1. Why a DC motor starter is called 3 point starter
Answers were Sorted based on User's Feedback
Answer / simpal
DC motor starter is called 3 point starter bcoz only 3
terminal (L,A,F)are available from starter.These 3 terminal
L(line),A(armature),F(field) must b connected to supply
terminal,motar armatuer terminal,and shunt field terminal.
|Is This Answer Correct ?||365 Yes||31 No|
Answer / c.balakrishna moorthy
Actually Dc motor starter are classified as two point
starter,three point starter and four point starter.
Three point starter is used in case of Shunt motor(some
cases this can be used compound motor also)
Four point starter is mainly used in compound motor.
Two point starter is used in series motor in order to make
the motor to run in safe manner.
Three points denotes Line terminal.field terminal and
armature terminal in which three points are connected.
three points L,A F.
that is the main reason
|Is This Answer Correct ?||164 Yes||25 No|
Answer / ravi693
Beacuse this 3 point starter has three points to save the
1) over load protection
2) no volt protection
3) starting huge currect protection
|Is This Answer Correct ?||241 Yes||112 No|
Answer / nagaraju .n
In an dc motor have 1.armature
in an 3point starter have 3point(L A F ),
it limits starting armeture current.because armeture is
very low resistence.
that way adding resistace series with the armature 3 point
starter should be used.
|Is This Answer Correct ?||113 Yes||19 No|
Answer / siddarth.m
the main purpose of using a three point starter is
to limit the starting armature current.......
This is because dc motor the initial voltage difference is
less so high current passes through the armature windings
which is not a desired factor.When we use a 3 point starter
it slowly induces the back emf in motor so that the voltage
difference is less and rate of current flow is less, so the
motor doesnt get spoiled
|Is This Answer Correct ?||88 Yes||24 No|
Answer / saila sandeep
because it has three terminals i.e;'l' 'f' 'a'
'l' is connected to supply
'f' is connected to feild circuit
'a' is connected to armature
|Is This Answer Correct ?||40 Yes||7 No|
Answer / karthick
because it has three terminals line,field,armature.these
three terminals are connected to their respective ones in a
|Is This Answer Correct ?||37 Yes||11 No|
Answer / rajeshwar kumar
dc motor starter is called 3 point starter it has three
terminal (L A F)(LINE,ARMATURE,FIELD) IT USED INSHUNT
|Is This Answer Correct ?||37 Yes||14 No|
Answer / sundar
Because they have three terminals namely line field and
armature. they are connected with the motor respectively,
|Is This Answer Correct ?||31 Yes||12 No|
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