Answer / suganya

To limit the starting current we are using starters. In
motors the voltage equation is, v=Ia.Ra + Eb. At the time of
starting no back emf will be there i.e Eb=0. therfore
v=Ia.Ra since the resistance is negligible v=Ia i.e armature
current will be equal to the supplied voltage and speed will
be high. so to limit this current we are going for starters.

Answer / chandu

for giving protection to the motor
from overloads and adjusting the
speed of the motor. now a
days,starters are replaced by drives
for automatic control.there are
various types of starters.

Answer / bhabanipattanayak

Starter is mainly used for
limiting the high starting
current to a safe value. It is
also provide with different
equipment to protect the
motor from overload & low
voltage.

Answer / devender kumar

for giving the starting torque to the motor.

Answer / pradyumna chandra panda

for smooth control and provide trip system....

please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

0 Answers   Jindal,

Why we use ups battery and dsdb battery in thermal power plant

0 Answers   MDeC,

what is the iron loss in a 11KV/440V transformer?

2 Answers   Bhel, TVS,

What is meant by analogous system?

0 Answers  

What is the difference between MPCB and OLR?

11 Answers   ABB, Raj Agencies,

how can we Increase the Value Of Frequency in electric circuits

0 Answers   HMK,

Sir, I m 3rd year student 4m DCE and want to do internship in siemens or l&t or any other mnc related to electrical engineering. please tell me the procedure 4 same and oblige me

0 Answers  

what is SWA type of cable?????

4 Answers  

how does this job compare with others you have aplied for?

0 Answers  

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

0 Answers  

what is difference between 5A and 100A CT constructional wise and operation?

1 Answers  

In VSD (variable speed drive)I/P and O/P connections given wrongly what will happen?

5 Answers