Re: big L

On Sat, 21 Dec 2024 14:28:52 +0000, Martin Brown
<'''newspam'''@nonad.co.uk> wrote:

On 17/12/2024 14:58, john larkin wrote:

What's the biggest inductor, the most Henries, that you know of? I
seem to recall some audio transformer that was something like 100 H.

>
I think the Fermi Lab's Tevatron magnet at 1000H and 1500A is one of the
largest ever made but some of the latest GW class mains substation
transformers must have similar levels of inductance and stored energy.
>
See:
https://electronics.stackexchange.com/questions/303320/what-is-the-largest-inductance-value-ever-attained-in-henries

Transformers don't store energy - large L has no particular benefit
in their design, save limiting magnetizing current to below a
certain acceptable level.

High L in audio is to reproduce lower frequencies with
lower distortion.

RL