Find the new synchronous speed, Electrical Engineering

Assignment Help:

Q. A wye-connected, three-phase, 50-Hz, six-pole synchronous alternator develops a voltage of 1000 V rms between the lines when the rotor dc field current is 3A. If this alternator is to generate 60-Hz voltages, find the new synchronous speed, and calculate the new terminal voltage for the same field current.


Related Discussions:- Find the new synchronous speed

The b-h curve for ferromagnetic materials, Ferromagnetic materials have som...

Ferromagnetic materials have some 'residual magnetism' even when the current (proportional to H) is zero. Material with strong residual magnetism are useful for making permanent ma

Air gaps, What is the main thing to look for in calculations of air gaps?

What is the main thing to look for in calculations of air gaps?

Determine the thevenin resistance, Q. Determine the Thevenin resistance vie...

Q. Determine the Thevenin resistance viewed from terminals A-B of the circuit of Figure by setting independent sources to be zero and applying a test voltage at terminals A-B.

Transfer function, derive transfer function of S= 2.25+j4.5

derive transfer function of S= 2.25+j4.5

Determine the maximum value of the voltage induced in coil, Q. A 10-turn sq...

Q. A 10-turn square coil of side 200 mm is mounted on a cylinder 200 mm in diameter. If the cylinder rotates at 1800 r/min in a uniform 1.2-T field, determine the maximum value of

Followings are some disadvantage , Followings  are some  disadvantage ...

Followings  are some  disadvantage a.   Higher latching and holding  current b.Higher  on state  voltage  drop and power  losses c.Higher  gate  current d.Higher  gat

What is current gain in rc coupled amplifier, Q. What is current gain  in R...

Q. What is current gain  in RC coupled amplifier? Current gain is the ratio of the output current to the input current. we represent it as A i . A i =I o /I s it can

Determine the efficiency, Q. (a) Consider a three-phase star or wye half-wa...

Q. (a) Consider a three-phase star or wye half-wave recti?er with a purely resistive load R. Determine: (i) efficiency, (ii) formfactor, (iii) ripple factor, (iv) TUF, and (v) PIV

Impedance / DUTT, 3) The impedance for a 120 km, 230-kV line is given as j ...

3) The impedance for a 120 km, 230-kV line is given as j 0.9 ohm/km and j 0.6 ohm/km for self and mutual terms respectively; resistance is neglected. The mho characteristic for the

Electric machinery fundamentals, Ask qu1. If the resistor Radj is adjusted ...

Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd