Calculate terminal voltage, Electrical Engineering

Assignment Help:

A permanent magnet DC motor is being considered for use as a drive motor for a vehicle. The motor is known to have the following properties

No load speed @ 100 V = 2000 rpm torque at 20 A = 10 Nm R = 0.5 Ω

a) What is the full load (10 Nm) speed when the machine runs with the rated voltage of 100 V?

b) What terminal voltage V is needed to provide the cruising speed requirement of 2500 rpm with a torque of 10 Nm?

c) What terminal voltage V is needed to provide a braking torque of 10 Nm at zero speed ?

d) If the armature of this machine were short circuited (V = 0), what would be the current and torque if it was driven at 1000 rpm by the moving vehicle.

 


Related Discussions:- Calculate terminal voltage

Evaluate the directions of conventional currents, Q. For a p-channel JFET i...

Q. For a p-channel JFET in its active region, specify the polarities of voltages and the directions of conventional currents.

Mobile communications, Problem: (a) Compare the different MAC schemes...

Problem: (a) Compare the different MAC schemes, namely FDMA, SDMA, TDMA and CDMA. (b) Describe with help of diagrams the different phenomena involved in multipath propaga

Disadvantages of software defined radio, Disadvantages of SDR 1. Power ...

Disadvantages of SDR 1. Power consumption is more due to rapid switching of modes 2. Hardware design is not easy 3. Software bugs exist in the system

Important function of common control subsystem, Q. Important function of co...

Q. Important function of common control subsystem? If a call is destined to a number in an exchange other than present one processing the digits, initial translator generates t

Working out the function of a combination of gates, Working out the functio...

Working out the function of a combination of gates? Truth tables are able to be used to work out the function of a combination of gates. Inputs Outputs

What is a coprocessor, What is a coprocessor? It is a specially designe...

What is a coprocessor? It is a specially designed microprocessor which take care of mathematical calculations including integer and floating point data .it is intended to work

Thyristor - power semiconductor devices , Thyristor The name thyristor...

Thyristor The name thyristor  is derived bya  combination of the  capital  letters from  thyratron and  translstor. This means that thyristor is a solid  state device like  a

Find the per-phase impedance of the load, Q. A three-phase, three-wire 208-...

Q. A three-phase, three-wire 208-V system is connected to a balanced three-phase load. The line currents ¯ IA, ¯ IB, and ¯ IC are given to be in phase with the line-to-line voltage

The direction of motion, At what velocity must a conductor 75 mm long cut a...

At what velocity must a conductor 75 mm long cut a magnetic field of flux density 0.6 T if an e.m.f. of 9 V is to be induced in it? Suppose the conductor, the field and the directi

Lead acid accumulators with electrical equipment, Lead Acid Accumulators : ...

Lead Acid Accumulators : These are the most common storage batteries which can deliver a heavy current when short-circuited. There are also many other hazards with these accumulat

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