diff options
Diffstat (limited to 'Working_Examples/83/CH1/EX1.1')
-rwxr-xr-x | Working_Examples/83/CH1/EX1.1/example_1_1.sce | 49 | ||||
-rwxr-xr-x | Working_Examples/83/CH1/EX1.1/result_example_1_1.txt | 26 |
2 files changed, 75 insertions, 0 deletions
diff --git a/Working_Examples/83/CH1/EX1.1/example_1_1.sce b/Working_Examples/83/CH1/EX1.1/example_1_1.sce new file mode 100755 index 0000000..c0c3072 --- /dev/null +++ b/Working_Examples/83/CH1/EX1.1/example_1_1.sce @@ -0,0 +1,49 @@ +//Chapter 1 +//Example 1.1 +//page 5 +clear;clc; +fl=760e3; +pf=0.8; +lsg=0.05; +csg=60; +depre=0.12; +hpw=48; +lv=32; +hv=30; +pkwhr=0.10; + +md=fl/pf; +printf('Maximum Demand= %.1f kVA \n\n',md/1000); + +//calculation for tariff (b) + +printf('Loss in switchgear=%.2f %% \n\n',lsg*100); +input_demand=md/(1-lsg); +input_demand=input_demand/1000; +cost_sw_ge=input_demand*60; +depreciation=depre*cost_sw_ge; +fixed_charges=hv*input_demand; +running_cost=input_demand*pf*hpw*52*pkwhr;//52 weeks per year +total_b=depreciation + fixed_charges + running_cost; +printf('Input Demand= %.1f kVA \n\n',input_demand); +printf('Cost of switchgear=Rs %d\n\n',cost_sw_ge); +printf('Annual charges on depreciation=Rs %d \n\n',depreciation); +printf('Annual fixed charges due to maximum demand corresponding to triff(b)=Rs %d \n\n',fixed_charges); +printf('Annual running cost due to kWh consumed=Rs %d \n\n',running_cost); +printf('Total charges/annum for tariff(b) = Rs %d\n\n',total_b) + +//calculation for tariff (a) +input_demand=md; +input_demand=input_demand/1000; +fixed_charges=lv*input_demand; +running_cost=input_demand*pf*hpw*52*pkwhr; +total_a=fixed_charges + running_cost; +printf('maximum demand corresponding to tariff(a) = %.f kVA \n\n',input_demand); +printf('Annual fixed charges=Rs %d \n\n',fixed_charges); +printf('Annual running charges for kWh consumed = Rs %d \n\n',running_cost); +printf('Total charges/annum for tariff(a) = Rs %d \n\n',total_a); +if(total_a > total_b) + printf('Therefore, tariff(b) is economical\n\n\n'); +else + printf('Therefore, tariff(a) is economical\n\n\n'); +
\ No newline at end of file diff --git a/Working_Examples/83/CH1/EX1.1/result_example_1_1.txt b/Working_Examples/83/CH1/EX1.1/result_example_1_1.txt new file mode 100755 index 0000000..ba5c666 --- /dev/null +++ b/Working_Examples/83/CH1/EX1.1/result_example_1_1.txt @@ -0,0 +1,26 @@ + +Maximum Demand= 950.0 kVA + +Loss in switchgear=5.00 % + +Input Demand= 1000.0 kVA + +Cost of switchgear=Rs 60000 + +Annual charges on depreciation=Rs 7200 + +Annual fixed charges due to maximum demand corresponding to triff(b)=Rs 30000 + +Annual running cost due to kWh consumed=Rs 199680 + +Total charges/annum for tariff(b) = Rs 236880 + +maximum demand corresponding to tariff(a) = 950 kVA + +Annual fixed charges=Rs 30400 + +Annual running charges for kWh consumed = Rs 189696 + +Total charges/annum for tariff(a) = Rs 220096 + +Therefore, tariff(a) is economical |