Eddy Current Brake

http://en.wikipedia.org/wiki/Eddy_current_brake

http://iopscience.iop.org/0143-0807/25/4/001;jsessionid=FEECE60B9892CFB75AC80774AF4F83DB.c1

http://www.youtube.com/watch?v=8Q4eG_JhAyc

http://www.drivesourceusa.com/current-brakes.htm

Any Good ?

Unlike friction brakes, which apply pressure on two separate objects, eddy current brakes slow an object by creating eddy currents through electromagnetic induction which create resistance, and in turn either heat or electricity and it slows down a train or a roller coaster..

Hmnmmmmm...

Other members have offered up solutions to your question "What is the theory of eddy current brake used for reducing the AC frequencies 50/60?"

I must admit, I did not know that AC frequency could be reduced from 50Hz to 60Hz with an eddy current. Or, from 60Hz to 50, either way.

Can someone help me out here?

http://www.50hz.com/

it would appear it can

Hey there peter.

Well, looking through your link I find no reference to eddy current. Is it there somewhere, and I am simply not finding it?

My puzzle is: What is the relationship between an eddy current brake and a frequency converter? That is the OP question, unless I grossly misread the OP.

As far as I know, there is none. Am I misedidimicated unidscombuterated wrong?

sorry nothing about eddy currents i thought you asked about 50 hz to 60 hz conversion

No. I am aware of Hz converters, and eddy current brakes.

That is my point...

I have a suspicion the OP is homework or test question intended to trick the student into giving some made-up answer, or answering half of the question. I believe the homework answer to have been "There is none, they are separate".

I think that school is out, and this can come out now.

http://www.google.co.uk/search?q=60hz+to+50hz+converter&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7DKUK_en-GB&redir_esc=&ei=7iUATInYMJb00gT6-ZT3Ag

how about this one ?

http://www.google.co.uk/search?q=eddy+current+conversion+of+50+hz+to+60+hz&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7DKUK_en-GB&redir_esc=&ei=RzgATM_IJ5i80gTc2pj3Ag

No. Nothing.

I will give up for now as theres a good film on telly,