How a Motor or Generator works?

  • Thread starter Moni
  • Start date
  • #1
Moni
181
1
How a Motor or Generetor works ???
 

Answers and Replies

  • #2
kyle_soule
240
1


Originally posted by Moni
How a Motor or Generetor works ???

I'm assuming you mean an electric generator as opposed to a generator ran by fuel?

In this case I searched google and found this site:
How a generator works.

Also, if this is not what you wanted a google search (with quotes " ") will do wonders for you, the sites usually provide for pictures, which don't seem to work well on PF.
 
  • #3
russ_watters
Mentor
21,937
8,973


Originally posted by Moni
How a Motor or Generetor works ???
Since harnessing and creating electricity work the same way, apply electricity to a motor and it spins. Spin a motor and it becomes a generator.

Its just rotating electromagnets.
 
  • #4
Moni
181
1
But what is the basic difference between AC and DC machines???

What is eddy current loss???

why tranformer rating is not KW why it is KVA???
 
  • #5
russ_watters
Mentor
21,937
8,973
Originally posted by Moni
But what is the basic difference between AC and DC machines???

What is eddy current loss???

why tranformer rating is not KW why it is KVA???
ac is alternating current, dc is direct current (constant). KVA is used because KW doesn't take into account phase for ac.

Not sure about eddy currents.

Maybe you should use google. It sounds like you have a lot of basic questions and you can find some quick answers there.
 
  • #6
dav2008
Gold Member
612
1
Yea...DC has a constant voltage(like when u connect a circuit to a battery...its always going to be , say, 12 Volts...(well not really since the battery has internal resistance, and i think the voltage goes down as the battery gets older...maybe not...))..
But in AC the voltage varies sinusoidaly...For example, most american outlets are 120 V and 60 hz..this means that the voltage goes between 120 and -120 60 times in a second...(correct me if I am wrong, please..i might be mistaken on some details_)
 
  • #7
drag
Science Advisor
1,100
1
Hertz is a unit of frequency - a full
cycle is when you return to your original
position - back AND forth.
 

Suggested for: How a Motor or Generator works?

Replies
11
Views
706
  • Last Post
Replies
3
Views
374
Replies
3
Views
439
  • Last Post
Replies
2
Views
707
  • Last Post
Replies
6
Views
727
Replies
11
Views
1K
Replies
30
Views
3K
Top