6. The power input to the d-e field of a 15-kva (input) synchronous motor is 6 per cent of the rated a-c input. What is the direct current that excites the field at 120 volts?

Q: Calculate the voltage across the capacitor v(t) and current through the inductor i(t) fo t>0 for the…

A:

Q: A battery consists of four cells connected in parallel, each having an emf of 24 volts and…

A: Current in each battery calculated by using nodal analysis

Q: 3. What inductance must be connected in parallel with a 30H inductance to inductance of 12 H? get an…

A:

Q: Question 1: Q1- For the sinusoidal waveform in Fig. 1: a. What is the peak value? b. What is the…

A: As per guidelines given to us we can only provide the solution of first three subpart in multi part…

Q: How does the functionality of integrated circuits compare to that of discrete ones?

A: Integrated circuit:- Integrated circuit (IC) is collection of electronic circuits in chip. It also…

Q: Fuente a Párrafo 30 N:N espa... Título 1 Título 2 Estilos 7c Za Puesto Subtitulo Enfa Zb

A:

Q: 2. The Illogic Company has developed a new logic family which has the following characteristics: VOH…

A: A group of logic circuits built with power supply and compatible logic levels known as a Logic…

Q: A battery consists of four cells connected in parallel, each having an emf of 24 volts and…

A: Given circuit,

Q: Explain the working of fluorescent tube with the help of circuit diagram giving the function of…

A: Fluorescent Tube It is gas-discharge mercury-vapor low-pressure lamp that utilizes fluorescence to…

Q: What is meant by the wye connection? How many wires are necessary? When are 4 wires used?

A: Neutral point of all the phases in wye connection connected at common point There is no neutral…

Q: What are the equivalent ac circuit models of an ideal DC voltage and current  source?

A: We need to tell about the behaviour of DC source in ac equivalent circuit

Q: 8.28. Draw a signal flow graph for the electrical network in Fig. 8-73. Current Source R₁ Input…

A: Steps to analyze the transfer function  Apply KCL at two both nodes VA and V3 Find I1 interms VA…

Q: a) The n-channel JFET and the D-MOSFET have very similar I-V output characteristics. Which of these…

A: 3.  a. n channel JFET is an enhancement mode. Unlike MOSFET, JFET has a pre-made channel that can…

Q: A SUBSTATION RATED 1250 KVA IS OPERATING AT FULL LOAD AT 0.8 PF LAGGING AND TO CARRY AN ADDITIONAL…

A: Methods to improve power factor Adding shunt Capacitor Phase advancer Synchronous condenser ( Motor…

Q: ASAP please recheck the answers, I will like.  Using Kirchhoff’s Law, determine the following: a.…

A: Brief description: For the above given question we need to calculate the value of all the current…

Q: A Watt (W) is defined as one Joule (J) of energy per second (s): 1 W = 1 J/s. It is also possible to…

A: Given, An electric car has 75 kWh battery. The car consumes on average 230 Wh/mile .

Q: A three-phase two winding transformer is rated 1200MVA, 24/345kV 50Hz. It has a leakage reactance of…

A: PU Kva = Actual KVA / Base KVA PU Voltage = Actual Voltage/ Base voltage  In star connection,  N1/N2…

Q: For the circuit shown in the figure, the Mesh Equation for (mesh#3) is: 492 www 10V 8V 4V 402 ww €…

A:

Q: A dc series motor drives a load a 30revs and takes a current of 10A when the supply voltage is 400V.…

A:

Q: B2 Derive the Thevenin equivalent circuit for the given network. a) R1 R3 200 .Ω 5002 R Load E 24 V…

A:

Q: Q1: A three-phase balanced source voltages, operating with a 380 -V line voltage as shown in Fig. 1.…

A:

Q: are specifications of Digital modulation techniques?

A: Digital Modulation Techniques. It  is the kind of  process in which encode a digital information…

Q: Q1: Assume that V is a function of y and at y =2, V=5 volt and at y = 4, V = 10 volt. a) Find V, E,…

A: Given:         Here we assume that V is the function of y.When y=2,V is varies as V=5 voltsand when…

Q: In the circuit shown below power factor is

A:

Q: Sketch the figure and explain in detail about the HVDC circuit breakers

A: Given: The objective is to give an explanation about the HVDC circuit breaker with the figure

Q: electrolysis, there are 2 tanks connected in series where the current that flows is 5000 A. Each…

A:

Q: The shaft torque of a diesel motor driving a 100V dc shunt-wound generator is 25Nm. The armature…

A:

Q: Sketch vo for the network and determine the dc voltage available. 100 V Si Ge 4.7 ΚΩ • 2.2 ΚΩ 2.2 ΚΩ…

A: Brief description: For the given question we need to calculate dc voltage and output voltage…

Q: The input voltage of a Boost converter is 10V, the duty cycle of the boost converter is 0.25. What…

A: Brief description: For the above given question we need to calculate the value of output voltage of…

Q: duce the block diagram and obtain its closed-loop transfer function R(s) G₁ H₂ G₂ G3 G4 H₂ C(s)

A:

Q: A series motor has an armature resistance of 0.2 ohms and a series field resistance of 0.3 ohms. It…

A:

Q: 1. How do you change the phase sequence of the three-phase source?

A: In a three phase power system the order in which the voltages attain their maximum positive value is…

Q: +V₂ BB RB Rc [+Vcc

A:

Q: Referring to Figure 9.3, if the generator phase voltage is 400 volts and the load is balanced with…

A: A three-phase AC generator generates three-phase AC electricity by encircling the rotor with extra…

Q: You are given an equation: 100 cos[(2π×10^5t) + 35 cos(100πt)]. From this expression, Determine the:…

A: Given,The equation is,xt=100cos2π×105t+35cos100πt

Q: Topic: Amplitude Modulation and Demodulation: please answer this question thanks. 1. What are the…

A: Brief description: Envelope detector is a demodulator circuit which is used to demodulate amplitude…

Q: Problem 3: For 3-bit multiplier given in Figure 3, if A: a2a1a0 = 010 and B:=b2bibo = 010, what is…

A:

Q: 1. The magnitude of various voltage drops that occur in an altemator, depends on...... load current…

A: In this question, we have to do fill in blanks,   (1) The magnitude of various voltage drops that…

Q: A series motor has an armature resistance of 0.20 and a series field resistance of 0.302. It is…

A:

Q: 2. Determine the nominal resistance values of these resistors, given their band colors, and also…

A: Brief description: By the help of concept of colour coding of the resistor we need to derive the…

Q: 2. Solve for I for the circuit shown in Figure 2. 0.4.គ -N V -j0.8 ព ↓1 16/45°v ខ្ទី... | Figure 2…

A:

Q: Draw mechanical equivalent Electrical system for the following mechanical translational system using…

A: Given mechanical translational system with masses M1 and M2 along with a force input P on mass M1.…

Q: A: For 30 km fiber length with attenuation 0.8 dB/km at 1300nm wavelength. If 200μ W is lunched into…

A:

Q: 2) A system has transfer function: Y(s) 50 R(s) S+50 Find the time constant, T, the settling time,…

A: In this question we will find time constant , settling time , rise time....

Q: b) What are the equivalent ac circuit models of an ideal DC voltage and current source?

A: We need to tell about the ac equivalent circuit for DC sources

Q: It melts whenever there is too much current in the circuit. A. Load B. Switch C. Protection…

A: 1. In electronics & electrical engineering, the fuse is a low-resistance resistor that works as…

Q: What is the importance of a full-wave bridge type power supply and its advantages and disadvantages?

A: Full bridge rectifiers are a type of bridge rectifier that may be used to power a wide range of…

Q: Determine the following for the network shown below: Use Mathematical Approach a. ID b. VGS c. VDS…

A:

Q: Q1) A charge of (6 C) is to be moved from B (1, 8,5) to A (2, 18, 6) in an electrostatic field E=…

A: The force is observed by charge when it is placed in electric field. Static electric field not…

Q: From the curves above find: the stall torque ?? in mN-m, the no-load speed ?max in rpm and the…

A: From given data, we have to find   i)  stall torque  in mN-m ii) the no-load speed max in rpm iii)…

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.