Under Unbalanced Condition With Faults: a. Load Line Currents (la, Ip,!c); b. Load Line Voltages (Vab,Vpc, Vca); c. Load Power Profile (Pr, Qr,St,Ppfr); d. The Fault Current (I,)

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3 Phase System:
Under Unbalanced Condition With Faults:
a. Load Line Currents (Ia, Ip,Ic);
b. Load Line Voltages (Vab, Vpc, Vca);
c. Load Power Profile (Pr, Qr,St, Ppfr);
d. The Fault Current (I,)
Note:
Types of Faults to be Considered, assuming worst case scenario (Z, = 0):
SLGF (line a grounded), LLF (lines a & b connected), 1LO (line a open)
Faults not considered: DLGF, TPF, 2LO
Given:
Answer should be in 4 Decimal places
1.) Source
Ean = 12020° v; Epn = 1502 – 143.13° v; Een = 90490° v (grounded neutral)
Zan = Zpn = Zen = 0.1 + j1.5 N
2.) Line Impedance
Line 2: Ztine a = 1+ j2 N; Zine b = 1 – j2 N; Zitne e = 0 + j2.2361 N
3.) Load Impedance
Load 1b: Zan = Zpn = Zen = 12 + j9 N (ungrounded neutral)
4.) Fault Location → Load Side
34 Source
Zuine
36 Load
Transcribed Image Text:3 Phase System: Under Unbalanced Condition With Faults: a. Load Line Currents (Ia, Ip,Ic); b. Load Line Voltages (Vab, Vpc, Vca); c. Load Power Profile (Pr, Qr,St, Ppfr); d. The Fault Current (I,) Note: Types of Faults to be Considered, assuming worst case scenario (Z, = 0): SLGF (line a grounded), LLF (lines a & b connected), 1LO (line a open) Faults not considered: DLGF, TPF, 2LO Given: Answer should be in 4 Decimal places 1.) Source Ean = 12020° v; Epn = 1502 – 143.13° v; Een = 90490° v (grounded neutral) Zan = Zpn = Zen = 0.1 + j1.5 N 2.) Line Impedance Line 2: Ztine a = 1+ j2 N; Zine b = 1 – j2 N; Zitne e = 0 + j2.2361 N 3.) Load Impedance Load 1b: Zan = Zpn = Zen = 12 + j9 N (ungrounded neutral) 4.) Fault Location → Load Side 34 Source Zuine 36 Load
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