High temperature colenoid coil

[asimpson]

I need to run a solenoid at 500 deg C around 300 V for R&D work.
6-10 amps
No cooling available.
Continuous duty

Apart from resistance effects of temperature most insulations will be breaking down at temperatures above 150 deg. C

Coil must be fairly compact and wound like traditional solenoid so thick insulation like ceramic beads not feasible.

Can anybody recommend anything?

Many thanks.

 

[MikeHalloran]

Use air for insulation.
Cut the conductor from the solid, like a Heli-Cal coupling.



Mike Halloran
Pembroke Pines, FL, USA

 

[arunmrao]

You can consider copper tubes wound helically, and cooled internally with water circulation. Electrical insulation,you could have as per your desire.

_____________________________________
"It's better to die standing than live your whole life on the knees" by Peter Mayle in his book A Good Year

 

[MagMike]

Can you wind a free-standing coil and then repeatedly dip in a slurry, similar to what they do for investment casting? I believe that is what the do for some power resistors.

 

[MJR2]

Look at anodized aluminum strip.

Mike