In a negative sequence, the current component of phase' c' ie. Ic2 can be expressed in terms of L2 is L1200 12 None L2400 O LO0

Q: 33. The sequence components of phase A current are: Zero sequence current = 0.47+ Positive sequence…

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Q: Choose correct answer : In delta connection, the phase currents lags the line currents by A) 60° B)…

A: Correct answer is 30° In the delta connection  Phase current lags the line current by 30° Angle…

Q: Decompose the following non-minimum phase system into a minimum phase system and an all-pass system.…

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Q: A surge of 100 kV travels along an overhead line towards its junction witha cable. The surge…

A: we need to determine magnitude of the surge transmitted through the cable.

Q: For a three-phase circuit following an "abc" sequence, which of the following statements about phase…

A: First we will draw phasor diagram with abc as phase sequence than we will select correct option from…

Q: In the three-phase system shown in the figure, phase a is on no load and phases b and C are…

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Q: In star connection, the phase voltages lags the line voltages by О 30° O 120° O 240° О 60°

A: We will draw the phasor diagram to find angle between phase voltage and line voltage.

Q: KEE - Sept. 2002 68. The phase currents of a three-phase system are: A= 100 cis 0°A Ig= 80 cis 240°…

A: The solution is given below

Q: Consider the network given in figure below, where the numbers indicate admittances in per unit. Find…

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Q: 1. From the given circuit, take V₁ = 240, Z₁ = 20 - j3 ohms. Find the phase currents and line…

A: In this question,  We need to determine the phase current, line current and complex power?  We know…

Q: each phase impedance is Zy = 20/30 N. Also. VAs = 120/20 V, and the phase sequence is АВС.

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Q: 12. An inefficient three-wire single-phase system has source voltages of Van = Vnb=720/0° V, line…

A: Given data, Van = Vnb = 720∠0° V,Line resistance RaA = RbB = 1ΩRnN = 10ΩLoad ZAN  = (10+j3 )Ω, ZAB…

Q: Van = 4160 cos (t - 49°), Vbn = 4160 cos (t - 289°), Vcn = 4160 cos (t + 191°)" A   POSITIVE PHASE…

A: Conversion formula

Q: 1. Determine the line currents in the given three-phase circuit. I₂ 44020° 440/120° n a 440-120° (50…

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Q: The currents flowing in the lines toward a balanced load connected in delta are Ia = 100cis0, Ib =…

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Q: The single phase AC sinusoidal current i=/2 I sin(wt+ 0) then the peak value of the current is Ims O…

A: Given:  i=2I sin(wt+θ)i=Imsin(wt+θ) Im = peak currentPeak current =2I Option D

Q: Vab = 200 cos (t - 10°), Vbc = 200 cos (t - 230°), Vca = 200 cos (t - 110°)" A   POSITIVE PHASE…

A: In this question,  We need to choose the correct options What is phase sequence of the given system?…

Q: For the circuit in the figure, Vab = 440 V20°. Find the phase and line currents. -20 11, Ve 20 f EAN…

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Q: Determine the line currents as well as the phase or load voltages in the given circuit. а Ta A…

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Q: The sequence components of phase a current are: zero sequence= 0.47 + j1.49 positive sequence= 18.4…

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Q: 3. The sequence components of phase a current are: Zero sequence component = 0.47 + j1.49 Positive…

A: In this question we will find phase b current with given sequence component of phase current a...…

Q: The currents in a 3- phase unbalanced system are: IR = (12 + j6) A ly (12 – j12) A IB = (-15 + j10)…

A: The solution is given below

Q: The impedance Z in the balanced three-phase circuit shown is 160+j120  Ω. Find 1. a) IAB, IBC, and…

A: Given a delta source and delta  connected load 1.a) The branch AB is parallel to the ab so,…

Q: In delta connection, the phase currents lags the line currents by O 240° O 120° O 30° O 60?

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Q: = 600-90 and la The currents of 3-phase system are la0 = 350-90, Ia1 50-90. Compute the…

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Q: Q: Prove that the capacitance of 3-ph overhead line (with the effect of ground) is given by: 2πε Cn…

A: Capacitance- Capacitance is dependent on the ratio of Q and V and independent of the individual…

Q: The following are the symmetrical components of phase B current. Positive sequence component = 10…

A: In this question positive sequence component of phase B current is given....We have to find out…

Q: Vab = 99∠-114°, Vbc = 99∠-234°, Vcn = 99∠-354°" A   POSITIVE PHASE SEQUENCE B…

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Q: The sequence components of phase b current are: Zero sequence current = 0.77+j1.88 A; Positive…

A: Given that Zero sequence current Io = 0.77+j1.88 A; Positive sequence current I1= 17.4 cis (- 31.8…

Q: In the three phase system, phase is on no load, phase b and c are shorted circuited to ground. The…

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Q: VII. PROBLEMS : 1. The IR drop in the line due to the reactive current is one disadvantage of low…

A: In this question we will write why low power factor load is undesirable...

Q: In a three phase, delta connection O a. Line voltage is square root 3 times phase voltage Ob. Line…

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Q: The sequence component of phase a currents are: I ao = 0 A; I a1 = 10 + j5: I a2 =8 – j5. Determine…

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Q: The zero and positive sequence components of 'a' phase are Va0 =0.5-j0.866; Va1 = 5L0 ,If the phase…

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Q: . The following are the symmetrical components of phase B current. Positive sequence component…

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Q: Determine the load phase currents and phase voltages for the three-phase circuit in item #1 when the…

A: load phase current and phase voltage is caluclated as

Q: Determine Relation between Line Current and Phase Currents in delta-delta connection

A: In a balanced system the three phase currents are equal in magnitude and are displaced from one…

Q: 4-The Line Voltages at the terminal of abalanced A-connected Load is Each Phase of the Load…

A: Line voltage of the Balance 3 phase system VLL = 100 V Find the line current and phase current in…

Q: Find the currents IAB, IBC, ICA, IaA, IbB, IcC, Iba, Icb and Iac since the Z impedance is 100 - j75…

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Q: 1. The line current in the a-phase. OB) Oc) OD) OA) 1.86+j1.16 1.86- 0.07- 0.07+j2.2 E)None j1.16…

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Q: Select one: O a. Phase and line currents are not equ O b. Phase current is zero O C. Phase and line…

A: There are two types of connections in three phase system. They are 1. Star 2. Delta.

Q: The phase voltages across a certain load are given as: Va = 176 – j132 volts Vb = -128 - j96 volts…

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Q: 2- If in an acb phase sequence, Van = 1002 – 20 V then Ven is: a) 1002-140o V O b) 1004100o V c)…

A: The unbalance system can be converted to balance system using symmetrical components. The…

Q: Three unequal single-phase loads are

A: Given-Voltage rating= 230 VoltsFirst load takes connected across 1 and 2= 106A with 0.78 pf…

Q: Write the relationships between Line voltage, phase voltage, line current and phase current of three…

A: Use standard relation between phase and line values in star and delta systems.

Q: Compute the magnitude of the voltage in units of Volts (enter value only, not units) for a componet…

A: Answer:- magnitude of the voltage is 2. Therefore, V= 2

Q: DEGREE: ELECTRICAL ENGINEERING SUBJECT: AC CIRCUITS The line current of unbalanced delta connected…

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Q: Consider the network given in figure below where the numbers indicate admittances per unit. Find the…

A: To study the load flow analysis of the big network power system, Bus admittance matrix is used.…

Q: Q1/ the Line Vo ltages at the terminad of abalanced A connected Loadis E 120Lo Each Phase of the…

A: As we have given : VL=120∠0° VZ=6+j8 Ω/ϕ

Sinusoids And Phasors

Sinusoids are defined as the mathematical waveforms that are used to describe the nature of periodic oscillations.

Circuit Theory

Electric circuits are a network that comprises of a closed-loop, which helps in providing a return path for the current through a switch. When the switch is activated, the load operates, and the current accepts a path to finish the circuit at a low potential level from the opposing high potential level. Electric circuits theory is a linear analysis that helps in establishing a linear relation of voltage and current for R (resistance), L (inductance), and C (capacitance).