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Question 2: Three phase circuit. (100p) A wye connected generator supplies a delta connected balanced load...
Problem 2:Three phase droult (42 pts) A three-phase wye connected generator ﹃plies two paral el loads through a feeder. tad is matalaeeday connected load and load 2 is a balanced delta connected loed. System data: Generator: Rating S-5oo MVA; Line Voltage: Veu-25KV; Feeder impedance: 7-(0.08 jo 62) O/mile, length-8 miles Generator reactance Xe- 1108: P.-75MW pf c-o.78 (all the power factors are lagging) (a) Draw the one-line diagram and a three-phase equivalent circuit (8pts) (b) Calculate the generator and feeder...
Section 2: Three phase circuit Three phase wye connected generator supplies two parallel loads through a feeder. Load 1 Is an unbalanced wye connected load and load 2 is a balanced delta connected load. System data: Generator: Sg = 600 MVA; vg-11-25KV; Xg = 11896; Feeder: Z (0.08+j0.62) Ω/mile, length-8 miles Load 1: VII = 24KV, Pa =75MW Pb 75MW Pc=75MW pf_a=0.8 pf b 0.84 pf_c=0.78 Load 2: VIl-24KV; P total-225MW, pf 0.8; (all the power factor is supposed to...
I. A balanced three-phase positive sequence wye-connected 60Hz source voltage has line-neutral voltage of V, 1000 V. It is connected to a three- phase wye connected load whose impedance is z 50+j37.7 2 a. Find line currents ia ib, ic and line-line voltages Vab, Vbo Vac b. Find the total complex power delivered to the load. c. Find delta-connected capacitor bank needed to bring the PF to 0.95 (lagging) of system. d. Re-calculate currents la, ib, io with Case c....
I. A balanced three-phase positive sequence wye-connected 60Hz source voltage has line-neutral voltage of V, 1000 V. It is connected to a three- phase wye connected load whose impedance is z 50+j37.7 2 a. Find line currents ia ib, ic and line-line voltages Vab, Vbo Vac b. Find the total complex power delivered to the load. c. Find delta-connected capacitor bank needed to bring the PF to 0.95 (lagging) of system. d. Re-calculate currents la, ib, io with Case c....
A balanced wye-connected load and a balanced delta con- hected load are supplied by a three-phase 480-V 50 HZ generator. The ranch impedance of the wye and della are 10/30° 2 and 20/-50° 2. respectively. Determine the active and reactive powers drawn by each three loads. Determine the phasor voltage and phase any one branch of each three-phas e branch of each three-phase load, and substitute into wer equation for balanced three-phase loads. Given ise angle of V is 30...
Show the circuit for a three-phase, AC(60Hz), WYE configured generator connected to a balanced load of three resistors(Each 100 Ohms) wire in a delta configuration. Find: a.) current in each coil of the generator b.)the power generated in each coil c.) the total poor output of the generator d.) the current in each line to the load e.) voltage across each resistor f.) current in each resistor g.) power dissipated in each resistor h.) total power in the entire load...
A three-phase generator connected in star generates a phase voltage of Vθ = 220 Vrms and supplies a three-phase load also connected in star. The three phases of the generator are connected to the three loads shown Remember that the return of the current of each charge is through the Neutral. a) Calculate the phase, line, load and neutral currents b) Calculate the phase, line and load voltages c) Calculate the powers of Apparent (S), Real (P) and Reactive (Q)...
A three-phase generator connected in a star generates a phase voltage of Vθ = 2500 Vrms and supplies a delta-connected three-phase load. The three phases of the generator feed 3 equal charges each composed of R = 10 Ω, XC = 4Ω and XL = 10Ω. a) Calculate the phase, line and load currents b) Calculate the phase, line and load voltages c) Calculate the powers of Apparent (S), Real (P) and Reactive (Q) delivered by the generator d) Calculate...
1. A balanced delta-connected load has 12 +j16 ohms impedance per phase, and is energized by 208 V line-to-line. The phase sequence is ‘a-b-c'. (a) Find the line and phase voltages and currents at the delta load, and show them in a phasor diagram. (b) If the delta-connected load is rewired and connected in wye, show the line and phase voltages and currents at the wye load in a phasor diagram.
3. A balanced three-phase delta connected load with 15+j10 ohms load on each balanced, wye connected source with Van branch is supplied by a -7.6240 KV, while the transmission line impedances are 1+7j on each line. Calculate the line currents (currents on the transmission lines) la, 1b, and 1c. (Hint: convert the Δ configured load into a Y configured load