75kW induction generator

This is a time lapse video of me rewinding the stator of a 75 kW induction generator. The video starts with me finishing up with the installation of coils("laying down the span"). After that I trim the excess phase insulation on the "opposite" end of the coils and use polyester cord to tie everything together. What comes next is making all of the pole and lead connections(this particular stator is a 4 circuit wye or "star" connection, with a tap connected to the neutral point[the "star"]). After tying that side down the registers are greased and the whole assembly is allowed to soak in a vat of polyester resin. This final process is referred to in the industry as "dipping and baking" and is a critical part of motor repair- it not only keeps the coils stiff so as to prevent vibration, but also allows for a uniform heat transfer from the coils "in the slots" to the core surface for adequate cooling of the motor

Category:

Science & Technology

Tags:

• science
• technology
• electric
• motor
• generator
• repair
• electricity
• time
• lapse
• industrial
• equipment

[sps12345able]

how mutch copper fits into one?

or in a 5.5 kw? thanks

[evildrome]

Was the motor dipped cold in the varnish or did you preheat it?

Very nice neat job BTW.

[PrestoWind]

Nice workmanship! I like your lacing.

[piper4seeformerly]

I like the no-sweat pose at the ending LOL

[betdan7777777]

nice work mate

[PhotonDrive]

Trevor: Your Generator needs energy input to provide output? I see no provision for that! Magnetic Levitation frictionless bearings now provide a method of outputing without fuel or battery input for common transport. See my new vid "Mag-Lev Air-Turbine Car Generator - FS1" for an example - which with your equiptment I have little doubt you can expand upon to higher output levels?