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Hello All, I'm having a hard tim 1

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Aug 31, 2021
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Hello All,

I'm having a hard time purchasing Protofer Magnetic Putty from Siemens, Is there anyone out there that can duplicate or have a like for like replacement?
 
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Do you have order number for this thing?
Can't get any hits trying to se what it is.

/A

“Logic will get you from A to Z; imagination will get you everywhere.“
Albert Einstein
 
It looks as though it’s a magnetic slot seal and Siemens applied for patents on it all around the world starting in 2014, but it may be something they only use internally on their own generators. I can’t find anything saying it is for sale.


" We are all here on earth to help others; what on earth the others are here for I don't know." -- W. H. Auden
 
NuclearProcurement:
The specific compound is proprietary to Siemens and is designed to match up characteristics with their preferred magnetic wedge materials. The idea is that it is a conductive putty form of the same magnetic material used in the stator (or rotor) wedge to help adhere the wedge to the lamination steel and provide a better mechanical and electrical bond. It is interesting to note that the manufacturer uses the same (magnetic) wedge material in their large machines as their wind generator designs - but the wind generators don't get the putty, even though they're just as likely to see the transient conditions and resulting electrical erosion as the larger machines.

I suspect that - like everyone else - the manufacturer is having supply-chain issues with obtaining some of the base materials ... hence the difficulty you're seeing in obtaining the end product.

You might get away with using a more commercially-available magnetic putty in a pinch, but you'll probably void any remaining manufacturer warranty as a result. You do want to verify that whatever putty you choose is suitable for the ambient conditions, in terms of chemical resistance and temperature (coil insulation just under the surface of the wedge should not be exceeding 120-140 C actual for Class F materials).

Converting energy to motion for more than half a century
 
A belated welcome to the forum Gr8blu. Great comments, LPS

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(2B)+(2B)' ?
 
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