diff options
Diffstat (limited to 'Working_Examples/83/CH4/EX4.3')
-rwxr-xr-x | Working_Examples/83/CH4/EX4.3/example_4_3.sce | 24 | ||||
-rwxr-xr-x | Working_Examples/83/CH4/EX4.3/result_example_4_3.txt | 5 |
2 files changed, 29 insertions, 0 deletions
diff --git a/Working_Examples/83/CH4/EX4.3/example_4_3.sce b/Working_Examples/83/CH4/EX4.3/example_4_3.sce new file mode 100755 index 0000000..9c72377 --- /dev/null +++ b/Working_Examples/83/CH4/EX4.3/example_4_3.sce @@ -0,0 +1,24 @@ +//Taking Base value MVA and KVA +clear;clc; +mvab=645; //Base MVA in 3-phase +kvb=24; //Base KV,line-to-line + +vl=24/kvb; //Load voltage +xs=1.2; +xs=(xs*mvab)/kvb^2; // xs converted to its pu + +//since the generator is operating at full load & 0.9pf +pf_angle=acos(0.9); +Ia=1*(cos(pf_angle)-%i*sin(pf_angle)); //load current +//to find excitation emf +ef=vl+%i*xs*Ia; +delta=atand(imag(ef)/real(ef));//positive for leading +ef=abs(ef)*kvb; //pu to actual unit conversion + if(delta>0) then lead_lag='leading'; + else lead_lag='lagging'; + end +printf('Excitation emf= %0.2f kV at an angle %0.3f (%s) \n\n',ef,delta,lead_lag); +//to find reactive power drawn by load +Q=vl*abs(imag(Ia)); +Q=Q*mvab; //pu to actual unit conversion +printf('Reactive power drawn by laod= %d MVAR',Q); diff --git a/Working_Examples/83/CH4/EX4.3/result_example_4_3.txt b/Working_Examples/83/CH4/EX4.3/result_example_4_3.txt new file mode 100755 index 0000000..17267b8 --- /dev/null +++ b/Working_Examples/83/CH4/EX4.3/result_example_4_3.txt @@ -0,0 +1,5 @@ + +Excitation emf= 47.86 kV at an angle 37.331 (leading) + +Reactive power drawn by laod= 281 MVAR + |