1. Why a DC motor starter is called 3 point starter
- 21 Answers
- 75028 Views
- ABB, CG, College School Exams Tests, Crompton Greaves, Infosys, Siva, I also Faced
- E-Mail Answers
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
write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;
Why do we avoid electrical conduits in floors at apartments?
(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?
what is earth resistance? how to measured? and give values at power station and mcc area?
why the voltage and current in a long transmission line are called travelling wave?
sir i want previous entrance exam papers for written test
solor panels arrange some angle,panel is flat fitted energy was produced or not why?
why does make gain margin and phase margin on same plot.?
WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION
What is the difference between security constraint unit commitment and security constraint optimal power flow?
In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.
What is Instantaneous Earth fault relay,how will work
why do we need to use 3c+3e cable, normally i select only 3c+e cable and i think it is enough. pls explain the usefull of 3e cable ( in this project the earthing system is well done)
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?
