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Re: Magnet Wire...
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Magnet Wire...
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From: Tim Chandler <tchand-at-slip-dot-net>
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Date: Fri, 23 Feb 1996 22:28:29 -0500
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>Received: from slip-dot-net (slip-3.slip-dot-net [204.160.88.17]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with SMTP id VAA02143 for <tesla-at-grendel.objinc-dot-com>; Fri, 23 Feb 1996 21:07:22 -0700
At 08:03 PM 2/22/96 +0700, you wrote:
<snip>
>> I was looking over the NEMA MW-1000 magnet wire specifications
>> document, and I was wondering something.
>
>> What type build is the best to use???
>
>> For example PHELPS DODGE Imideze has 4 different builds:
>
>> (1) Single Build 2850 V (Min. Breakdown Volts)
>> (2) Heavy Build 5125 V
>> (3) Triple Build 6850 V
>> (4) Quadruple Build 7310 V
>
>> (Min. Breakdown voltage is for #22 AWG Copper [MW 16-C])
>
>> I currently have enought of both, Heavy build and Triple build
>> Imideze, to wind my 12" coil form, problem is which one to
>> use???
>
>If it were me I would use the heavy build. You did not post the
>actual thickness of the build, which probably would be more
>helpful than breakdown voltage. Excessive insulation thickness
>will affect the inductance per unit volume in the construction.
>
>Richard Quick
>
Opps, here is a more complete list of the specifications on the Imideze magnet
wire as I got them from PHELPS DODGE:
SINGLE-BUILD: Type: : 20 AWG Imideze
Conductor Diameter : 0.0321"
Insulating Coat 1 Build: 0.0009" (100%)
Total Insulation Build : 0.0009" (100%)
Magnet Wire Diameter : 0.0339"
Break-Down Voltage : 3000V
Type: : 21 AWG Imideze
Conductor Diameter : 0.02855"
Insulating Coat 1 Build: 0.000875" (100%)
Total Insulation Build : 0.000875" (100%)
Magnet Wire Diameter : 0.0303"
Break-Down Voltage : 2925V
Type: : 22 AWG Imideze
Conductor Diameter : 0.02535"
Insulating Coat 1 Build: 0.000825" (100%)
Total Insulation Build : 0.000825" (100%)
Magnet Wire Diameter : 0.270"
Break-Down Voltage : 2850
HEAVY-BUILD: Type: : 20 AWG Imideze
Conductor Diameter : 0.0321"
Insulating Coat 1 Build: 0.0009" (60%)
Insulating Coat 2 Build: 0.0006" (40%)
Total Insulation Build : 0.0015" (100%)
Magnet Wire Diameter : 0.0351"
Break-Down Voltage : 5400V
Type: : 21 AWG Imideze
Conductor Diameter : 0.02855"
Insulating Coat 1 Build: 0.000855" (60%)
Insulating Coat 2 Build: 0.00057" (40%)
Total Insulation Build : 0.001425" (100%)
Magnet Wire Diameter : 0.0314"
Break-Down Voltage : 5250V
Type: : 22 AWG Imideze
Conductor Diameter : 0.02535"
Insulating Coat 1 Build: 0.000825" (60%)
Insulating Coat 2 Build: 0.00055" (40%)
Total Insulation Build : 0.001375" (100%)
Magnet Wire Diameter : 0.0281"
Break-Down Voltage : 5125V
TRIPLE-BUILD: Type: : 20 AWG Imideze
Conductor Diameter : 0.0321"
Insulating Coat 1 Build: 0.00129" (60%)
Insulating Coat 2 Build: 0.0005375" (25%)
Insulating Coat 3 Build: 0.0003225" (15%)
Total Insulation Build : 0.00215" (100%)
Magnet Wire Diameter : 0.0364"
Break-Down Voltage : 7200V
Type: : 21 AWG Imideze
Conductor Diameter : 0.02855"
Insulating Coat 1 Build: 0.001215" (60%)
Insulating Coat 2 Build: 0.00050625" (25%)
Insulating Coat 3 Build: 0.00030375" (15%)
Total Insulation Build : 0.002025" (100%)
Magnet Wire Diameter : 0.0326"
Break-Down Voltage : 7025V
Type: : 22 AWG Imideze
Conductor Diameter : 0.02535"
Insulating Coat 1 Build: 0.001185" (60%)
Insulating Coat 2 Build: 0.00049375" (25%)
Insulating Coat 3 Build: 0.00029625" (15%)
Total Insulation Build : 0.001975" (100%)
Magnet Wire Diameter : 0.0293"
Break-Down Voltage : 6850V
QUADRUPLE-BUILD: Type: : 20 AWG Imideze
Conductor Diameter : 0.0321"
Insulating Coat 1 Build: 0.001375" (50%)
Insulating Coat 2 Build: 0.0006875" (25%)
Insulating Coat 3 Build: 0.0004125" (15%)
Insulating Coat 4 Build: 0.000275" (10%)
Total Insulation Build : 0.00275" (100%)
Magnet Wire Diameter : 0.0376"
Break-Down Voltage : 7700V
Type: : 21 AWG Imideze
Conductor Diameter : 0.02855"
Insulating Coat 1 Build: 0.001605" (50%)
Insulating Coat 2 Build: 0.00066875" (25%)
Insulating Coat 3 Build: 0.00040125" (15%)
Insulating Coat 3 Build: 0.0002675" (10%)
Total Insulation Build : 0.002675" (100%)
Magnet Wire Diameter : 0.0339"
Break-Down Voltage : 7605V
Type: : 22 AWG Imideze
Conductor Diameter : 0.02535"
Insulating Coat 1 Build: 0.001545" (50%)
Insulating Coat 2 Build: 0.00064375" (25%)
Insulating Coat 3 Build: 0.00038625" (15%)
Insulating Coat 3 Build: 0.0002575" (10%)
Total Insulation Build : 0.002575" (100%)
Magnet Wire Diameter : 0.0305"
Break-Down Voltage : 7310V
Total Insulation Build = ( Magnet Wire Diameter - Conductor Diameter ) / 2
I guess my real question would be, Would the thicker build of the Triple and
Quandruple Imideze adversly effect the performance of the secondary coil?
Even in close winding the magnet wire you are left with a seperation (spacing)
of ( 2 * total build of the wire ) from conductor turn to conductor turn. Would
this amount of spacing between the turns in the secondary coil reduce it's
effeciency significantly?
Tim
o------------------------------------oo---------------------------------o
| Timothy A. Chandler || M.S.Physics/B.S.Chemistry |
o------------------------------------oo---------------------------------o
| NASA-Langley Research Center || George Mason University |
| Department of Energy || Department of Physics |
| FRT/Alpha - NASALaRC/DOE JRD/OPM || Department of Chemistry |
| CHOCT FR Designation #82749156/MG09|| OPC-EFC |
o------------------------------------oo---------------------------------o
| Private Email Address: tchand-at-slip-dot-net |
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