|
|
|
|
|||||||
| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
 |
|
|
Thread Tools |
22nd Jan 2019, 11:18 am
|
#21 | |
|
Dekatron
Join Date: Feb 2007
Location: Lynton, N. Devon, UK.
Posts: 7,077
|
Re: Transformer laminations
Quote:
Just a light misting on one side will be enough, You're only insulating for a few tens of millivolts, and the occasional weak spot will have virtually immeasurable effect. Whatever you do, make sure it is thoroughly dry and cured, if necessary oven bake it. You don't want to be inserting laminations and as you try to ease the last few, find them binding together, with your spray coming off, balling up, and jamming solid half-in! |
|
|
|
22nd Jan 2019, 11:35 am
|
#22 |
|
Nonode
Join Date: Nov 2016
Location: Aberaeron, Ceredigion, Wales, UK.
Posts: 2,882
|
Re: Transformer laminations
Very interesting regarding the vacuum process, so what conclusion are we coming up with regarding David’s question.? Reduced production cost and noise reduction?
Cheers John |
|
|
|
22nd Jan 2019, 1:25 pm
|
#23 |
|
Hexode
Join Date: Oct 2010
Location: Box End, Beds. UK.
Posts: 271
|
Re: Transformer laminations
My understanding is that the eddy currents are trying to circulate around the cross section of a limb, ie in the same plane as the windings. Welding one side makes little difference because there is no equivalent short circuit on the other side of that particular limb, hence the currents still can only circulate within each lamination
Somewhat similar, though for a very different reason is the shading rings on relay poles, cheap motor stators etc, where a long resistance "winding" is added to increase the eddy currents |
|
|
