we know that dc motors are more superior then three phase
induction motors in torque generation though they are not
much used in industries why?
Answer Posted / apoorv
dc motors are not used because of commutation problems , and dc supply has to be given which require rectifiers at generating end and commutators cannot efficently convert ac generated vtg inside dc machine into output dc vtg.
Is This Answer Correct ? | 2 Yes | 2 No |
Post New Answer View All Answers
which type of questions asking for solar companies?
what is the meaning of WYE and DELTA in Electric meter?
What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
for what purpose the star point is done in ct
I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?
any application of back emf
What is the function of a neutral reactor.
what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights
what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?
What is float cum boost charging system?
What is difference between Sample test and Routine test in safety standard?
What are the reasons for the parallel operation of transformers?
Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed