A 415V three-phase supply is connected to three star-connected loads in  parallel, through a feeder of impedance (0.1 + j0.5) Ω/phase. The loads are as  follow: 5kW, 5kVAR; 4kW, 2kVAR; 10kW, 2kVA. Determine the following:  i) Total load  ii) Line current  iii) Active power loss per phase  iv) Reactive power loss per phase  v) Total active power supply vi) Total reactive power supply  vii) The overall power factor

Q: A three phase system cannot be obtained using two single phase source.

A: given two single phases source we need to obtain 3 phase source

Q: 4-A balanced A (delta) connected source has an internal impedance of 0.018+j0.162 0/phase. At no…

A: For drawing the phase equivalent, we have to determine the phase parameters. For delta…

Q: A balanced three-phase distribution line has an impedance of (1 +j8)ohm/phase .This line is used to…

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Q: In the power system  the magnitude of the sending end and receiving end voltages are kept at 1pu.…

A: Steps: Find total load demand and total power injected at bus bar Find angle using active power P…

Q: A voltage of 200 253"8' is applied across to impedances in parallel. The values of impedances are…

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Q: The following three-phase circuit is symmetrical, with line voltage 220 V, 60 Hz, direct phase…

A: Given data: VL-L=220V, Frequency,f=60Hz Zan = 10 ohms, Zbn = -10j ohm, Zcn = -10j Ohm

Q: For the circuit shown below, all the voltage values are given in rms. The apparent power of the…

A: The given circuit is: All voltages values are given in RMS. Apparent power of three phase load,…

Q: The one-line diagram of a three-phase power system is shown in the above figure. The line impedances…

A: Given  One line diagram of a three phase system

Q: A balanced 3-phase circuit has these characteristics: Vab = 40sqrt(3) V (rms), Zg = 5 + j10 ohm, ZI…

A: Step 1: Step 2: Step 3: Step 4:

Q: There is an installation with two equal three-phase loads of 150 kW each and a power factor of 0.9…

A: Voltage and current  at different loads R-Load - There is no phase difference between voltage and…

Q: 18: A series resistive inductive load is energized from a 240V(RMS), 50HZ single phase A. supply,…

A: Given a series RL circuit having, Energized voltage, V = 240 V (rms) Frequency, f = 50 Hz Active…

Q: Two balanced three phase loads are connected in parallel, the loads are L1= 20 kW at 0.7 pf lead,…

A: Active Power(P): The power which is deployed and absorbed by the electric circuit to do some useful…

Q: In a balanced delta connected 3-phase circuit , has resistance 25 ohm and inductive reaction 40 ohm…

A: By ohms law Phase current in the delta connected load= Line voltage/ phase impedance power consumed…

Q: Ex2: Two trausformers A and B are Connected in parallel their impedances in secondary terms are ZA =…

A: two transformers A and B are connected in parallel to a load of (2+j1.5)ohm their impedances in…

Q: A manufacturing company has privately contracted your company to rewire the mechanical workshop in…

A: Primary voltage VP is  400 V, f= 60 Hz start connected three phase supply from the utility.…

Q: Va Vc la In Ic Line Impedance Line Impedance Line Impedance Line Impedance Load Load n Figure 1.…

A: GIVEN DATA:-Va=120<0°Vb=170<−120°VC=170<−240°Zload=20+j20Zline=1+j10A). Line currents and…

Q: A three-phase impedance load consists of a balance A load in parallel with a balance Y load. The…

A: It is given that: Z∆=27+j6ZY=1+j1Zn=j13V0=10∠60°V1=100∠0°V2=15∠200°

Q: Three Impedances each of (12 - j20)0 are connected in mesh across a three-phase 415V ac supply.…

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Q: Line voltages in a balanced 3 phase system are always greater than or equal to phase voltages.…

A: For star connection,  Line voltage =sqrt(3)× Phase voltage. In delta connection  Line voltage =phase…

Q: Show that the total instantaneous power in a balanced three-phase circuit is constant and equal to…

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Q: In a three phase balanced Y-Y system, the source phase currents have a magnitude of 9 A. The…

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Q: Use the Y-Y circuit shown below, a)Solve for the phase voltage at load end b)Solve for the phase…

A: In this question we need  a)Solve for the phase voltage at load end b)Solve for the phase current.

Q: For a system with total complex power of 10000 + 7500j VA, nominal voltage of 250 angle 30 deg. and…

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Q: n 3-phase alternator, the change of terminal voltage from no load to full load is more in case of…

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Q: below, z, = 2 + j2 Q, z, = 4 - j3 N, z, = 6 + j8 N, j12 Q. Calculate (a) the total 3. For the…

A: The solution is given below

Q: (a) If an H winding and an X winding short together, the result will be this is a normal mode of…

A: (a) If an H winding and an X winding short together:High current flow and transformer failure:This…

Q: The equivalent impedance per phase of a star-connected load are as follows: Za= 100 Ohms, Zb=j5…

A: Total power: The quantity of power in a circuit at any particular time is known as instantaneous…

Q: A -600 µC charge (blue charge) and a 800 µC charge (red charge) are positioned as shown in the…

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Q: 4A balancedA (delta) connected source has an internal impedance of 0.018+j0.162 0/phase. At no load,…

A: Zs△ϕ=(0.018+j0.162) ohm/phaseZsyϕ=Zs△ϕ3=0.018+j0.1623     =(6×103+j0.053)ohmZline=(0.074+j0.296)…

Q: Three symmetrical three-phase loads are connected in parallel. Load 1 is connected in Y with an…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: (b) Figure Q5(b) shows a 3.5 km long single phase distributor supplied two loads. The loads…

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Q: In a positive sequence Y-connected three phase balanced system, the phase voltage in phase (a) is…

A: The answer is option B

Q: Find the IBC load current b) Give the VCA line voltage c) Calculate the total complex power on the…

A: Find the IBC load current?   Give the VCA line voltage?  Calculate the total complex power on the…

Q: The positive sequence harmonics component will add current to the neutral wire. Select one: O True O…

A: we know that positive sequence components are displayed by 120 degrees each other and sum of…

Q: Find the total real power dissipation in a balanced delta-connected system. Phase voltage is 100V…

A: Given: A balanced delta connected system Phase voltage, Vph=100 V Load impedance, Zph=175 Ω Power…

Q: 7. Consider an equivalent single phase circuit as shown in the figure V=22040° i) ii) a → I 111 ZI…

A: In this question, we need to determine the all current as shown the circuit and real, reactive power…

Q: 3- The single phase loads in the circuit can be described as follows: Load 1 absorbs an average…

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Q: What are the breakdown voltage VZ and Zener resistance RZ of the diode depicted ?

A: Given:  The diode characteristics can be shown as:

Q: A three-phase impedance load consists of a balance A load in parallel with a balance Y load. The…

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Q: The following loads are served by a balanced three-phase source: Load 1: 18 kVA at 0.8 pf lagging…

A: load 3

Q: QUA power plant has to meet the following load demand: Load A: 100 MW from 8 AM - 6 PM Load B: 150…

A:

Single Phase AC Circuit

Alternating Current (AC) is a type of electric power in which the electric current changes, both in magnitude and direction, at regular intervals. This AC Circuits can deliver power in either a Single Phase system or a Three Phase system.