2. The line voltage VAB at the terminals of a balanced three-phase A-connected load is 4000<0° V. The line current is laA is 60.200 A. Determine the following; a. all the load currents (if the sequence is positive (abcabec.... (3 pts) b. all the load currents (if the sequence is negative (acbacb..... (3 pts) c. per-phase impedance of the load (3 pts)
1) Figure- generator is producing a line voltage of 480 V, and the line impedance is 0.09 + j0.16 . Load 1 is Y connected, with a phase impedance of 2.5236.87° 0 and load 2 is A connected, with a phase impedance of 54-20° n. shows a three-phase power system with two loads. The A-connected 2 0.09 j0.16 n w Vca= 4802-240° V + Vab = 48020 V Vhc = 480-120° V 0.09 j0.16 0.09 j0.16 Load 1 Load 2...
Question 5 6+3j ohm 4 o | 110/0° Ꮩ 11 +9j Ohm 110-240 V 110-120° v B 11 +9j Ohm N 6+3j ohm 11 +9j Ohm 6+3j ohm Figure 1. For the circuit of the three-wire Y-Y system in Figure 1 above, a) Calculate the total impedance Z b) Calculate the current in phase a c) Calculate the load phase voltage VAN d) Calculate the current in phase b e) Calculate the load phase voltage Von f) Calculate the current...
Q2. A three-phase unbalanced delta-connected load containing impedances Z1, Z2 and resistor R3 is connected to a three-phase power source of 380 V, 50 Hz in positive sequence A-B-C as shown in figure Q2. It is known that line current Ic is 54 292° A. The power consumption of load R3 is 18050 W. The impedance of Zi is 20 -70° 2. By taking VAB as reference, calculate B BB/ Z2 TBC figure Q2 (a) the line voltage VAB, VBC...
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....
help find those answers please 10) In a certain A-connected balanced load, the line voltages are 230 V and the impedances are 60 35 2. Determine the magnitude of the phase currents A) 1.63 A B) 2.78 A C) 3.83 A D) 4.15 A 11) In a certain Δ-connected balanced load, with line voltages of 230 V and impedances of 60 L35Ώ, determine the total power A) 920.2 W B) 2346.3 W C) 1572.9 w D) 1250.9 W 12) For...
Please I need an answer to all questions -= 120 12 R 112022 Vs = 75 V R32 2202 "X, = 900 12 Figure 19-4 2 3) 23) Given the circuit in Figure 19-4, what load value should be used to replace R2 to obtain the maximum power transfer to the load? Determine the type of load, and express the value in rectangular form. A) 88.1 22-j39.422 B) 64.12 - 373.62 C) 168 2 + j76.82 D) 168 22 -...
Is N N Vo V's Vo Vs LOAD LOAD Figure 1 It has been shown in lectures that from the equality of power generation and power consumption, and as far as the average input/output voltages and currents are concerned, the buck and boost converters' operation in CCM (continuous current mode) are similar to the operation of the ideal AC transformers. So these converters may be considered as "ideal DC transformers". A buck converter operates with a duty cycle D 0.4,...
2. The transformer is loaded: 15 KW load, 0.9 lagging PF, and Vs=450 V. a) Find the voltage at the high-voltage side of the transformer (Vp). b) Find the Voltage Regulation and the Efficiency of this transformer under this load. Page 2 of Problem 3 The equivalent circuit of a 22KVA, 11700/450 V, 60Hz, single phase transformer when referred to its low-voltage side is considered in this problem. The transformer is connected to a load. 0.225+j1.12 's ROXO + Up...