Why a starter is used for a motor?

Answer Posted / phani chavali

consider a 3phase induction motor,it is a selfstarting
device.Eventhough it is a selfstarting one we are connecting
this device to starter because if we can not connect this
motor to stator because of sudden flow of currents in the
rotor windings some damage may takes place to the machine.so
we can start up the motor with starter means we can limit
the currents to certain value upto which the rotor gets
accelerated.When ever rotor attained its rated speed then
there is no problem of current flow.

Is This Answer Correct ?    24 Yes 18 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

9888


How to see the inductance in a transmission lines

1675


how to find impedance , mutual indatnce in transmission lines

1676


what is control supply rating of a machine

1500


what is the power factor used by the PHCN in nigeria? 2. what is the difference between an alternator and generator. 3. Generation of poweris in KV but how is transmission is in MW. 4.If the transmission of power is 20,000MW how can it be increaesed to 80,000MW

8046






why impudance relay used for medium transmission power system? why not others?

926


Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

1514


full form of flry b

3618


List advantges of active filter over passive filter?

639


If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.

1475


When we giving the 3 phase supply to ups system how to coming netural?

1648


IF ANYONE HAVE ANY QUESTION ASK ME AT MY MAIL anmol.bhardwaj5@gmail.com

1632


Is there any guideline say about display of earthing value near to earth pit

713


Define unilateral circuit?

709


how to carried out tan delta test in 11 KV alternator ?

2528