(13) For a certain polyphase induction motor, which at full load operates at its maximum power factor, the starting current and the no-load current at full voltage reduction in voltage which would just permit stable operation at a torque not exceeding the full-load value. What would be the power factor and slip at full-load Assuming the rotor and stator copper losses are equal, determine the percentage are in the ratio of 10/1 and the power factor in each case is 0:25. torque with the voltage thu

Q: If the speed of a DC motor is increased, what will happen to the back EMF and the current drawn by…

A:

Q: 2nd - What does induction loading mean?    a) friction load  B) load with effect  NS) loading…

A: Inductive loading means when load is inductor  Inductor takes current to produce work ( store…

Q: What are the rotating parts on d.c machine. * brushes inter-pole commutator segments O pole shoe

A: In dc machine field winding is statinary and armature winding is rotating.

Q: Permanent magnet moving coil (PMMC): Select one: a. a moving coil & a pair of permanent magnets used…

A: Need to find correct option for PMMV

Q: How the armature reaction works in a de generator.

A: When Armature current flow in the Armature conductor, it generates a additional Flux inside the…

Q: Aside from the Electromagnetic Induction, what other principle is use for the generation of emf in…

A: Alternator:- A machine that transforms mechanical energy into AC electrical energy is called an…

Q: SOLVE AND SHOW YOUR COMPLETE SOLUTION. ANSWERS SHOULD BE IN TWO DECIMAL PLACES. The armature of a…

A:

Q: Discuss the significance of the OCC curve in a self-excited KEYWORDS REQUIRED but not limited to:…

A: The curve that depicts the relationship between the field current (If) at a constant speed and the…

Q: 4. Explain the importance of residual voltage in a dc generator. Note: Figures and sketches are…

A:

Q: Figure Q1(c) shows a simple conveyor system used in industry to detect and count number of metal…

A: According to the question, for the given simple conveyor as shown below We need to explain the…

Q: Please write a short discussion for each number and explain.   1. Losses in a DC generator 2.…

A: Discussion about  1.Losses in a DC generator 2. Power stages in a DC generator 3. Efficiency of a DC…

Q: Wind turbines may be designed based on 'Up Wind' or 'Down Wind' principles. Explain these two…

A:

Q: Questions Magnetic Force 1. Use Fleming's Left Hand Rule to predict the direction of movement of the…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 1. The basic elements in any power system are 2. The reactors have the following problems 3. If a…

A: According to the Bartleby guidelines we are supposed to answer only 3 questions. Kindly repost the…

Q: Rotor of the electrical machine, having 8 poles, is turned on 360 electrical degrees. How much is…

A: The mechanical degree corresponding to the electrical degree of the electrical machine needs to be…

Q: DC machine with 2 poles, wave winded (retrogressive) (two layers) with 18 slots, the values of pole…

A:

Q: h a labelled diagram of any DC machine  Discuss it part

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

Q: e core loss

A:

Q: (15) Two identical 3-phase, 500-V induction machines are mechanically coupled for a back-to-back…

A: Given: Two identical 3-phase, 500-V induction machines are mechanically coupled for a back-to-back…

Q: What is advantage of commutator in DC machines? * Your answer

A: Let us try to understand the advantage of the commutator in a dc machine.

Q: Vhich of the following statements is correct: O a. The armature winding is the rotor in DC machines…

A: The explanation is as follows.

Q: Show the phasor diagram with the help of the equations you have created by drawing the exact…

A: Operation of Induction Machine:  When a three phase supply is given to the stator with frequency f,…

Q: (a) Draw and explain a typical power curve for a wind turbine and write the definition of the four…

A: The solution to both the problems is given below.

Q: 3. A 20-hp, 240V, four pole shunt DC motor operates at rated load and runs at 1700 rpm and…

A: Given Data: Pout = 20hp = 14.914 kW Rf = 120 ohm N = 1700 rpm n = 92%

Q: The brushes of DC machines are usually made of and are in the shape of rectangular block. Select…

A: Brushes of dc machine are made of corbon graphite .and these are in rectangular shape.

Q: prove the formula of generated voltage of dc machine

A: The derivation is as follows.

Q: 12. A long-shunt, compound generator delivers a load current of 50 A at 500 V and the resistances of…

A: We need to find out the current and voltage for given generator

Q: 3. The operation of a 3-phase induction motor is based upon the application of: (a) Faraday's law…

A:

Q: In a motor, increasing the gap between electromagnets and a rotor: Select one: decreases motor…

A: The question is asking about the effect of increasing the gap between the electromagnets and the…

Q: based on number 3 answer, what is the internally generated torque of the armature in N-m? (Answer in…

A: The internal torque generated in the armature is given by Td=PZ2πA·ϕ·Ia N-m.

Q: A 3-phase, 50 Hz, P=4 slip ring IM has a star connected rotor. The full load speed of the motor is…

A: By ohms law current in rotor  =( voltage across impedance)/rotor impedance . Power factor angle is…

Q: 9. The number of stator slots of an AC electric machine * O can be arbitrary chosen number O depends…

A: In this question we will write about number of stator slots....

Q: Each ferromagnetic material has a remanence in its magnetic characteristics, but they are not all…

A: Ferromagnetic materials are those which get spontaneously magnetize even in the absence of external…

Q: 5. In relation to a compound d.c machine, choose the right statement from the following.     (A) The…

A: The objective is to find the correct statements.

Q: SOLVE AND SHOW YOUR COMPLETE SOLUTION. ANSWERS SHOULD BE IN TWO DECIMAL PLACES.  The armature of a…

A:

Q: Write the types and shortly explain the magnetic losses for electrical machines

A: we need to explain the types and shortly explain the magnetic losses for electrical machines

Q: 1. Please explain the emergence and importance of air gap leakage inductance in different kinds of…

A: Importance of Air gap in electrical machines: An air gap is a non-magnetic piece of a magnetic…

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.