Answer / qureshi majid ahmed

The dc motors are not much used in the industrry because we
need every time the commutator to convert internally
generated AC voltage into dc voltage.For large scale
industries we can not accomodate commutator in this range.So
even having robust characteristics,they are not preffered
for large machines

Answer / siva shankar

Presently AC supplly is going on thats y... if we keep the DC motor there we need some rectifiers

Answer / naeem anwar

mostly, industry uses an induction motors for constant
speed as required for your jobs just like paper mills,
variation in speed cause paper broken etc.
secondly, vfd(variable frequency drive )are made mostly to
control different parameters of AC motors.

Answer / 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.

Answer / yash sharma

if you are richy rich you can afford DC motor.simple

How to calculate cable sizing

5 Answers  

What are the procedures followed for underground cable laying.....???

2 Answers   KSEB,

what is the transformer

5 Answers  

1 ton aircondition(AC)consume how much watt?

6 Answers   Indus Towers,

what could be the reason of a burnt current transformer in an electrical panel

1 Answers   ERWAT,

I have 2 Nos of 2500kVA 33/0.415V cast resin transformers. How to decide on ampere rating of HT Panel? Also advise me how many panel RMG i have to consider whether 4 panel ok?

1 Answers  

How LT megger works ?

0 Answers  

how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor

0 Answers  

-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

0 Answers  

what is electricity

3 Answers   APGenco,

what is bus PT ?

4 Answers