In 3-phase system, the power consumed by star connected load is _times less than delta connected load. 3 times V2 times 2 times O V3 times

Q: Explain in details the relation between phase and line voltages and currents in a starconnected…

A: For a star connected balanced positive sequence three-phase system having equal voltage magnitude…

Q: B)-Draw the connection diagram of three-phase with Y-D connection and give the mathematical…

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Q: Which of the following statements are correct for three phase circuit: A. Sum of all the three phase…

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Q: 5. Let a(n) be a real-valued minimum-phase sequence. Modify r(n) I to obtain another real-valued…

A: x(n) is modified to obtain a real-valued minimum phase sequence

Q: Non-Reactive Loads of 10kW, 20kW and 12kW are connected between the neutral and the red, yellow and…

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Q: In 3-phase system, for the same power, loads connected in star have a higher line current and a…

A: The given statement is false.

Q: 4. A balanced Y-connected 400V voltage source is where Z, = 20-j40 and Z2 = 3+ j45 Ohms a connected.…

A: In this question we will find source current in per unit....

Q: Question 3: For a balanced three phase system as shown in Figure 3. Calculate the phase and the…

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Q: Estimate the requirement of materials and their I phase overhead Service Connection Cost for giving…

A: single phase service connection to building Length of service main =15 m Total load of installation…

Q: In a three – phase system with balanced loads, total power using one wattmeter method is given by -…

A: A circuit of power measurement using three wattmeter method is shown

Q: For a star connected load, line current is the phase current multiplied by √3  True Or False

A:

Q: In a three - phase system with the unbalanced loads, total power can be measured by using three…

A: In three wattmeter method, power is measured across three- phase systems with unbalanced loads.

Q: A balanced delta-connected load with impedance (25.98 + j15) ohms per phase is connected to a…

A: Given data, Zper phase=25.95+j15 Ω Zc=0.4+j0.3 Ω Line voltage V=250 V

Q: In a three phase overhead system , each line is suspended by a string of three insulator. The…

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Q: When working with balanced three-phase circuits, per-phase analysis is commonly done after…

A: Consider that in case of the three phase system, there is no voltage in the neutral point and hence,…

Q: In a 3-phase star connected system, prove that VL =square root of 3 Vph , by considering the line…

A: Need to prove for the given star connected system

Q: In a 3-phase system, the power dissipated in the delta connected load is √3 times greater than the…

A: In a 3-phase system, the power dissipated in the delta connected load is √3 times greater than the…

Q: What is the total three-phase real power drawn by the two loads? Express your answer in Megawatts

A: In this question,   We need to calculate the total real power of the three phase?

Q: () State TWO (2) advantages of three-phase system over single-phase system. (ii) For a three-phase…

A: a(i) The advantages of a three-phase system over a single-phase system are the following:1- For the…

Q: A balanced 3-phase voltage of 360 V line-to-neutrals is applied to a balanced Y- connected load with…

A: Here, Line voltageVa=360 VoltsVb=360 VoltsVc=360 VoltsImpedance-Za=24 jZb=24 jZc=24 jZm=6 j

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

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Q: : A single phase transmission line is having receiving end voltage 22kV and sending end voltage of…

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Q: 2. Give four reasons why three-phase power supply is superior to single-phase supply.

A: Three phase power supply is became popular and also being used over the world wide than single phase…

Q: As shown in Figure 1, a balanced three-phase, positive-sequence source with VAB = 480@0◦ V is…

A: Fig: Given…

Q: A balanced Y-connected voltage source with E = 277/0° volts is applied to a balanced-Y load in…

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Q: 2. Solve for the line currents, phase currents and the total complex power absorbs by the loads.

A: It is given that:

Q: Determine the node voltages after one iteration for the single-phase lateral shown in the figure.

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Q: iv) Draw a single-phase equivalent circuit of the system. v) Calculate the following line currents,…

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Q: Q6 Construct the phasor diagram for a balanced star connected load with lagging currents and prove…

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Q: State the real-time applications of Star and delta connected 3 phase balanced loads. Also, derive…

A: Applications of Star and Delta Connections:- 1) Star connection is used for the starting of heavy…

Q: Non-Reactive Loads of 10kW, 20kW and 12kW are connected between the neutral and the red, yellow and…

A: Line voltage =400V Phase voltage=4003=230.95VPR=Vph2R ∴ Resistance in R phase=Vph2PR=4003210k…

Q: In 3-phase two wattmeter power measurement for delta connected load, the neutral is needed to…

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Q: Explain in details the relation between phase and line voltages and currents in a star- connected…

A: Circuit diagram for star connected network is given by, Here N is the neutral point R is red phase…

Q: (a) The phase voltage and phase current of a three-phase system are 300 V and 15 A. Calculate: For…

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Q: 4. A balanced Y-connected 400V voltage source is applied to two balanced loa where Z, = 20-j40 and…

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Q: Explain in details the relation between phase and line voltages and currents in a star-connected…

A: Let the balanced three-phase star-connected system be as shown below.

Q: Write the node formulation for nodes with the passive element currents given in term of nodes…

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Q: na two-phase circuit, find the unbalance factor of the load voltage when one wire is disconnected.…

A: To find unbalanced factor in two phase circuit.   Explanation below

Q: Using the sequence network of the previous example, determine the phase currents of the loads and…

A: Given : Va=Vb=Vc=100∠0° This voltage is a zero sequence voltage . Hence to compute required current…

Q: 2. Given the following symmetrical components of phase b current: Positive sequence current =…

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Q: For the Δ - Δ circuit, calculate the phase and line currents.

A: to find the current

Q: What are the types of connections in three phase load, which connection is best? Justify your…

A: Four types of connection we have for three phase transformer- Y-Y- This is used for small, H.V.…

Q: In 3-phase two wattmeter power measurement for delta connected load, the neutral is needed to…

A: In 3 phase two wattmeter power measurement for delta connected load, the neutral is needed to…

Q: In 3-phase system, the power consumed by delta connected load is _times more than star connected…

A: Solution

Q: Given the circuit shown below, if Zx = 100<0degrees determine the current in each branch using NODAL…

A: NOTE: Unit of Zx is not given. we assumed it as ohm. We assumed nodes and current directions on the…

Q: For balanced three phase star connected load, the phase angle difference between VR and VY is 120…

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Q: State advantage and disadvantage of delta-connected three-phase voltage source compare to the…

A: Delta connected system has a closed path including the sources and is independent of load.  Where as…

Q: In 3-phase system, the power consumed by star connected load is _times less than delta connected…

A: In this question, we will find relation between power consumed by load resistance R when star…

Q: In a three-phase balanced star connected system, the phase relation between the line voltages and…

A: We will draw phasor diagram of the star connected system showing phase voltages and line voltages.…

KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.