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Diffstat (limited to '3035/CH13/EX13.3/Ex13_3.sce')
| -rwxr-xr-x | 3035/CH13/EX13.3/Ex13_3.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/3035/CH13/EX13.3/Ex13_3.sce b/3035/CH13/EX13.3/Ex13_3.sce new file mode 100755 index 000000000..b09df903c --- /dev/null +++ b/3035/CH13/EX13.3/Ex13_3.sce @@ -0,0 +1,25 @@ + + +// Variable Declaration +x = 1.2 //Reactance of interconnector(ohm per phase) +kv = 33.0 //Voltage of bus-bars(kV) +SC_MVA1 = 3000.0 //Short-circuit MVA at bus-bar of first station(MVA) +SC_MVA2 = 2000.0 //Short-circuit MVA at bus-bar of second station(MVA) + + +// Calculation Section +MVA_base = 3000.0 //Base MVA +kv_base = 33.0 //Base kV +x_c = x*(MVA_base/kv_base**2) //Cable reactance(p.u) +x1 = MVA_base/SC_MVA1 //Reactance b/w e.m.f source & bus-bars for station 1(p.u) +x2 = MVA_base/SC_MVA2 //Reactance b/w e.m.f source & bus-bars for station 2(p.u) +V_f = 1.0 //Fault voltage by applying Thevenin's Theorem at FF(p.u) +X_eq1 = x1*(x_c+x2)/(x1+x_c+x2) //Thevenin reactance for short-circuit at bus bars at station 1(p.u) +SC_MVA1_poss = V_f*MVA_base/X_eq1 //Possible short-circuit at station 1(MVA) +X_eq2 = x2*(x_c+x1)/(x1+x_c+x2) //Thevenin reactance for short-circuit at bus bars at station 2(p.u) +SC_MVA2_poss = V_f*MVA_base/X_eq2 //Possible short-circuit at station 2(MVA) + + +// Result Section +printf('Possible short-circuit MVA at station 1 = %.2f MVA' ,SC_MVA1_poss) +printf('Possible short-circuit MVA at station 2 = %.2f MVA' ,SC_MVA2_poss) |