Induction
motors are not kept on running in Star connections due to following reasons:-
In Star connections,
Phase current= Line current and
Phase voltage= Line voltage/ √3.
As
Power = √3X Line Voltage XLine Current X Power Factor
This
means that during starting voltage get reduced by factor 1/√3.
So
current is also get reduced by factor 1/√3.
So
Torque also gets reduced by factor 1/3 as Torque is directly proportional to
square of voltage.
Due to reduced voltage Motor unable to take-up higher loads.
So motor power get
reduced by 1/3 times then in Delta connections that is why motor is not kept
running in Star connections. As motor is get under utilized.
So Motor will kept on running at reduced power and means motor will run at low efficiency
So Motor will kept on running at reduced power and means motor will run at low efficiency
MRS Agencies is a TOP Copper Bonded Chemical Earthing Electrode Manufacturers in India. Our is a professionally-managed organization that guarantees the high quality of our product variety is maintained thoroughly. We can also customize these Pure Copper Earthing Electrode, Chemical Earthing/ Gel Earthing Electrode, Chemical Pipe Earthing Electrode, Lightning Arrester, products as per requirements detailed down by the clients.
ReplyDelete