14.1/Ex14_1.sce @@ -0,0 +1,30 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_1.sce.
+
+clc;
+clear;
+maximum_demand=1.5e3;
+total_lamps=10;
+lamps_on=7;
+lamp_ontime=5;
+lamp_power=100;
+heater_on=2;
+heater_ontime=3;
+heater_power=1e3;
+printf("\n (a)")
+actual_energy_consumed=(lamps_on*lamp_power*lamp_ontime)+(heater_on*heater_power*heater_ontime);
+time_duration=24;
+average_load=(actual_energy_consumed)/(time_duration);
+printf("\n Average load=%3.2f W \n",average_load)
+
+printf("\n (b)")
+monthly_energy_consump=actual_energy_consumed*30*1e-3;
+printf("\n Monthly energy consumption=%3.0f kW \n",monthly_energy_consump)
+
+printf("\n (c)")
+load_factor=average_load/maximum_demand;
+printf("\n Load factor=%1.3f \n",load_factor)
diff --git a/3802/CH14/EX14.2/Ex14_2.jpg b/3802/CH14/EX14.2/Ex14_2.jpg Binary files differnew file mode 100644 index 000000000..4e176a2f7 --- /dev/null +++ b/3802/CH14/EX14.2/Ex14_2.jpg diff --git a/3802/CH14/EX14.2/Ex14_2.sce b/3802/CH14/EX14.2/Ex14_2.sce new file mode 100644 index 000000000..9e0d2c2ae --- /dev/null +++ b/3802/CH14/EX14.2/Ex14_2.sce @@ -0,0 +1,45 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_2.sce.
+
+clc;
+clear;
+//Loads are in kilowatt
+avg_load1=1;
+avg_load2=0.3;
+avg_load3=0.5;
+avg_load4=2.5;
+max_load1=5;
+max_load2=2;
+max_load3=2;
+max_load4=10;
+max_demand1=5;
+max_demand2=1.6;
+max_demand3=1;
+max_demand4=5;
+
+printf("\n (a)")
+sumof_individualmax_dem=max_load1+max_load2+max_load3+max_load4;
+max_demandof_wholegroup=max_demand1+max_demand2+max_demand3+max_demand4;
+diversity_factor=sumof_individualmax_dem/max_demandof_wholegroup;
+printf("\n Diversity factor=%1.4f \n",diversity_factor)
+
+
+printf("\n (b)")
+LF_of_consumer1=avg_load1/max_load1;
+printf("\n Load factor of consumer1 =%1.2f \n",LF_of_consumer1)
+LF_of_consumer2=avg_load2/max_load2;
+printf("\n Load factor of consumer2 =%1.2f \n",LF_of_consumer2)
+LF_of_consumer3=avg_load3/max_load3;
+printf("\n Load factor of consumer3 =%1.2f \n",LF_of_consumer3)
+LF_of_consumer4=avg_load4/max_load4;
+printf("\n Load factor of consumer4 =%1.2f \n",LF_of_consumer4)
+
+printf("\n (c)")
+combined_avg_load=(avg_load1+avg_load2+avg_load3+avg_load4);
+printf("\n Combined average load =%1.1f kW \n",combined_avg_load)
+combined_load_factor=combined_avg_load/max_demandof_wholegroup;
+printf("\n Combined load factor =%1.3f \n",combined_load_factor)
diff --git a/3802/CH14/EX14.3/Ex14_3.jpg b/3802/CH14/EX14.3/Ex14_3.jpg Binary files differnew file mode 100644 index 000000000..118aad48b --- /dev/null +++ b/3802/CH14/EX14.3/Ex14_3.jpg diff --git a/3802/CH14/EX14.3/Ex14_3.sce b/3802/CH14/EX14.3/Ex14_3.sce new file mode 100644 index 000000000..d45fe5be4 --- /dev/null +++ b/3802/CH14/EX14.3/Ex14_3.sce @@ -0,0 +1,15 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_3.sce.
+
+clc;
+clear;
+average_demand=33.75; //in kilowatt
+time_duration=24*365; // in hours
+tariff=1.25; //in rupees per kilowatthour
+annualenergy_consumption=average_demand*time_duration;
+C=annualenergy_consumption*tariff;
+printf(" \n Annual bill of the consumer=%6.1f rupees \n",C)
diff --git a/3802/CH14/EX14.4/Ex14_4.jpg b/3802/CH14/EX14.4/Ex14_4.jpg Binary files differnew file mode 100644 index 000000000..c9da85508 --- /dev/null +++ b/3802/CH14/EX14.4/Ex14_4.jpg diff --git a/3802/CH14/EX14.4/Ex14_4.sce b/3802/CH14/EX14.4/Ex14_4.sce new file mode 100644 index 000000000..564dfa4e4 --- /dev/null +++ b/3802/CH14/EX14.4/Ex14_4.sce @@ -0,0 +1,20 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_4.sce.
+
+clc;
+clear;
+max_demand=75; //in kilowatt
+time_duration=24*365; //in hour
+load_factor=0.45;
+tariff1=650;
+tariff2=1.30;
+annual_energy_consump=max_demand*time_duration*load_factor;
+Ce=tariff2*annual_energy_consump;
+Cf=tariff1*max_demand;
+total_annualcharge=Ce+Cf;
+overall_costperkwhr=total_annualcharge/annual_energy_consump;
+printf(" \n Overall cost per kWh= %1.2f rupees \n",overall_costperkwhr)
diff --git a/3802/CH14/EX14.5/Ex14_5.jpg b/3802/CH14/EX14.5/Ex14_5.jpg Binary files differnew file mode 100644 index 000000000..422fa7070 --- /dev/null +++ b/3802/CH14/EX14.5/Ex14_5.jpg diff --git a/3802/CH14/EX14.5/Ex14_5.sce b/3802/CH14/EX14.5/Ex14_5.sce new file mode 100644 index 000000000..32fed9c57 --- /dev/null +++ b/3802/CH14/EX14.5/Ex14_5.sce @@ -0,0 +1,21 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_5.sce
+
+clc;
+clear;
+tariff1=3.50; //tariff in rupees per kilowatthour for first 500kilowatthour
+tariff2=3.00; //tariff in rupees per kilowatthour for next 500kilowatthour
+tariff3=2.50; //tariff in rupees per kilowatthour for usage exceeding 1000kilowatthour
+days_in_a_month=31;
+time_duration=24*days_in_a_month;
+average_demand=2.5; //in kilowatt
+monthly_consumption=time_duration*average_demand;
+a1=500; //kWh for tariff1
+a2=500; //kWh for tariff2
+a3=monthly_consumption-a1-a2; //kWh for tariff3
+monthly_charge=(a1*tariff1)+(a2*tariff2)+(a3*tariff3);
+printf("\n Monthly Charge=%d rupees.",monthly_charge)
diff --git a/3802/CH14/EX14.6/Ex14_6.jpg b/3802/CH14/EX14.6/Ex14_6.jpg Binary files differnew file mode 100644 index 000000000..73fc90bb0 --- /dev/null +++ b/3802/CH14/EX14.6/Ex14_6.jpg diff --git a/3802/CH14/EX14.6/Ex14_6.sce b/3802/CH14/EX14.6/Ex14_6.sce new file mode 100644 index 000000000..bc21c1c1c --- /dev/null +++ b/3802/CH14/EX14.6/Ex14_6.sce @@ -0,0 +1,22 @@ +//Book Name:Fundamentals of Electrical Engineering
+//Author:Rajendra Prasad
+//Publisher: PHI Learning Private Limited
+//Edition:Third ,2014
+
+//Ex14_6.sce.
+
+clc;
+clear;
+average_demand=450;
+load_factor=0.65;
+power_factor=0.8;
+tariff1=75; //in ruees per month per kVA
+tariff2=1.30; //in rupees per kilowatthour
+working_time=8*300;
+maximum_kw_demand=average_demand/load_factor;
+maximum_kVA_demand=maximum_kw_demand/power_factor;
+annual_energy_charge=tariff2*average_demand*working_time;
+annual_max_demand_charge=tariff1*12*maximum_kVA_demand;
+annual_charge=annual_energy_charge+annual_max_demand_charge;
+disp(annual_charge,'Annual bill of the consumer in rupees')
+//The answer vary dueto roundoff error.
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