Calculate the generator emf , Electrical Engineering

Assignment Help:

Q. The armature of 6 -pole dc generator has a wave winding containing 664 conductors. Calculate the generator emf when flux per pole is 0.06 weber and the speed is 250 rpm. At what speed must the armature be driven to generator an emf of 250 V. If the flux per pole is reduced to 0.058 weber.

  Sol.  Given P = 6; A = 2 (as wave wound); Z = 664    Φ = 0.06,       N = 250 rpm

 

           Thus    Eg = PΦZN/60A = 6/2 × 0.06 × 664 × 250/60 = 498V

 

           Now , given Eg = 250 V; Φ = o.o58 weber

 

            Then            N = ?

 

            Thus              Eg1/Eg2 = Φ1/ Φ2 × N1/N2

 

             Or               498/250 = 0.06/0.058 × 250/N2

 

              Or           N2 = 130 rpm


Related Discussions:- Calculate the generator emf

Determine the voltage in given circuit, Q. In the circuit shown in Figure w...

Q. In the circuit shown in Figure with an ideal op amp, find v o as a function of v a and v b .

Define wireless communications, Q. Define wireless communications? The ...

Q. Define wireless communications? The latest wireless communications technology is the personal satellite phone. The coverage is planetary and one can reach anywhere on earth.

Analog-to-digital converters, Analog-to-Digital (A/D) Converters An A/D...

Analog-to-Digital (A/D) Converters An A/D converter converts analog input signals into digital output data in many areas such as process control, aircraft control, and telemetr

For the low-pass filter configuration calculate cf, Q. For the low-pass fil...

Q. For the low-pass filter configuration of Figure, with R i = R f = 1M, calculate C f such that the 3-dB point is at 1 kHz.

Amplifier and active filter design, Amplifier and Active Filter Design Usin...

Amplifier and Active Filter Design Using Operational Amplifier 1) The purpose of this assignment is to train you to do some simple circuit design using op-amp. The circuit tha

Transmission and distribution, A three-phase transposed line is composed of...

A three-phase transposed line is composed of one conductor per phase with flat horizontal spacing of 11 m as shown in Figure 1(a). The conductors have a diameter of 3.625 cm and a

Define gain and phase responses, Define Gain and Phase Responses? Expre...

Define Gain and Phase Responses? Expressing H(e j? ) in polar form as:   H (e j? ) = G (?) e jφ(?) G(?) is the "gain" of the discrete-time system and  φ(?) is the "phas

What is difference between voltage and potential, Voltage is referred as Po...

Voltage is referred as Potential difference among two points. Potential means its force. I think so.voltage defination is 100% correct.

OC AND SC TEST OF AN ALTERNATOR, WRITE THE PROCEDURE CONDUCT OC AND SC TEST...

WRITE THE PROCEDURE CONDUCT OC AND SC TEST OF AN ALTERNATOR TO FIND SYNCHRONOUS IMPEDENCE

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