1. A balanced three-phase circuit has the following characteristics: a. Y-Y connected b. The line voltage at the source, Vab is 415.69 angle 90 deg. c. The phase sequence is negative d. The line impedance connecting the load and source is 4 + 5j ohms per phase. Determine: The line current of each phase and the line voltage of the load terminal.

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: An unbalanced three-phase wye-connected and grounded load is connected to a balanced three- phase…

A: It is given that an unbalanced three-phase wye-connected and grounded load is connected to a…

Q: If the supply voltage in three phase delta connection is 400 V, Calculate phase voltage. a. 400 V b.…

A: Line voltage is given as,

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: 1+ j2 Q bVl = 207.85 V 15 + j18 Q

A:

Q: 5. A substation receives 4,500 kW power at 0.9 p.f. lag. at 10 kV from a generating station over a…

A:

Q: Write an introduction about:  LOAD BALANCING in 3-Phase System

A: Three-Phase System -  A three-phase system is formed out of a three-phase voltage source that is…

Q: The currents flowing in the lines toward a balanced load connected in A are Ia 10020° A, I, =…

A: Given line currents are, Ia = 100∠0° AIb = 141.4∠225° AIc = 100∠90° A

Q: (c) A balanced three-phase wye-connected load is connected to a balanced three-phase delta-connected…

A:

Q: H.W. 4: A balanced three-phase A-connected load is fed from a balanced three-phase circuit. The…

A:

Q: A three-phase feeder provides two loads A and B at 380 V (Figure 2). considering the impedance of…

A: The voltage provided by the feeder is the line voltage and load impedance given in the question is…

Q: The figure below shows the one-line diagram of a three-phase power system. By selecting a common…

A: In this question we need to draw a per unit impedance diagram of the given system.

Q: 4. In a balance 3-phase system, the load is wye-connected and one of the values given is 10230 2. If…

A:

Q: For a single phase network shown in the figure below, work in per-unit with 200 VA & 250 V as base…

A: In this question we need to find a load current of the given system.

Q: 15. When the three-phase balance load having a pure resistive load the current is a) leading to the…

A: 15)Given;When the 3-phase balance load having a pure resistive load the current is--?Let as know…

Q: What is the angle between 'R' phase voltage and 'RY' line voltage in a balanced three-phase star-…

A: Given a balanced three phase system The positive phase sequence of the three phase is…

Q: A Sketch the circuit diagram of a star connected three phase load and mention the line and phase…

A:

Q: When does the PLC counter instruction increment its current count? O Whenever the count input…

A: The programmable counter in PLC will act as a counter similar to the mechanical timer.

Q: ree delta-connected bad impedances, Zab = 82, 2pc = 8 - j6 12, and = 8 + j6 2, are connected to an…

A:

Q: In a balanced three-phase circuit (positive sequence), the set of line-to-line voltages leads the…

A: Line voltage: the voltage across any pair of lines Phase voltage: the voltage across a single phase

Q: A balanced three-phase Y-connected source with positive sequance has an internal voltage of 120…

A: The answer as given below

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: Consider the three-phase system given in Figure Q1. The parameters of the system are: Generator…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: For the balanced positive-sequence three-phase circuit below, given that Van=100410° V and Za=15455°…

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Q: H.W. 1 Poly -phase Systems A threephase, four-wine, 208 volt, CBA ystem has a wyeconeted load with…

A: The solution can be achieved as follows.

Q: None

A: 1. Basics of Three-Phase Power:Definition: Three-phase power is a method of electrical power…

Q: Write a conclusion about : MODELLING OF 3 PHASE POWER SYSTEM USING MATLAB SIMULINK SOFTWARE .

A: Given: Write a conclusion about: MODELLING OF 3 PHASE POWER SYSTEM USING MATLAB SIMULINK SOFTWARE.

Q: . Calculate the line currents for phase a, b and c. 2. Calculate the line-to-neutral voltages at the…

A: From the given circuit  Van = 120 ∠0 V V bn = 120∠-120 V  V cn = 120 ∠-240 V  R a=R b=R c=…

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

A:

Q: In a three phase Delta-Wye connection a.) What is the relationship between the line to line voltage…

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Q: 3. A 4160 volt, three-phase system delivers 500 KVA at a power factor of 70.7% lagging, to a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: H.W. 4: A balanced three-phase A-connected load is fed from a balanced three-pha circuit. The…

A:

Q: 2. In an unbalanced system, the phase voltages are: Vna = 13240 What is the line to line voltage…

A: In this question,  Unbalanced voltages are given.  Find the line voltage VCB  ?  VCB = Vnb -Vnc

Q: The three phase power and line-line ratings of the below electric power system is given below: V. Vm…

A: Given To find new per unit impedance

Q: A balanced delta connected load of 14+j16 ohm per phase is connected at the end of three phase line.…

A: Given:  A balanced delta connected load per phase impedance=(14+j16) ohm Per phase line…

Q: A three-phase Y-connected load (6, 8, 10 Ohm) are energized by a balanced Y-connected three-phase…

A:

Q: In a star connected three-phase balanced (RYB) system, the phase angle between phase voltage ( VR…

A: In a star connected three-phase balanced (RYB) system, the phase angle between each  phase is 120°.…

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

A:

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: An Alternator having three-phase, 3-wire ABC system supplying an effective line voltage of 120 V,…

A:

Q: A delta connected load with Zab=3 + j2 Ohm, Zbc=3 + j4 Ohm and Zca=2+j3 Ohm are connected the end of…

A: It is given that a balanced delta-connected load per phase is connected at the end of a three-phase…

Q: Q. 2a) The impedance Z, and Z2 are connected in parallel across 200 V, 50 HZ single phase ac supply.…

A: Given two impedances are in parallel. Current through Z1 is 2∠-36.86°A. Current through Z2 is I∠θ°A.…

Q: 1. We can change the sequence of a three- phase system by 2. The time of transient period is 3. In…

A: A three-phase system is a system with three-phase voltages, all three voltages are separated by an…

Q: A load of 138+j460 Ohm is supplied through 3+j14 Ohm line as shown in Figure 1. (a) Find the average…

A: The circuit is given as here Load Impedance ZL=138+j460Ω   Line Impedance Zline=3+j14Ω

Q: 6. Find the load impedance Z for the network shown for maximum power to the load. a. 1.26417° N b.…

A: This question belongs to circuit theory . It is based on the concept of maximum power transfer to…

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.