Explain how the real and reactive power is controlled in synchronous generators.

Q: Frequency of emf in the stator of a 8 pole induction motor is 50Hz and the rotor emf frequency is…

A:

Q: Describe how to adjust, the load sharing of two generators running in parallel.

A: Consider that the two generators have the same speed-torque characteristics and have the same load…

Q: In a workshop, there is a three-phase asynchronous motor with a power of 6 HP, an efficiency of 85%,…

A: Given dataOutput power, Efficiency, Initial power factor, Final power factor, To find outWe have to…

Q: In a DC motor the relation between the core loss (Pcore) and rotational loss (Protational) iS O…

A:

Q: We use stroboscope to calculate the torque of three- phase induction motor?* True False

A: Scroboscope is used to measure the speed of induction motor.

Q: Explain how two or more alternators can be synchronised

A: We need to explain how two or more alternators can be synchronised.

Q: 6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC…

A: 3 - phase induction motor  problems

Q: The following figure shows load characteristics of dc generator. Match the characteristic with the…

A: Given characteristics curve or load curve of DC generator,

Q: In the stator winding of a synchronous generator, the chording angle is for eliminating fifth…

A: Given, In the stator winding of a synchronous generator, the nth harmonic n = 5

Q: component is fabricated using cast iron in an Induction motor. Bearings Stator frame Rotor stator…

A: 3-Phase Induction Motor- 3-Phase induction machine- When three-phase stator displaced by 120' is…

Q: explain the working of induction generator with diagrams

A: If rotor of induction machine is driven at a speed greater than synchronous speed then rotor…

Q: Four compound generators operating in parallel supply a load of 1,000 A. The resistance of series…

A:

Q: component is usually fabricated out of silicon steel in an induction motor. Shaft Stator core…

A: This shaft is made up of steel and no fabrication.

Q: For 50 Hz system the maximum speed of a synchronous generator can be

A: Given data, Frequency f = 50 Hz. For maximum speed number of poles P = 2.

Q: The number of poles in the rotor circuit of a 3-phase induction motor is O Always two. Zero, because…

A:

Q: In 3 phase induction motor the greater number of poles give. speed high O Medium O Low

A: In this question we will write induction motor poles and speed relation...

Q: Generators using salient pole structure rotors are called turbo-alternators. Select one: O True O…

A: The explanation is as follows.

Q: In a two-pole synchronous generator, the voltage positive peak... a) Is half the negative peak b)…

A: you know by Faraday law of induction e =-Ndϕdt so when value of change in flux is maximum the…

Q: I need short presentation about reverse the direction of rotation of three-phase squirrel cage…

A: According to the question we have to explain about reverse the direction of rotation of three-phase…

Q: Permanent-split capacitor motor is in effect a 2-phase motor and at no load could attain the…

A: True and false?  Permanent-split capacitor motor is in effect a 2-phase motor and at no load could…

Q: Discuss two advantages and disadvantages of a coubly-fed induction generato DFIG) over a squirrel…

A: Types of generator used in Wind power plant Doubly fed induction generator ( seperete excitation is…

Q: Comment briefly on the relationship between input and output power at varying excitation levels and…

A: Infinite Bus Bar is the bus bar where many(infinite)  synchronous machines are connected.  The…

Q: The synchronous speed for 60 Hz induction motor can be equal to 3000 RPM. O True O False

A: An induction motor is a self starting motor and it doesn't run at the synchronous speed

Q: Which of the following NEMA design classes of Induction motor has double-cage rotor? Both Class-D…

A: Class C

Q: QII. Permanent-split capacitor motor is in effect a 2-phase motor and at no load could attain the…

A: PERMANENT SPLIT CAPACITOR MOTOR:- also known as Single valued Capacitor motor.this type of motor…

Q: If a 4-pole induction motor has a synchro- nous speed of 1500 rp.m., then, supply fre- quency is (1)…

A: Given, An induction motor with, Number of poles, P=4 Synchronous speed, Ns=1500 rpm

Q: Why brushless exciters are used in a synchronous generators. If two parallel alternators’ have…

A: The brushes are one of the important component of any machine. For the generators it is used to…

Q: Differential compound generator has better voltage regulation than that whe it is shunt connected. O…

A: A cumulative compound-wound generator is one in which the series winding is connected to assist the…

Q: A shunt generator has a full-load current of 44A at 150V. The stray losses are 625W and the shunt…

A: Given:Full load current Stray losses Shunt field resistance To determine:Input power Armature…

Q: Name the four types of compound connections for dc generators.

A: In compound DC generator, the two physical connections between the field winding and shunt winding…

Q: List 3 differences between how 3 phase induction motors and single phase induction motors work

A: Induction motor is a widely used machine in the industry and for commercial purposes. based on the…

Q: 13 A three-phase induction motor has a mechanical speed of 720 [rpm] and at full load has a slip of…

A: Given: A three phase induction motor has, Mechanical or rotor speed, Nr=720 rpm. Slip, s = 5 % =…

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.