|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
|
|
Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
|
In Reply to: Re: How hot is "hot" ? posted by EvilSeav on April 24, 2007 at 12:22:54:
Hi.The insulation varnish of the magnet wires used for the windings are normally from 155C (PU varnish) & up to 200C (PE varnish).
The 'weakest' thermal part of a transformer is the interwinding insulation sheets. Old transformers used sort of kraft papers which can go up to 105C. Nowadays, polyester (mylar) sheets are commonly used to replace old kraft papers & can go up to 130C.
So it should be safe for a max steady operation temp of 65-70C.
Yes, torroidal power irons are more efficient than EI. But given same VA loading, torroidal power irons are usually made smaller. Their smaller sizes kinda offset the higher efficiency.
c-J
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- No problem for 70C! - cheap-Jack 13:29:36 04/24/07 (1)
- Re: No problem for 70C! - EvilSeav 21:12:05 04/24/07 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
