Answer / sanjeet swarnakar

to limit the starting current ,because the resistance of
armature is very less so starting current becomes four to
five times . so to save the motor starter is used

Answer / satish kumar .g

motor can't start at high current so we use starter to
increase the current rapidly to motor.Then motor fix up the
high current and start rotate

Answer / k.delip kumar

IF SUUDEN FLOW OF CURRENT IN AN ac or dc MOTER THE WINDINGS
MAY GET DAMEGED SO TO OVERCOME THIS STARTER IS A TECNOLOGY
TO REDUCE THE STARTIN CUREENT

Answer / irfanullah

Basically we know that current is divided in parallel network .in order to control the current ratings for both field and armature in such cases we are using starter .

Answer / niranjan

since during starting the back emf is zero and as v=e+ir
and as the armature resistance is approximately negligible
therefore the armature current is very high .Therefore
inorder to limit the starting current a starter is used
for a motor.

Answer / shankar

In motors stator will use for rotote the roter .when will
we not used stator we can't get the magnet filed .when we
give the supply to motor dirctly go to stator resistants &
brons the magentic filed & roter rotate

Answer / pradeep

starter is used for smooth start of rotor without
tremendous increase in current.the help to avoid backlash &
reduce the ohmic losses.

Answer / senthil kumar.a

answer no4 . it is wrote by deepesh is write, but it only
acceptable for dc motors, incase of ac motor

in ac motor thr rotor current dirctly proportional to slip
at the moment of starting the rotor is standstill, it means
the slip has the it is maximum value so therotor current
also maximum . it cause rotor is burned. to avoid it we
must provide the stater

Answer / bala

To give starting resistance to motor.

Answer / karthick

it is used to start the motor.

my company total load is 1000kw, 415volt, all load are inductive load. incoming powerfactor is .8. we want to have0.95 pf connecting capacitors. so now how much rating of capacitors we have to connect? show how?

3 Answers  

SMPS (Switch Mode Power Supply) unit is denoted by KW or KVA?

6 Answers  

What are the types of Transformer? Name them.

9 Answers   Bhel, HSL, NTPC,

whatis the commertial spec. of distribution boards ?

0 Answers   Bosch,

if i have to use 14 kw what size of power cable can i use and size of earth cable also.

2 Answers  

what is second harmonic, how is effect transformer ?.

2 Answers   DEWA,

what is lxr?

0 Answers   NTPC,

what is the meaning of Air condition "TON"

3 Answers  

How the cable size for a motor is decided

14 Answers   NTPC,

How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

Pls explan the OLR setting in VCB at HT yard

0 Answers   Juniper Networks,

why 3 phase motors are preferable over single phase motors ?

4 Answers