:: Home Page
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   Errors
   Testimonials Refer this Site  Refer This Site to Your Friends  Site Map  Contact Us      
Categories >> Engineering >> Electrical Engineering


Question What is the d/f between DOL & star delta starter & automatic
star delta starter?
 Question Asked In Companies :: ACC, Dalkia, Indeco, Wipro, Novotel, Engineering, NINL, RMH Control Systems,     < I also faced this Question! >
 Question Submitted By :: ravi
  Answer Posted By  
in dol motor is supplied full line voltage hence torque
will be more, whereas in star delta the voltage is reduced
by root 3 times hence torque reduced

Is This Answer Correct ?    47 Yes 15 No

  dipanshu singh
View All Answers
Please Help Members By Posting Answers For Below Questions
 Question Views   Select
How Self works in DG set 96
What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu? 386
High speed earth switch operation with diagram 85
What should be the length of transmission line so that we can see/obtain the full sine wave of voltage?? 324
How to calculate the fuse rating depend upon the DC circuit? 926
Swg formulae 309
what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network 1101
what is sevice settings for mccb?How can be it setted? 297
can anyone explain 11kV 3core cable megger,hi pot test procedure with connection details? 1316
what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency. 1076
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks 382
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply.............. 291
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value? 993
what is maximum or Threshold value of current 7 voltage that a common man can withstand 307
Why you are switching off arc protection mcb when you are taking shutdown for lv board. 36
E-Mail New Answers        Answer Selected Questions