alternator cor

Q: Harmonic Frequency 50 Hz 250 Hz 350 Hz 450 Hz Current Amplitude 5A 2.1 A 1.5 A 0.8 A The current…

A: Given,

Q: An inductive load consumes 10 kW at 0.75 pf lagging. A synchronous motor with a pf of 0.95 leading…

A: The active and reactive power requirement of inductive load is given as:…

Q: An inductor and a resistor are connected in series with a function generator. The voltage across the…

A: In series circuit of resistor and inductor, the expression for magnitude of RMS voltage supplied…

Q: For a given circuit element, the average power P is 1 and the reactive power Q is 0, then the…

A: Given:For an element,Average power, , Reactive power, we need to find:Instantaneous power S at .

Q: The frequency of alternating current is the number of complete cycles that occur in a minute. Select…

A: for the case of alternating current the frequency is the number of complete cycle that occur in one…

Q: A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is.

A: Given a step up chopper with, Input voltage, Vin=110 V. Output voltage, Vout=150 V. Duty cycle, α=?

Q: If the alternator winding has a fractional pitch of 4/5, the pitch factor kp is?

A:

Q: What is the advantage of a diverter across the series field in compound generator

A: The degree of compounding of a generator may be adjusted by placing a suitable low-resistance,…

Q: An RMS voltage of 150 V is measured with a Digital Volt Meter. What is the peak voltage?

A:

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.