1. Why a DC motor starter is called 3 point starter

Answers were Sorted based on User's Feedback

1. Why a DC motor starter is called 3 point starter..

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

1. Why a DC motor starter is called 3 point starter..

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

1. Why a DC motor starter is called 3 point starter..

Beacuse this 3 point starter has three points to save the
motor.
2) no volt protection
3) starting huge currect protection

 Is This Answer Correct ? 241 Yes 112 No

1. Why a DC motor starter is called 3 point starter..

In an dc motor have 1.armature
2.field
3.supply
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

1. Why a DC motor starter is called 3 point starter..

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

1. Why a DC motor starter is called 3 point starter..

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

1. Why a DC motor starter is called 3 point starter..

a three point starter is onely usst four three point
(l,f,a) line,field,armature. so itis called as three point
starter

 Is This Answer Correct ? 44 Yes 14 No

1. Why a DC motor starter is called 3 point starter..

because it has three terminals line,field,armature.these
three terminals are connected to their respective ones in a
motor.

 Is This Answer Correct ? 37 Yes 11 No

1. Why a DC motor starter is called 3 point starter..

dc motor starter is called 3 point starter it has three
terminal (L A F)(LINE,ARMATURE,FIELD) IT USED INSHUNT
MOTOR

 Is This Answer Correct ? 37 Yes 14 No

1. Why a DC motor starter is called 3 point starter..

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

More Electrical Engineering Interview Questions

Megar test tell sufficient resistant

how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer

what curve and rateing would you use for a three phase 0.75kw motor?

i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle

We have AC-transformer 110/13.8kv,40MVA.If DC-Voltage=110kv is applied in its primary what will happen?

Can anybody tell me why inductors draw lagging current and capacitors draw leading current from supply?

is emf is indued if dc is passed through coil

I have AC automatic voltage regulator 15KVA What output currant?

How much current can 11KV line carry? What are the formulae used to calculate current across both side of transformer? Moreover I need to know can I connect 33KV line with transformer of 1600KVA? Details are: V=415, Pf= .9

which motor is used in high mast ( street light) & give the hight of tower .

Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

hwat type of motor is used in thermal gas turbine hydro nuclear power plants and why

Categories
• Civil Engineering (5038)
• Mechanical Engineering (4248)
• Electrical Engineering (16422)
• Electronics Communications (3525)
• Chemical Engineering (959)
• Aeronautical Engineering (192)
• Bio Engineering (95)
• Metallurgy (360)
• Industrial Engineering (253)
• Instrumentation (2962)
• Automobile Engineering (328)
• Mechatronics Engineering (90)
• Marine Engineering (107)
• Power Plant Engineering (170)
• Textile Engineering (198)
• Production Engineering (0)
• Satellite Systems Engineering (89)
• Engineering AllOther (1375)