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

Answer Posted / 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 ?    165 Yes 25 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Q: How to calculate Transformer losses , tell us by Formula.

1511


what happen when power factor of 2 parallely operated transformer become equle?

1715


HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER

1717


What is the rate of WCT on the Electrical Contracts comprising of DG Sets and Civil Works in Delhi ?

1629


What is the effect of pd controller on system performance?

645






can any one provide me a connection wiring diagram for a DG set control panel along with BOM?

1751


what type of questions are asked and howmwny questions belong this catagory?

1718


State and define norton’s theorem?

781


what is the need of starter in tube light and what type of starter is used in that?

1517


how to flameproof electrical motor on the shaft?

1531


how we can explain arc heatng?

1467


What products have you designed which have entered high volume production?

1586


Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.

636


What is meant by vector group

1980


Define steady state error.

648