In the circuit of Fig. 11.40, determine the average power absorbed by the 40-Ω resistor.

Q: 11.51 For the entire circuit in Fig. 11.70, calculate: (c) the reactive power (d) the apparent power…

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Q: Consider an electric motor that requires a 120 V rms power source and a current of 1.5 A rms. If the…

A: Given an electric motor that requires a, Source voltage, Vrms=120 V Current, Irms=1.5 A The…

Q: Maximum Average Power Transfer Practice Problem 11.6 In Fig. 11.12, the resistor R₁ is adjusted…

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Q: 1. A relay coil is connected to a 210-V, 50-Hz supply. If it has a resistance of 30 2 and an…

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Q: A 540 V, 50 Hz, 3-phase circuit takes 47 A at a lagging power factor of 0.87. A synchronous motor is…

A: In this question,  Find the Volt-ampere rating of the synchronous motor.  If it's supplied the power…

Q: Problem 11.34. At full load, a commercially available 106 hp, three-phase induction motor operates…

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Q: 01- t K h e num, 11.85 A regular household system of a single-phase three- wire circuit allows the…

A: In this questionsWe need to determine the unknown currents as shown the circuit and also determine…

Q: Determine the rms value for the waveform in Fig. 11.64. i(t) 5 0 1 2 3 4 5 6 7 8 9 10 t

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Q: The maximum instantaneous voltage and current output of an alternator are 300 V and 20 A,…

A: r

Q: Example 11.57. If the effective value of the voltage of a complex waveform is 130 V, determine the…

A: Given, Effective (rms) value of voltage, V=130 V. RMS value of harmonic content, Vh=0.20×130=26 V.…

Q: IW22 Obtain the complex power delivered to the 10-kſ2 resistor in Fig. 11.77 below. 500 2 L -j3 kQ…

A: In this question , we will find power delivered in 10 kilo ohm resistor..

Q: Determine the voltage V, in the circuit of Fig. 13.10. 1 Ω 200/45° V 4Ω Μ 1₁ j8 Ω m j5 Ω (1, 10 Ω

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Q: Assignment #2: For the following circuit, if the voltage source is (10sin 60t V), find the average…

A: ELECTRICAL NETWORK: When addressing a circuit problem or constructing a balanced circuit, the word…

Q: A plant has a load of 290 kilowatt with an average power factor of 70 % lagging. The owner request…

A: The solution is given below

Q: 11.35 Determine the complex power for the following cases: (a) P = 269 W, Q = 150 VAR (capacitive)…

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Q: If the apparent power of an ac circuit is 178.94 kVA, then the magnitude of the active power at 0.92…

A: Apparent power S = 178.94 KVA Power factor = 0.92 Active power P = ?

Q: 194 /3° V E -j1.5N j2.8 N ll

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Q: Q1. A 550-V is supplied to a plant comprising of a parallel-connected induction motor drawing 75 kW…

A: NOTE: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: If the apparent power of an ac circuit is 220.35 kVA, then the magnitude of the active power at 0.92…

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Q: With regard to the two-mesh circuit here, determine the average power absorbed by each passive…

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Q: If the apparent power of an ac circuit is 191.05 kVA, then the magnitude of the active power at 0.91…

A: In this we will find active power..

Q: Fig. 11.1 shows a circuit that switches on a warning lamp when the temperature in an oven falls…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: 4. Three transformers each rated 100KVA, supplies it rated value to a load having a pf of 0.8…

A: KVA rating of the transformer is given asS3ϕ=3×100kVAS3ϕ=300kVALoad 1Since load 1 is operated on…

Q: Calculate the rms value of the current waveform of Fig. 11.58. mm. i(t) 5 5 10 15 20 25 t

A: If i(t) is the current then current expression than RMS value is…

Q: The maximum instantaneous voltage and current outputs of an alternator are 300v and 20A,…

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Q: 44. Calculate the average power delivered to each resistor shown in Fig. 13.66. 50 Ω 38 Ω 1:9 1:4 5…

A: In this question we need to find a average power absorbed by each resistance in the given circuit.

Q: The power input to a synchronous motor is measured by two wattmeters both of whic √√3 indicate 50…

A: Given that both wattmeter power =50kW power factor 32=0.866 leading. The vector diagram can be drawn…

Q: Q1/ For the voltage waveform shown in Fig. 1, calculate: (a) The peak-to-peak value; (b) The cycles…

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Q: 1200kVA, 6600V, 3phase, Y-connected alternator has an effective resistance of 0.4Ω and a reactance…

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Q: Gas and thermal combined cycle power plant generates total power output equal to 212 MW in 208 mw…

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Q: A fesistance of 5.02 has a current i = 5.0 x 10°1(A)in the interval 0 > 1> 2 ms. Obtain the…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: EXAMPLE 11.7 Switch S, in Fig. 11.51 has been closed for a long time. At 1 = 0 s, S, is opened at…

A: Inductors and capacitors are energy storing elements. Inductor prevent the change in current. It…

Q: A 1000 KVA, 400V three-phase electrical plant operates at a power factor of 0.6 lagging. It is…

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Q: Please answer in typing format

A: Step 1:By applying mesh analysis,.Mesh analysis is the combination of KVL and Ohm's law. KVL states…

Q: A 150 HP three-phase motor operates at 13.8 kV with a power factor of 0.8 lagging. The magnitude of…

A: We need to find out magnitude of current for given Power and voltage .

Q: Q₂0 For the value wave input. vin +3V circuit operational amplifier shown in fig. 11.62, determine…

A: The given Circuit is a practical integrator which means output is integral of its input.

Q: A 2-pole, 50 Hz, 11 kV 100 MW alternator has a moment of inertia of 10,000 kg.m². The value of…

A: Given, An alternator has Number of pole, P = 2 Frequency, f = 50 Hz Power rating, S = 100 MW Moment…

Q: thermistor warning lamp R Fig. 11.1 Explain, with reference to the components in the circuit and…

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Q: None

A: The circuit in Fig 11.91 consists of an inductor (L)  with a resistance of 5 H, a resistor (R) with…

Q: 1. The load on a 120-V, 60 Hz supply is 5KW (resistive), 8 KVAR (inductive), and 2 KVAR…

A: Given:V=120VKVAR=j8-j6KW=5

Q: A 3-phase, 7 kW induction motor has a p.f. of 0.7 lagging. A bank of capacitors is connected in…

A: We have an 3-Phase induction motor, Motor Input , (p) = 7 KW Power Factor (Cos ϕ1) = 0.7 lag raised…

Q: 11.85 A regular household system of a single-phase three- wire circuit allows the operation of both…

A: The household circuit model is shown below,

Q: 4) A three-phase air-conditioning unit which has 4 kW working power and PF of 0.85 draws 13.06 A.…

A: Note: As per the policy we’ll answer the first question since the exact one wasn’t specified. Please…

Q: For a certain alternating current, i(t), [A] i = 2 ⋅ sin (500 π ⋅ t + ) π, where the time is in…

A: The objective of the question is to determine the peak value, rms value, period, and frequency of…

Q: O A Library office is fitted with four units of 20W Compact Fluorescent Lamp (CFL) downlights and…

A: First calculate active and reactive powers of the individual loads.  Total active power is sum of…

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.