when an induction motor runs on load.at that time if we
reduce the supply voltage the current increases.But when it
runs without load,if we reduce the supply voltage the
current also reduced.why?.i checked it practically also.



when an induction motor runs on load.at that time if we reduce the supply voltage the current incr..

Answer / dilawar patel

when motor runs on load ;there is a load who will draw
more current if u reduce the voltage load will draw more
current because it is essential to run the desire load ,
Formull V=IR,...when ther is no load nobody is there to
draw the more current ,so current reduce if u reduce the
supply voltage

Is This Answer Correct ?    5 Yes 5 No

Post New Answer

More Electrical Engineering Interview Questions

I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

0 Answers  


what is the acceptable limit value for Desolve Gas Analysis/

0 Answers  


what is diff btw electric,magnetic & eletromagnetic field

0 Answers   Senthil,


How you give clearance to a spare feeder.

0 Answers   KSEB, L&T, Siemens,


what is the difference between KW and KVA?

15 Answers  






Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

0 Answers  


what is meant by bus bar and outgoing/incoming breaker in an electrical/electronic circuit

3 Answers  


How to calculate the total number cells required for a particular KVA UPS system?

1 Answers  


why we do occ & scc test in transformer ?how we can do it ?

2 Answers  


Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

3 Answers   Areva,


fundamentals of transformers.

5 Answers   Adani,


What is mean by Sub Synchronous Resonance(SSR)???

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)