Inductive reactance, resistance, and impedance are always present in circuit serving motors. Which of the three actually determines the required conductor size?

Q: In plugging type of braking system of DC motor, the current in the series and shunt fields must not…

A: Plugging is called as reverse current braking. During this the voltage becomes double than the…

Q: Part 1:- SYNCHRONOUS GENERATOR 1. List the types of synchronous generators. 2. Explain the working…

A: In this question we will write about synchronous generator types, working principle of synchronous…

Q: 20. What is the probable reason if sparking does not disappear in any position when brushes are…

A: The main function of vrush in dc generater is to produce electric current it produces electric…

Q: How will the load current affect the speed except its effected on la,Ra drop?

A: This question is from "Electrical Machine". Under which we are going to establish the relationship…

Q: 6. How will the load current affect the speed except its effected on Ia Ra drop?

A: A self-excited DC shunt motor, also known as a shunt wound DC motor, is a form of self-excited DC…

Q: Which of the following factor is responsible for negative voltage regulation of a DC generator?…

A: Voltage Regulation :- It is defined as the ratio of change in full-load voltage from no-load voltage…

Q: Is the parallel operation of shunt generators stable if their characteristics are not identical?…

A: Parallel operation of DC generators is required to meet the extra load demand. It is always…

Q: 6. How will the load current affect the speed except its effected on la Ra drop?

A: how will the load current affect the speed except its affected on Ia Ra drop

Q: 3-phase, 440V, 60HZ, star connected SM has a synchronous reactance of 2.32 and negligible armature…

A:

Q: A 230VAC rated, 60 Hz, 10-Hp Single-phase AC motor is to be connected for across-the-line starting.…

A: Steps With 20 % overloading, calculate line currents  Choose range from wire selection table Take a…

Q: Comment about effect of decrease stator voltage on three phase induction motor speed

A: Basically, stator voltage control method which  is used to control the speed of an induction motor…

Q: What is the reason for drop in Generator’s Terminal voltage, from No load to Full load?

A: In a DC shunt generator, decline in terminal voltage with expansion in load happens because of…

Q: . Should the brushes of a loaded generator be placed in the neutral plane ? (DC GENERATOR QUESTION)

A: No .

Q: What is meant by induction heating of metal raceways and how can you prevent it?

A: The induction heating of metal raceways is as follows: - Induction heating is the way toward warming…

Q: The field current of d.c shunt generator is not affected by load current.(True or False) 2-By…

A: In this answer let us try to understand the concept of a dc shunt machine and also it's field…

Q: Which of the following factor is responsible for negative voltage regulation of a DC generator?…

A: In DC  under compound generator, the series winding under compensates the shunt field, the output…

Q: nd inverse-time circuitbreaker rating for a circui

A: Circuit breaker When there is fault then the switching device for interrupting the abnormal current…

Q: Why the power factor of three-phase induction motor low at no-load and increase as applied load…

A: Power factor is define the cosine of power factor angle.  So Why the power factor of three-phase…

Q: hematic diagram for No - load test on three phase induction motor. Which loss in the machine is…

A: No Load Test: We can find core losses by conducting no-load test. As core losses depends on Voltage…

Q: Draw and explain a complete equivalent circuit of single phase induction motor

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Q: Identify the reverse power flow relay, from the given symbol, Ob. d. く

A:

Q: Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring…

A: Answer

Q: A 6 pole wave wound shunt generator delivers 200A at a terminal voltage of 240V. Ra and Rsh are…

A: Armature current =load current +shunt field current.  Current per parallel path = total armature…

Q: Question 3:Does the generator voltage increase withe the excitation current? Explian,

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

Q: 4. A three phase, 60HZ, 20 MVA, 12 kV, 8 pole Y-connected synchronous generator has per phase…

A: Synchronous generator always runs at synchronous speed and given by 120×fp where f is the frequency…

Q: Why does an alternator's voltage drop sharply when loaded down with a lagging load

A: The solution is provided in the following section:

Q: The synchronous reactance of a generator is 1.0 per unit, and the leakage reactance of its armature…

A:

Q: For what purpose is the short circuit test performed in asynchronous motor? Please explain.

A: Need to explain about short circuit test in asynchronous motor

Q: . What are the factors that affect the slope overload phenomena?

A: In delta modulation, the slope overload phenomena arise. The analog data are sampled at a rate…

Q: what should be the transition time from Star connection to Triangle connection, explain the change…

A: The star to delta starters is used commonly for the machines having high inertial mass such as…

Q: power syste unit quantities instead of actual values. Give the advantages of using such a system.…

A: (a) Advantages Of Per-unit System- It gives a clear idea of relative magnitudes of various…

Q: The open circuit line voltage and short circuit line current of a 150 kVA, 480-VL, 50 Hz, delta-…

A:

Q: A 100KVA, 6.6 kV 3 PHASE star connected cylindrical pole synchronous generator has 20-ohm as…

A: KVA = 3VLIL 100×1033×6.6×103=IL IL=8.747 A

Q: The armature resistance and synchronous reactance of a 2 MVA, 11 KV, 3-phase star connected…

A:

Q: The condition for maximum efficiency of DC generator is given by - Choose

A:

Q: 1. What is the difference between circle diagram method and equivalent circuit method in calculating…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: State if the statement is true or false. Over-powering results in high overhead charges,…

A: State if the statement is true or false. Overpowering results in high overhead charges, inefficient…

Q: 12:  What are the most commonly used starting systems used in diesel power plants? Explain them…

A: (12) The initial spinning of an engine's crankshaft is necessary to start the diesel engine. Until…

Q: Example 5-1 A 200KVA, 480V, 50HZ, Y-connected synchronous generator with a rated field current of 5A…

A:

Q: Explain how active load and reactive load sharing is achieved between synchronously connected…

A: Load sharing: Load sharing is the dividing the total load(i.e. Kw and Kvar) in proportion to the…

Q: Discuss the reason why the generator terminal voltage varies with the electrical load?

A:

Q: Define Infinite Bus, damping torque, synchronous torque, power oscillation in a Power System,?

A: Infinite Bus:                In the power system, a bus with fixed voltage and frequency is called…

Q: number of turns per phase?  alternator induced voltage is?  armature winding distrbution factor?…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 3- Draw the circuit diagram of static excitation system for synchr generator?

A: Excitation system is essential for the operation of synchronous generators since they provide the…

Q: What is the reason for drop in Generator’s Terminal voltage, from No load to Full load?

A:

Q: A 60-MVA, 69.3 kV, 3-phase synchronous generator has a synchronous reactance  of 15 Ω per phase and…

A:

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.