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1. Solve the following three-phase problem A 3-phase line has an impedance of 0.6+j3 Q/phase. The...
The impedance of a three-phase line is 0.3 + j 2.4 per phase. The line feeds...
The impedance of a three-phase line is 0.3 + j 2.4 per phase. The line feeds two balanced three- phase loads connected in parallel. The first load takes 600 kVA at 0.7 p.f. lagging. The second takes 150 kW at unity power factor. The line to line voltage at the load end of the line is 3810.5 V. Find a) The magnitude of the line voltage at the source end of the line. b) The total active and reactive power...
A three phase line has an Impedance of 0.4+j2.7 Ω per phase. The line feeds two...
A three phase line has an Impedance of 0.4+j2.7 Ω per phase. The line feeds two balanced three phase loads that are connected in parallel. The first load is absorbing 560.1kVA @ PF=0.707 lagging and the second load absorbs 132kW @ PF=1. The line-to-line voltage at the load side is 3810.5/_30° V. Determine: a) The magnitude of the line voltage at the source side b) Total active & reactive power loss in the line c) Active and reactive power at...
A three-phase line with an impedance of (0.25+j1.25) ohms/phase supplies power to three balanced 3-phase parallel...
A three-phase line with an impedance of (0.25+j1.25) ohms/phase supplies power to three balanced 3-phase parallel connected loads: • Load 1 absorbs a total of 125 kW and 100 KVAR • Load 2 is a delta-connected impedance load with (125+j 40)ohms/phase • Load 3 absorbs 120 kVA at 0.8 power factor (lagging) Given that the line-neutral voltage at the load end of the line is 2400 V, determine the magnitude of the line-to- line voltage at the source end of...
Problem 3: (20 points) ase serves two balanced parallel loads. The line- A three-phase transmission line...
Problem 3: (20 points) ase serves two balanced parallel loads. The line- A three-phase transmission line with an impedance (0.2 +j1.0) 12/phase serves two balan to-line voltage at the load end of the line is 480 V (rms). Load 1: Wye-connected and absorbs a total of 200 kW with a lagging p.f. of 0.87. Load 2: Delta-connected with an impedance of (20+30) 2/phase. a. Draw the single phase representation of the circuit b. How much current flows through phase A...
Question: A three-phase line has an impedance of 1 + j2 Ω per phase. The line...
Question: A three-phase line has an impedance of 1 + j2 Ω per phase. The line feeds two balanced three-phase loads that are connected in parallel. The first load is Y-connected and has an impedance of 20+j40 Ω per phase. The second load is ∆-connected and has an impedance of 30-j60 Ω per phase. The line-to-line voltage at the load end of the line is 415V. Taking the phase voltage Va as reference, determine: a) The total current per phase...
A three-phase line, which has an impedance of (2 + j4) Ω per phase, feeds two...
A three-phase line, which has an impedance of (2 + j4) Ω per phase, feeds two balanced three-phase loads that are connected in parallel. One of the loads is Y- connected with an impedance of (30 + j40) Ω per phase, and the other is delta- connected with an impedance of (60 + j45) Ω per phase. The line is energized at the sending end from a 60-Hz, three phase, balanced voltage source of 120√3 V (rms, line- to-line). Determine...
Please show detailed steps. Thanks Problem # 1: Three Phase Power [35 points] A three-phase substation...
Please show detailed steps. Thanks
Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 2/0; load 2 is A-connected with an impedance of 2400-j18000/0; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 0/0. The magnitude of the line-to-neutral voltage at the load end of the line is 2413 kV. Calculate the total complex power at the sending end of the line. :) Magnitude of the total...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an aboc phase-sequence and is connected in delta. There are two rallel wye-connected loads. The phase impedance of load i and load 2 is 4 The line impedance connecting the source to the loads is 0.3 + j0.2 2. If the curre IAN! = 10/20-Arms, find the delta currents in the source 4 Ω and 10 +/4 Ω, respectively. nt in the a phase of...
AC Circuit Analysis 3. Three balanced three-phase loads are connected in parallel. Load 1 is Y-...
AC Circuit Analysis
3. Three balanced three-phase loads are connected in parallel. Load 1 is Y- connected with an impedance of 400 + j300N/0 load 2 is A-connected with an impedance of 2400 – 18001/¢, and load 3 is 270 +39000kVA. The loads are fed from a distribution line with an impedance of 1 + j4N/0. The magnitude of the line-to-neutral voltage at the load end of the line is 1673 kv. a) Calculate the total complex power at the...
A three-phase line with an impedance of (0.25+j1.25) ohms/phase supplies power to three balanced 3-phase parallel connected loads: • Load 1 absorbs a total of 125 kW and 100 KVAR • Load 2 is a delta-connected impedance load with (125+j 40)ohms/phase • Load 3 absorbs 120 kVA at 0.8 power factor (lagging) Given that the line-neutral voltage at the load end of the line is 2400 V, determine the magnitude of the line-to- line voltage at the source end of...
Problem 3: (20 points) ase serves two balanced parallel loads. The line- A three-phase transmission line with an impedance (0.2 +j1.0) 12/phase serves two balan to-line voltage at the load end of the line is 480 V (rms). Load 1: Wye-connected and absorbs a total of 200 kW with a lagging p.f. of 0.87. Load 2: Delta-connected with an impedance of (20+30) 2/phase. a. Draw the single phase representation of the circuit b. How much current flows through phase A...
Please show detailed steps. Thanks
Problem # 1: Three Phase Power [35 points] A three-phase substation bus supplies three wye-connected three phase loads that are connected in parallel through a three-phase feeder with an impedance of 0.3 30 per phase Load 1 draws 75kVA at 0.866 lagging power factor, load 2 draws 45 kW at 0.70 leading power factor and load 3 draws 20 kVAR at 0.85 lagging power factor. The line-line voltage at the load is 460V Take the...
Three balanced three-phase loads are connected in parallel. Load 1 is Y-connected with an impedance of 400+j300 2/0; load 2 is A-connected with an impedance of 2400-j18000/0; and load 3 is 172.8+j2203.2 kVA. The loads are fed from a distribution line with an impedance of 2+j16 0/0. The magnitude of the line-to-neutral voltage at the load end of the line is 2413 kV. Calculate the total complex power at the sending end of the line. :) Magnitude of the total...
508 CHAPTER 11 . POLYPHASE CIRCUITS 11.40 In a balanced three-phase system, the source has an aboc phase-sequence and is connected in delta. There are two rallel wye-connected loads. The phase impedance of load i and load 2 is 4 The line impedance connecting the source to the loads is 0.3 + j0.2 2. If the curre IAN! = 10/20-Arms, find the delta currents in the source 4 Ω and 10 +/4 Ω, respectively. nt in the a phase of...
AC Circuit Analysis
3. Three balanced three-phase loads are connected in parallel. Load 1 is Y- connected with an impedance of 400 + j300N/0 load 2 is A-connected with an impedance of 2400 – 18001/¢, and load 3 is 270 +39000kVA. The loads are fed from a distribution line with an impedance of 1 + j4N/0. The magnitude of the line-to-neutral voltage at the load end of the line is 1673 kv. a) Calculate the total complex power at the...
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