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Winding Inductors with Teflon Wire

D

D from BC

Jan 1, 1970
0
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

Requirements
#14 to #16 AWG
stranded
Vrating: 50Vrms min
20 to 50 foot spool
Online ordering preferred

This is for easy winding of a high current inductor.
D from BC
 
J

John Larkin

Jan 1, 1970
0
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

Formvar! Or solderable nylon or polyurethane "varnish."

John
 
M

martin griffith

Jan 1, 1970
0
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

Requirements
#14 to #16 AWG
stranded
Vrating: 50Vrms min
20 to 50 foot spool
Online ordering preferred

This is for easy winding of a high current inductor.
D from BC
whats wrong with enammeled wire?


martin
 
E

Eeyore

Jan 1, 1970
0
D said:
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

The insulation on triple insulated winding wire is fairly thin but good for
several kV. I think it's great stuff. It avoids much of the need for fabricated
safety margins in off-line power transformers too.

http://www.furukawaamerica.com/catDetail.php?catID=38

Graham
 
D

D from BC

Jan 1, 1970
0
whats wrong with enammeled wire?


martin

Too stiff...
It's gotta bend on a ~2" circumference.
Also it's easy to accidentally kink the wire when winding the toroid.
D from BC
 
D

D from BC

Jan 1, 1970
0
Formvar! Or solderable nylon or polyurethane "varnish."

John

On stranded wire?

Maybe I might get cheap PVC insulated #14 stranded wire
,strip off 20ft of PVC insulation
and then run the wire through a pot of polyurethane..
Hang... let dry..
and presto...Highly flexible, highly conductive magnet wire. :)
D from BC
 
M

martin griffith

Jan 1, 1970
0
Too stiff...
It's gotta bend on a ~2" circumference.
Also it's easy to accidentally kink the wire when winding the toroid.
D from BC
ah.. check out square section wire, sorry, no urls, just came across
it while looking for geek porn


martin
 
M

Michael A. Terrell

Jan 1, 1970
0
D said:
Too stiff...
It's gotta bend on a ~2" circumference.
Also it's easy to accidentally kink the wire when winding the toroid.


So, the truth comes out. You get kinky with Toroids. :(


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
G

GregS

Jan 1, 1970
0
whats wrong with enammeled wire?

Stranded would be much esier to acomplish, but you have to watch the TFE
for sharp corners because it is so soft, and it continues to travel or flow after the
initial wind if there is stress. A high temperature PVC might work. Just check out
the available insulation thicknesses.

grge
 
J

John Larkin

Jan 1, 1970
0
On stranded wire?

Maybe I might get cheap PVC insulated #14 stranded wire
,strip off 20ft of PVC insulation
and then run the wire through a pot of polyurethane..
Hang... let dry..
and presto...Highly flexible, highly conductive magnet wire. :)
D from BC


Oh. Stranded. Use the mil-type teflon then. The insulation is very
thin. Or thinwall shrink tubing.

John
 
D

D from BC

Jan 1, 1970
0
Oh. Stranded. Use the mil-type teflon then. The insulation is very
thin. Or thinwall shrink tubing.

John

I should have called this post:
"Microthin Jacketed Stranded Wire for High Current Toroids"

Thanks..I'll do some Googling on the mil-type teflon..
D from BC
 
J

John Larkin

Jan 1, 1970
0
On stranded wire?

Maybe I might get cheap PVC insulated #14 stranded wire
,strip off 20ft of PVC insulation
and then run the wire through a pot of polyurethane..
Hang... let dry..
and presto...Highly flexible, highly conductive magnet wire. :)
D from BC

Or just wind parallel pieces of smaller solid enameled wire, twisted
or not. Less eddy-current loss. MWS sells pseudo-Litz wire like this,
just stranded wire with enamel on the individual strands.

John
 
D

D from BC

Jan 1, 1970
0
Or just wind parallel pieces of smaller solid enameled wire, twisted
or not. Less eddy-current loss. MWS sells pseudo-Litz wire like this,
just stranded wire with enamel on the individual strands.

John

I just might do that...

But...I'd like to try an alternative and that's to use heavy gauge
thin jacketed stranded wire. Teflon wire was my first thought.

I'm probably going to make my own multifilar wire with my left over
magnet wire if I have nothing better.
D from BC
 
T

Tam/WB2TT

Jan 1, 1970
0
D from BC said:
Too stiff...
It's gotta bend on a ~2" circumference.
Also it's easy to accidentally kink the wire when winding the toroid.
D from BC

I think #16 magnet wire would be easy enough to use. Start the winding from
the middle of the wire so you don't have to pull the whole length through
the core. I did once resort to using stranded Teflon wire, but that was #12
for heavier current.

Tam
 
E

Eeyore

Jan 1, 1970
0
D said:
I just might do that...

But...I'd like to try an alternative and that's to use heavy gauge
thin jacketed stranded wire. Teflon wire was my first thought.

I'm probably going to make my own multifilar wire with my left over
magnet wire if I have nothing better.

What frequency is this going to run at ?

Graham
 
B

Barry Lennox

Jan 1, 1970
0
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

Requirements
#14 to #16 AWG
stranded
Vrating: 50Vrms min
20 to 50 foot spool
Online ordering preferred

This is for easy winding of a high current inductor.
D from BC

Take a look at these guys. They have some very nice wire wrapped in
Teflon and Kapton tapes. It's good to 200 deg C, does not kink, and
has TUV approvals for PSU separation. The problem is that they only
sell in larger reels 5 or 10 lbs. However, if you ask nicely, they
will probably send a sample, - I got some a few years ago.

Barry

http://www.vipwire.com/power.html
 
J

john jardine

Jan 1, 1970
0
D from BC said:
I'm was on Ebay looking at Teflon wire because I think the insulation
thickness is generally less than PVC.

Is there other insulation or wire types could I search for that have
very thin insulation (thin jacketing)? It'll most likely have a low
voltage rating too.

Requirements
#14 to #16 AWG
stranded
Vrating: 50Vrms min
20 to 50 foot spool
Online ordering preferred

This is for easy winding of a high current inductor.
D from BC

Some I used to dig myself out of a hole was bought in as 'airframe wire'.
Thin Teflon coat over multistrand, silver plated wires. Lovely, magical
stuff but 50mtr of 6mm^2, cost an arm and a leg.
 
D

D from BC

Jan 1, 1970
0
What frequency is this going to run at ?

Graham

100khz but....
My app has 10x more DC current than AC current.
D from BC
 
D

D from BC

Jan 1, 1970
0
I think #16 magnet wire would be easy enough to use. Start the winding from
the middle of the wire so you don't have to pull the whole length through
the core. I did once resort to using stranded Teflon wire, but that was #12
for heavier current.

Tam

Doh!!...I can start winding in the middle or the wire..
It just blows me away sometimes why I don't think of these things....
:)
Thanks..
D from BC
 
D

D from BC

Jan 1, 1970
0
Some I used to dig myself out of a hole was bought in as 'airframe wire'.
Thin Teflon coat over multistrand, silver plated wires. Lovely, magical
stuff but 50mtr of 6mm^2, cost an arm and a leg.

Next on EDN Magazine... "When Wire gets Sexy" :)

Airframe wire??? Was that the official customs description for lower
duty? Sneaky :)

I've never used Teflon insulated wire before but I've seen some prices
on Digikey.. ouch!
D from BC
 
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