O.T. Rewinding electric motors

Using the patented Mavis Beacon "Hunt&Peck" Technique, mark

These blokes know more about 3-phase motors than pretty much anyone.

Engineers, any suggestions?

 

I'd send a pic over to Andy for a second opinion. If anyone can get
through something so solidly seized it'll probably be him.

Ha, it's been *years* since I did 3 phase motor theory

Well, the oil'll be there to cool the transformer and reduce contactor
arcing. A couple of times for short periods would probably be ok.

Watch out for old transformer oil though, of the era you're talking
about it used to be laden with PCB's [1] which are pretty nasty. So
don't go dipping your hands in it or drinking it ..

Cheers,

Paul.

[1] Polychlorinated biphenyl [2]
[2] http://en.wikipedia.org/wiki/Polychlorinated_biphenyl

 

In message

I've heated it as much as I dare. It's literally an eighth away from the
bearing housing.
Its being soaked in oil/paraffin at the moment.
I'll rig up puller next weekend. Normal pullers cant get behind it and I
can't pull on the edges...

OK

Eek. I'll never make it to old age at this rate....

 

Heh, my love of high voltage stuff never ceases to wane. Ever since I
saw a 3 phase mercury arc recifier at full chat.

http://www.venganza.org/wp-content/uploads/2009/04/mercury.jpg

Very Flash Gordon-esque

Paul.

 

In message

Crikey. Bet that gets you a tan....

 

This gives a better overview.

http://www.electricstuff.co.uk/mercarc.html

Kinda scary seeing one operate with 3 foot long arcs hitting hot
mercury :-0

Paul.

 

I remember seeing a mercury arc rectifier in the Science Museum when my
Dad took me as a lad.

 

*DING*

Mercury poisoning

<tips nose with finger>