Vital Questions About Alternator And Motor

Thread Starter

henry newton

Joined May 5, 2008
11
I must say here that i am not an expert in this area (Electric
generator or Alternator and Electric Motor) but judging by what is
happening in recent years in-terms of the continious rise in oil price
which has reached a record high recently and more importantly the
undenialable,bleak and apocalyptic picture of the earth as a result of
global warming i am beginning to find it interesting or should i say
out of necessiting to take an adventure into this area hoping to
contribute my part to solving this problems.But before i kick start my
adventure just like anybody who would embark on one,i need a survival
kit.That is where you guys, anybody that has some knowledge in this
domain comes in.I hope it is worth it.
Well i have some vital and basic questions about an Electric generator
or an Alternator as well as Electric motor:

1.Is it possible to get a decent or reasonable result in terms of
terminal voltage,current or power at the output of an Alternator that
uses Permanent magnet as the rotor instead of electromagnent especialy
now that there are more powerful permanent magnet available.

2.What are the advantages and disadvantages of using permanent magnet,
electromagnent as the rotor of an Alternator.

3.What are the factors that determine the terminal voltage,current or
power output of an Alternator.

4.Can Aluminium laminated core be used in the rotor of an Alternator an
Motor instead of soft iron core that seem to be predorminantly used.If
Yes why isn't Aluminium used. Personaly i think aluminium is lighter
thus if used could mean lighter rotors and conscequently faster spinnig
rotors.this is just what i think but i still want some other technical
reasons from you guys.

5.What are the advantages and disadvantages of using more poles(i.e any
thing greater than two poles) for the rotor of an Alternator in terms
of the terminal voltage,current or power output of an Alternator

6.What are the advantages and disadvantages of using more poles (i.e
any thing greater than two poles) for the rotor of an Electric Motor.

7.If the output Frequency of an Alternator is specified by the
manufactural as 50Hz, and for some reason drop to say 30Hz which is way
to low for an electric home appliance the Alternator is supposed to
power.Is it possible to use some kind of electronic circuit at the
terminal to fix this probblem by way of increasing the frequency back
to 50Hz. In other words this special frequency step-up electronic
device is placed between the Alternator and the electric home appliance
from which it gets it's power and in the right frequency.

8.how does the speed of rotation of the rotor of an Alternator affects
the terminal voltage,current or power of an Alternator.

Thank you guys in advance.

ooch! i forgot, i am Henry bye the way.

newton.buck@gmail.com is my email address
 

thingmaker3

Joined May 16, 2005
5,083
1. Yes



4. Aluminum is not magnetic and would therefore be a bad choice.



7. Sorry, no such animal. The universe just doesn't work that way.


For the other numbers, I suggest borrowing a good library book, as those answers are fairly lengthy.
 
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