[sdiy] OT: Generator?

[David Halliday]

Work in equals work out ( more or less )

You work to turn the handle, you remove work from the generator by placing
an electrical load on its output.  The generator is only converting the work
from one form to another ( mechanical to electrical )

You will loose some energy overall - the initial friction in the generator
plus electrical inefficiencies - this energy gets converted into heat and
noise and is lost to the electrical output.

Works the other way too - take a motor that is running at its rated voltage
and decrease that voltage, the power output of the motor will be reduced.



-> -----Original Message-----
-> From: owner-synth-diy at node12b53.a2000.nl
-> [mailto:owner-synth-diy at node12b53.a2000.nl]On Behalf Of
-> Mitchell Hudson
-> Sent: Saturday, April 21, 2001 10:49 AM
-> To: Synth DIY
-> Subject: [sdiy] OT: Generator?
->
->
->     I got in an argument with a guy the other day about genertors. He
-> says that if you are turning the crank on your generator and
-> there is NO
-> load connected to it it will get harder to turn when you
-> connect a load
-> to it. For example you have a generator connected to a radio
-> the radio
-> is off and you are turning the crank; you turn the radio on
-> and it takes
-> mre force to turn the handle.
->     After talking with a few people I was convinced that
-> this was true
-> but no one could explain it.
->
-> --M
->