Example numerical of dc generator., Electrical Engineering

Assignment Help:

Q. An 8 - pole dc generator has 500 armature conductors and has a useful flux per pole of 0.065 web. What will be the emf generated if it is lap connected and runs at 1000 r.p.m.  What must be the speed at which it is to be driven to produce the same emf if it is wave wound?  

Ans.

E1   = N1PΦZ/60A = 10000 × 0.065 ×500 ×  P/A

               For lap connection A = P

 

                       E1  =  10000 × 0.065 ×500 /60 = 541.67 volts

 

                       E2  = N28ΦZ/60 × 2

 

 Since                  E2  = E1

 

                             8N2ΦZ/60 × 2 = 8N1ΦZ/60 × 8

 

                       N2 = N1 × 2/8 = 1000 × 2/8 = 250 rpm


Related Discussions:- Example numerical of dc generator.

Explain pnp transistor circuit, Explain pnp transistor circuit . pnp tr...

Explain pnp transistor circuit . pnp transistor: A transistor consist of  three terminals. In this pnp transistor there is two blocks of p- type semiconductors that are separa

Embedded system, comment instruction for LIST p=18f4550

comment instruction for LIST p=18f4550

Explain dielectric constant, Write short note on dielectric constant. A...

Write short note on dielectric constant. All insulation material has the capacity to store charge while placed in among two conducting plates as in capacitors. Dielectric const

Phantom or fictitious loading method, Phantom or Fictitious Loading Method ...

Phantom or Fictitious Loading Method While the capacity of meters under test is extremely high, testing with actual load method would includes a considerable loss of power and

Microcontroller, Project Garage door opener with password. Wrong password ...

Project Garage door opener with password. Wrong password "door close" on lcd screen, correct password "door open" on lcd Screen no need the motor. Material used - Microcontroller

Breifly explain abrasive jet machining, Breifly explain abrasive jet machin...

Breifly explain abrasive jet machining in Briefly explain the following key terms in electrochemical machining (a) Electrolytes (b) ECM tooling techniques with suitable ex

Define the half duplex with respect to serial communication, With respect t...

With respect to serial communication define the half duplex. Half Duplex Transmission: A channel of half duplex can send and receive, but not at same time. It's like a one-la

What do you mean by star topology, Q. What do you mean by Star Topology? ...

Q. What do you mean by Star Topology? Star Topology: In Star topology, all user nodes are connected to central node point that interconnects all individual users' links and nod

What is the working of sensor in robotics, (a) What is the working of senso...

(a) What is the working of sensor in Robotics ? (b) Define the following : (i) Proximity Sensor (ii) Tactile Sensors (iii) Optical Sensor. (c) What is an End Effecto

Explain imul instructions in 8086 family, Explain IMUL instructions in 80...

Explain IMUL instructions in 8086 family with example and their effect on flag. IMUL: It is an instruction for multiplication of two signed numbers. This result is a signed

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