diff options
Diffstat (limited to '3835/CH5/EX5.7/Ex5_7.sce')
| -rw-r--r-- | 3835/CH5/EX5.7/Ex5_7.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/3835/CH5/EX5.7/Ex5_7.sce b/3835/CH5/EX5.7/Ex5_7.sce new file mode 100644 index 000000000..2dac6de5e --- /dev/null +++ b/3835/CH5/EX5.7/Ex5_7.sce @@ -0,0 +1,29 @@ +clear +// +//given +//25kW at power factor 1 for branch AB +//40KVA at power factor 0.85 for branch BC +//30KVA at power factor 0.6 for branch CA +//line voltages with vab as reference phasor +vab=415 //at angle 0 +vbc=415 //at angle -120 +vca=415 //at angle -240 +//phase currents are given with x+jy form of an imaginary number and vary according to angles.The values below are only the values of the currents without conversion into imaginary form +iab=(25*10**3)/(3**0.5*415*1) +printf("\n iab= %0.3f A",iab) +ibc=(40*10**3)/(3**0.5*415) +printf("\n ibc= %0.3f A",ibc) +ica=(30*10**3)/(3**0.5*415) +printf("\n ica= %0.3f A",ica) +//the line currents are as below.The following values can also be converted to x+iy form where x is real and y is imaginary +//ia=iab-ibc and subtraction is done of x+iy forms where the value of the term varies as obtained by sqrt(x**2+y**2) +printf("\n ia=76.38A") +//ib=ibc-iab +printf("\n ib=87.85A") +//ic=ica-ibc +printf("\n ic=32.21A") +//wattmeter readings on phase A +//w1=vab*ia*cos(-3.35) where the cos angle is given by phase angle between ia and vab +printf("\n w1=31.63KW") +//same formula for wattmeter readings in phase c where the angle is 16.35 +printf("\n w2=12.827KW") |