Effect of frequency - stepper motor , Electrical Engineering

Assignment Help:

Effect of Frequency

a.From equation for given  H p and μ

P v α √f

b.From  equation the depth of penetration for a given  material

δ α 1/ √f

c.From  equation hysteresis losses

Wh α f

d.For a  greater thermal conductivity of the material the frequency requirement will be  high  whereas for a greater resistivity of the material requirement of frequency will be  less.

e.The flux density in ferromagnetic material will be  higher  than that in nine magnetic material hence in ferromagnetic material  less  frequency is required to produce  same amount  of heat.

 


Related Discussions:- Effect of frequency - stepper motor

Calculate the speed of motor when armature current is 25 a, Q. The magnetiz...

Q. The magnetization curve taken at 1000 r/min on a 200-V dc series motor has the following data: Field current, A: 5 10 15 20 25 30 Voltage, A: 80 160 202 222 236 244 Th

Define embedded system according to wayne wolf and todd, Define the term em...

Define the term embedded system according to Wayne Wolf and Todd. According to Wayne Wolf: This is any device which includes a programmable computer but is not itself intend

Karnaugh map, how can be a karnaugh map of the count of sequence: 0-5-6-9-1...

how can be a karnaugh map of the count of sequence: 0-5-6-9-11-14

Energy band diagram, Sketch the Fermi-Dirac distribution function, F(E), al...

Sketch the Fermi-Dirac distribution function, F(E), alongside the energy band diagram for an n-type semiconductor, indicating the position of the Fermi level, EF, and the donor lev

Explain the block diagrtam of d.c. voltmeter , Q.   Explain the block diagr...

Q.   Explain the block diagrtam of D.C. voltmeter with direct coupled amplifier. Sol. D.C, voltmeter with direct coupled Amplifier         The D.C. electronic voltmeters

Intrinsic semiconductor, Draw a graph illustrating how resistivity varies w...

Draw a graph illustrating how resistivity varies with temperature for an intrinsic semiconductor. b) Gallium nitride, GaN, has an energy gap of 3.36 eV at 300 K. Calculate the w

Find the corresponding energy, Q. Consider a pair of coupled coils as shown...

Q. Consider a pair of coupled coils as shown in Figure of the text, with currents, voltages, and polarity dots as indicated. Show that the mutual inductance is L 12 = L 21 = M by

Commercial losses in electrical systems, Commercial Losses in Electrical Sy...

Commercial Losses in Electrical Systems Commercial losses are caused by pilferage, theft, defective meters, and errors in meter reading and in estimating un-metered supply of

Laplace transform, 1. Find the general solution y(t) of the ordinary di ere...

1. Find the general solution y(t) of the ordinary di erential equation where ω is a non-negative constant. (Consider the ω = 0 and ω > 0 cases separately). 2. Use Laplac

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