11.8 a) Is the circuit in Fig. P11.8 a balanced or unbal- PsPICE anced three-phase system?...
In the balanced three-phase, four-wire system of Fig. 5-28 with v 180 sin(400t), all single-phase rectifier systems are identical and each current source is 10A. (a) Find DF value of the input i (b) Find the rms value of i, and the neutral current i, (c) Find the power factor. 추 phase rectifier system ib Fig. 5-28 In the balanced three-phase, four-wire system of Fig. 5-28 with v 180 sin(400t), all single-phase rectifier systems are identical and each current source...
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...
According to the circuit in the figure, there is a balanced three-phase system with star configurations. Let Vbc = 120∠60° and a line resistance Rw = 0.5 ohms. If the total load (which also includes the line resistance) extracts kVA at a lag fp = 0.8. Decide: a) The power lost in the line resistance b) Van Rw RW C Vch V n N (12+) Zp a A 2 V bn 1p Rw b B
7.36 The switch in the circuit shown in Fig. P7.36 has PSPICE been in position a for a long time. At t=0, the MULTISIM switch moves instantaneously to position b. a) Find the numerical expression for it) when 120. b) Find the numerical expression for v.) for t2 01. Figure P7.36 1=0 ь 102 312002 50A 380 V.3 402 40 mH 800 V
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...
Questions cover CLOS Question 3 In a balanced three-phase wye-wye system, the source is an abe-sequence set of voltages and Van-120/40 V rms. If the a-phase line current and line impedance are known to be air Arms and 1 +jl Ω, respectively, find the load impedance Ans) Questions cover CLOS Question 3 In a balanced three-phase wye-wye system, the source is an abe-sequence set of voltages and Van-120/40 V rms. If the a-phase line current and line impedance are known...
connected 3-phase load consisting of three identical impedances Z= 48ے36.870 W. 3-Phase System Using MATLAB/Simulink Analysis of Y-Y connected balanced 3-phase circuit using Matlab A 2400-V rms balanced 3-phase 60-Hz supply is applied to a balanced Y-connected 3-phase load consisting of three identical impedances Z- 4836.870 W. The circuit diagram is shown in Fig. 3. Taking the phase to neutral voltage Van as reference. Calculate 1) The phase &line voltage Van, Vab 2) The phase current for any phase- line...
1. In a three-phase balanced wye-wye system, the source is an abc-positive sequence set of voltages with Van- 120 20 Vrms. The per phase impedance of the load is 5 +j62. If the line impedance per phase is 0 Ω, find the line currents, the line to line voltages at the source, and the line to line voltages at the load 120 20 Vms 2. In a three-phase balanced wye-wye system, the source is an abc-sequence set of voltages with...
3.29 For the circuit in Fig. P3.29, calculate 11 and using PSPICE current division. MULTISIM Figure P3.29 8Ω 4Ω 12 60 Ω 250 mA 30 Ω 20 Ω
In a balanced three-phase system, the source is wye-connected and the source voltage of phase A is Van = ∠ 120 20 V. The load consists of two balanced wyes in parallel with phase impedances of 8 + j6 Ω and 12 + j8 Ω. If the line impedance is zero, find the line currents and the phase currents in each load. (Hint: use per phase analysis, then do angle shift for each phase.)