How to control speed of DC motor with AC power?
Answer Posted / j.senthamizh
First we should be convert ac into dc using rectifier. Dc
motor speed control method classified into two 1.armature
control 2.field control . we are using armature control
method motor speed can be control below rated speed.or
using field control method the motor speed is above rated
speed. most people using armature control method because
field control method is dangerous than armature control
method.we are using field speed control at motor is running
condition and now field is open which times motor running at
dangerous speed. at the time motor bearing and shaft is
affected this condition.
Is This Answer Correct ? | 24 Yes | 3 No |
Post New Answer View All Answers
why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?
As i want some model question paper in basic computer science and history please send me immediately sir
what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)
Explain The Application Of Storage Batteries?
WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?
How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.
why is the power generator connected as star earthed or star earthed through reactance and what its features ?
HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory
what is meant by 3rd hormonics ?
from which subjects most of the technical que will b asked for hpcl(electrical).pls help me
how to select the isolation tranformer for siemens 802dsl cnotroller
1.4 What is meant by CT knee point voltage and how would you determine it
If a high resistance fault occurs,then what are the changes will happen in the system?
What facility we get after CT secondary earthing and how?
why and how current drawn by battery charger depends upon the altitude where it is located?