1. Why a DC motor starter is called 3 point starter
Answer Posted / 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 |
Post New Answer View All Answers
What is the difference between resistance grounding system and resistance earthing system?
When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?
How to set the relay,,??
can i use the six sigma method which is used in management area, in state estimation of power systems?
ROC converges if poles and zeros lie inside a. Origion b. Z=1
what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation
What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?
how to control the speed to switched reluctance motor
Why front mounted CT polarities are always towards breaker?
What is meant by coupling capacitor?
what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
what is the criteria for selection of conductor used for ehv ac electrical dischrge
why magnetising curve not start with zero voltage?
What is the settings of distance protection relay in 400 kv line
What are the applications of the electric motors?