why most of the induction motors are delta connected?

Answer Posted / mukund apte. ( 91 9724397177

If we consider the following
(i) KW of Star motor & Delta motor are same.
(ii) Load on both motors are same.
(iii)rpm of both motors are same.
(iv)PF of both motors are same.
(v) both motors are working at same ambient temp.
(vi)And power supply is without hamonics.
THEN HEATING IN BOTH THE MOTORS WOULD BE EQUAL.
Note:- If power supply contains 3rd harmonics,then Delta connected motor would run hoter.
Practically this has been verified.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how to calculate cable size in diffrent loads?

1632


regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

1570


How to decide whether A / B / C / D curve type MCB should be used?

1846


Explain the purpose of inductor in an electric circuit?

632


What is principle of Floroscent tube 36watt.

1568






What are the basic components of the feedback control system?

614


what is charger supervision and control supervision?

1515


hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1431


What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

989


ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

3697


Whether the vacuum contactor requires Short circuit protection?If No,why?

1578


The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.

1488


What is quadrantal symmetry?

1091


hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com

1306


how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?

1509