Calculate armature voltage, Electrical Engineering

Assignment Help:

Question:

A DC, separately excited motor is supplied from a 240-V source. When the motor is unloaded, it draws 1A of current from the source. When the motor is loaded, it draws 25A of current and it rotates at 1560 rpm. The field current supplied to the motor remains unchanged and the armature reaction can be neglected. The motor armature resistance is equal to 0.4 Ω. Calculate the following:

a) The armature voltage of the motor under the load.

b) The amount of mechanical power developed by the motor under the load.

c) The no-load speed of the motor.

d) The amount of rotational losses of the motor.

e) The motor efficiency under the specified load if the field circuit power loss is equal to 360 W.


Related Discussions:- Calculate armature voltage

Demand side management, Demand Side Management Demand side management ...

Demand Side Management Demand side management refers to programmes implemented through utilities to modify consumer load profile. Energy efficiency programmes decrease energy

How monitoring and control has be done, How control and monitoring has be d...

How control and monitoring has be done - Sensors gather information from application being monitored or controlled. - The data being gathered is frequently analogue in natur

Gis applications, Gis Applications So far, you have learnt how GIS can...

Gis Applications So far, you have learnt how GIS can help utilities to obtain snapshots of the locations of substations, lines and cables in relation to their geographical bea

What is pipelined architecture, What is pipelined architecture? The com...

What is pipelined architecture? The computer is composed of two parts that operate asynchronously one part known as a BIU, fetches instruction from code memory while the memory

Show output characteristic of common emitter configuration, Q. Show output ...

Q. Show output Characteristic Of Common Emitter Configuration? Output characteristics: This family of curves may be divided into three regions just as was done for common base

Metering standards, Metering Standards Relevant standards on metering ...

Metering Standards Relevant standards on metering are given in Table. Table: Relevant Metering Standards  Standards Description

Multiplexed address data bus - pins and signals , Multiplexed Address/ Data...

Multiplexed Address/ Data Bus Pins AD 7 - AD) are used for multiplexed address data bus. This bus is bidirectional  input output  and  serves two  purpose. Initially the bus

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