Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Derive the expression for generated emf in a dc generator.
Ans.
Expression for Generated emf in a DC Generator
We shall now derive an expression for the emf generated in a d.c. generator.
Let Φ = flux/pole in Wb
Z = total no. of armature conductors
P = no. of poles
A = no. of parallel paths = 2......for wave winding
= P....for lap winding
N = speed of armature in r.p.m.
Eg = e.m.f. of the generator = e.m.f./parallel path
Flux cut by one conductor in one revolution of the armature, dΦ = pΦ webers
Time taken to complete one revolution,
dt = 60/n sec.
e.m.f. generated/conductor dΦ/dt = PΦ/60/N = PΦN/60 volts
e.m.f. generator, Eg = e.m.f. per parallel path
= (e.m.f/conductor) × No. of conductor in series per parallel path
= PΦN/60 × Z/A
Eg = PΦZN/60A
A = Z...for wave winding
Explain Memory Mapped I/O Scheme. Memory Mapped I/O Scheme: In this scheme there is only one address space. Address space is explained as all possible addresses which microproc
A three-phase, six-pole, wye-connected synchronous generator is rated at 550 V and has a synchronous reactance Xs = 2 . When the generator supplies 50 kVA at rated voltage and a p
Explain the AND GATES - Microprocessor? The AND GATE has a logic 1 or high output if the entire inputs are high. The boolean and symbol expression for a 3-input AND gate is sho
Give the applications of carbon. Carbon : These materials used in the field of electrical engineering are manufactured from graphite and the other forms carbon as coal and so
1. Introduction : Theory: Phase angle is defined as the number of degrees separating two sine waves of the same frequency. The Phase shift is defined as any change t
commutator in d.c machine acts as... what????
report on diode
Q. Process of Amplitude Modulation? In AM the message signal is impressed on the amplitude of the carrier signal. There are several different ways of amplitude modulating the c
Q. Addition and integration can be combined by the summing integrator circuit shown in Figure. With the given component values and input waveforms, sketch v o when S is opened at
give easy way to leran circuit analysis
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd