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One line voltage of a balanced Y-connected source is
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EBK FUNDAMENTALS OF ELECTRIC CIRCUITS
- The output of the balanced positive-sequence three-phase source in the figure is 64 kVA at a lagging factor of 0.8. The line voltage at the source is 256/3 V. power (Figure 1) Find the magnitude of the line voltage at the load. Express your answer in volts to three significant figures. Figure Balanced three-phase source 0.04 2 w 10,2 2 m 0.04 0.2 0 0.04 w 10,2 2 Balanced three-phase load 1 of 1 |VAB= Submit Request Answer Part B V Find the total complex power at the terminals of the load. Express your answer in volt-amperes to three significant figures. Enter your answer in rectangular form. S= Submit Request Answer VAarrow_forwardFor the circuit shown in Fig. below , find a) the phase currents IAB, IBC, and IcCA b) the line currents IA, Ib, and Içc when Z1 = 2.4 - j0.7 N, Z = 8 + j6 N, and Z3 = 20 + j0 N. %3D 480/-120° V 480/0° V Zz В 480/120° Varrow_forwardBased on the circujit below, deterimene i. the real and reactive power supplied or received by each source. i. Power loss in the line. Z = 1+ j7N I12 V1 120L-5 V V2 = 10020 Varrow_forward
- For the balanced A-A circuit of the figure below, calculate the phase and line currents (lAs and Ia). A 30 2 173/0 V j10 2 30 Ω 173/120° V E B 30 2 10 2 173 120° V 10 2 C Select one: O lAB = 5.472-18.43° Arms and Iaa= 9.4742-48.43° Arms O laB = 5.47 18.43° A and I4= 9.474248.43° A O IAB = 5.472-18.43° mA and Ig4= 9.474 48.43° mA %3D %3D O lAB = 5.47218.43° A and Ia= 9.474z-48.43°A O IAB = 5.472-18.43° A and lA= 9.4742-48.43 A wwele wwarrow_forwardA single phase transmission line is delivering 500 kVA load at 2 kV. Its resistance is 0-2 0 and inductive reactance is 0-4 0. Determine the voltage regulation if the load power factor is 0-707 lagging. O 8.5 % O 7.2 % O 5.3 % O 6.4 %arrow_forwardThe figure shows a 3-phase balanced positive sequence electrical system. The current Ia : %3D a A Balanced 230/20 Vms (+) sequence Select one: O a. 23 /-45 Arms b. 39.84 /-75 Arms O c. 23 /45 Arms O d. 23 /75 Arms е. 23 /195 Armsarrow_forward
- 1. The following are the given for the circuit below: VRY = 220 cis 0°, VYB = 220 cis -120° and VBR = 220 cis -240°. IR = 10 cis 0°. The load is balanced and delta connected. Determine the: (a) Impedance per phase (b) Current per phase (c) Line currents. B R reellee mmm mmm Y Iy ĪB ĪR B R ZBR VYB ZRY Yarrow_forwardFor the given network; by using loop analysis do the following: + V1 ll 6Ω 1 XL I2 I3 E = 12 V z 0° ) ZT Xc, 12 N a. Find the total impedance Zr. b. Determine the currents. c. Calculate delivered power from source.arrow_forwardThe circuit below is excited by a balanced three-phase source with a line voltage of 380 V. If Z₁ = 1+j, ZA = 24-j30 , and Zy = 12 + j5 2, determine the magnitude of the line current of the combined loads. ⒸL-2472 A No answer is correct OIL-31.47 A OIL-13.66 A bo Z₁ N Z₁ Z₁ ZA DD N ZA Zy Zy Zyarrow_forward
- The equivalent impedance per phase of a star-connected load are as follows: Za= 100 Ohms, Zb=j5 Ohms, Zc= -j5 Ohms. If the load is connected to a 440 V supply, phase sequence an-bn-cn. Total power of the load." (THIS PROBLEM IS MULTIPLE CHOICE PLEASEE CHOOSE A LETTER BELOW AND PROVIDE YOUR CLEAR SOLUTION!) A 880 VA lag B 645.3333 VA C 717 VA D 880 VA leadarrow_forward1. The following are the given for the circuit below: VRY = 220 cis 0°, VYB = 220 cis -120° and VBR = 220 cis -240°. IR = 10 cis 0°. The load is balanced and delta connected. Determine the: (a) Impedance per phase (b) Current per phase (c) Line currents. B R reellle relllle momm Y RY Iy IB ĪR B R ZBR VYB ZRYarrow_forwardDevelop the following problems in a clear and orderly way. Use 4 decimal places for magnitudes, real and imaginary values and 2 decimal places for the angle. Use the node numbering is indicated on the diagram. Indicate what you are calculating in each section of your procedure. problem #1 A three-phase line with an impedance of (0.2+j1.0) Ω per phase feeds three three-phase loads balanced connected in parallel. The characteristics of the loads are summarized in the following table: load 1 Consumes 150 kW and consumes 120 kVAR load 2 Delta connected. Impedance of (150-j48) Ω per phase load 3 120 kVA, pf=0.6 (+) If the line-to-neutral voltage on the load side of the line is 2000 V, determine: a) The line-to-line voltage on the supply side of the line. b) The phase and line currents of load 2arrow_forward
- Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning