| Topic: |
Science > Physics |
| User: |
"premji40" |
| Date: |
12 Mar 2007 09:01:40 AM |
| Object: |
Ampere Turn in Electromagnet |
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
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| User: "Helmut Wabnig .... .-- .- -... -. .. --. @ .- --- -. DOT .- -" |
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| Title: Re: Ampere Turn in Electromagnet |
12 Mar 2007 02:05:11 PM |
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On 12 Mar 2007 07:01:40 -0700, "premji40" <paramjit48@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
w.
--
soc.culture.austria answering service
proposals and complaints to:
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| User: "PD" |
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| Title: Re: Ampere Turn in Electromagnet |
12 Mar 2007 02:56:31 PM |
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On Mar 12, 2:05 pm, Helmut Wabnig <.... .-- .- -... -. .. --.
@ .- --- -. DOT .- -> wrote:
On 12 Mar 2007 07:01:40 -0700, "premji40" <paramji...@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
Note that it also depends on whether the iron is annealed or other
structural concerns. If steel is chosen instead, it depends on whether
it is "soft" steel (i.e., the carbon content).
It also depends on the shape of the pole piece of the electromagnet,
and the orientation of that pole piece with respect to the piece of
iron.
PD
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| User: "PD" |
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| Title: Re: Ampere Turn in Electromagnet |
12 Mar 2007 03:58:11 PM |
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On Mar 12, 2:05 pm, Helmut Wabnig <.... .-- .- -... -. .. --.
@ .- --- -. DOT .- -> wrote:
On 12 Mar 2007 07:01:40 -0700, "premji40" <paramji...@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
Note that it also depends on whether the iron is annealed or other
structural concerns. If steel is chosen instead, it depends on whether
it is "soft" steel (i.e., the carbon content).
It also depends on the shape of the pole piece of the electromagnet,
and the orientation of that pole piece with respect to the piece of
iron.
PD
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| User: "premji40" |
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| Title: Re: Ampere Turn in Electromagnet |
13 Mar 2007 05:38:58 AM |
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On Mar 13, 1:58 am, "PD" <TheDraperFam...@gmail.com> wrote:
On Mar 12, 2:05 pm, Helmut Wabnig <.... .-- .- -... -. .. --.
@ .- --- -. DOT .- -> wrote:
On 12 Mar 2007 07:01:40 -0700, "premji40" <paramji...@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
Note that it also depends on whether the iron is annealed or other
structural concerns. If steel is chosen instead, it depends on whether
it is "soft" steel (i.e., the carbon content).
It also depends on the shape of the pole piece of the electromagnet,
and the orientation of that pole piece with respect to the piece of
iron.
PD
Thanks your reply, the iron with little carbon contents and dimensions
are:
================ - 60mm thick 750x750mm top plate
| C|PPP|C | - 4Nos. 20mm thick side plates
530mm in height
| C|PPP|C |
| C|PPP|C |
--------------------------- - bottom plate SS-304 5mm thick
|P|- - - - 270 x 270mm x 530mm long pole
| - C 3 or 4 coil in series
| - operating 200mm weight pull
5kg iron piece max.
- 220Volt DC
Thank you
Regards
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| User: "premji40" |
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| Title: Re: Ampere Turn in Electromagnet |
13 Mar 2007 02:48:29 AM |
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On Mar 13, 1:58 am, "PD" <TheDraperFam...@gmail.com> wrote:
On Mar 12, 2:05 pm, Helmut Wabnig <.... .-- .- -... -. .. --.
@ .- --- -. DOT .- -> wrote:
On 12 Mar 2007 07:01:40 -0700, "premji40" <paramji...@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
Note that it also depends on whether the iron is annealed or other
structural concerns. If steel is chosen instead, it depends on whether
it is "soft" steel (i.e., the carbon content).
It also depends on the shape of the pole piece of the electromagnet,
and the orientation of that pole piece with respect to the piece of
iron.
PD
Thanks your reply, the iron with little carbon contents and dimensions
are:
================ - 60mm thick 750x750mm top plate
| C|PPP|C | - 4Nos. 20mm thick side plates 530mm in
height
| C|PPP|C |
| C|PPP|C |
------------------------------- - bottom plate SS-304 5mm thick
|P|- - - - 270 x 270mm x 530mm long pole
| - C 3 or 4 coil in series
| - operating 200mm weight pull 5kg
iron piece max.
- 220Volt DC
Thank you
Regards
.
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| User: "Helmut Wabnig .... .-- .- -... -. .. --. @ .- --- -. DOT .- -" |
|
| Title: Re: Ampere Turn in Electromagnet |
13 Mar 2007 11:38:43 AM |
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On 13 Mar 2007 00:48:29 -0700, "premji40" <paramjit48@gmail.com>
wrote:
Thanks your reply, the iron with little carbon contents and dimensions
are:
================ - 60mm thick 750x750mm top plate
| C|PPP|C | - 4Nos. 20mm thick side plates 530mm in
height
| C|PPP|C |
| C|PPP|C |
------------------------------- - bottom plate SS-304 5mm thick
|P|- - - - 270 x 270mm x 530mm long pole
| - C 3 or 4 coil in series
| - operating 200mm weight pull 5kg
iron piece max.
- 220Volt DC
they have them:
http://www.northwestmagnet.com/electromagnets-lifting-electromagnets.html
some infos about
http://en.wikipedia.org/wiki/Electromagnet
To lift junkyard scrap we want a magnet with about 1 Tesla,
which is about the maximum we can get using electro sheet metal iron.
One has to use empirical magnetization diagrams for the various
iron sheet metal qualities when designing magnetic machines.
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| User: "PD" |
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| Title: Re: Ampere Turn in Electromagnet |
13 Mar 2007 12:01:46 PM |
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On Mar 13, 2:48 am, "premji40" <paramji...@gmail.com> wrote:
On Mar 13, 1:58 am, "PD" <TheDraperFam...@gmail.com> wrote:
On Mar 12, 2:05 pm, Helmut Wabnig <.... .-- .- -... -. .. --.
@ .- --- -. DOT .- -> wrote:
On 12 Mar 2007 07:01:40 -0700, "premji40" <paramji...@gmail.com>
wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
How large a piece?
A Paperclip? Or do you want to lift a T37 Russian Tank?
Learn to ask meaningful questions.
Note that it also depends on whether the iron is annealed or other
structural concerns. If steel is chosen instead, it depends on whether
it is "soft" steel (i.e., the carbon content).
It also depends on the shape of the pole piece of the electromagnet,
and the orientation of that pole piece with respect to the piece of
iron.
PD
Thanks your reply, the iron with little carbon contents and dimensions
are:
================ - 60mm thick 750x750mm top plate
| C|PPP|C | - 4Nos. 20mm thick side plates 530mm in
height
| C|PPP|C |
| C|PPP|C |
------------------------------- - bottom plate SS-304 5mm thick
|P|- - - - 270 x 270mm x 530mm long pole
| - C 3 or 4 coil in series
| - operating 200mm weight pull 5kg
iron piece max.
- 220Volt DC
Thank you
Regards- Hide quoted text -
- Show quoted text -
Yeah, unfortunately, this is not enough information. The business of
magnet design is actually rather complicated, and the attraction of
pieces of iron depends on how the piece of iron is oriented (it's much
easier to pick up an I-beam from a contact point on its side than from
a contact point on its end, for instance), and the shape of the
*gradient* of the field. There are software packages that are designed
to calculate field shapes, depending on the material and shape of the
poles -- POISSON, Ingenta, PREM, etc -- that are usually based on
finite element meshes (FEMs).
The field that is generated per ampere is something that is
constrained by the hysteresis curves of the material of both the pole
piece and the piece of iron you're trying to pick up, and you don't
have enough information for that.
http://magnet.atp.tuwien.ac.at/scholz/projects/report/node9.html
For your immediate need, the best thing you can do is use a PS and
some coils and test it. One thing that I noticed is that you've
specified a voltage for the PS but not any current control. If you
don't know what your current control is, you have a serious fire
hazard. I once built a 2T toroidal magnet, and the conductors were an
inch in diameter and had a hole through the middle to pass coolant to
keep the coils from melting into a sizable pool of copper.
PD
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| User: "jcon" |
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| Title: Re: Ampere Turn in Electromagnet |
13 Mar 2007 08:23:37 AM |
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On Mar 12, 9:01 am, "premji40" <paramji...@gmail.com> wrote:
I want to know ampere turn formula for using in electromagnet and the
electromagnet will pickup iron piece from a distance which can be
100mm/200mm or any distance and design on 220 V DC.
How I know that the magnet are 220 volt dc or if the same will design
on 110 V DC throu the ampere turn formula.
Although it's the most familiar, ordinary magnetic attraction is
one of the more complex magnetic phenomena to understand. There
is no simple formula. There are useful approximations, but first
you will need to supply a few more details, such as some
details about the construction of the electromagnet, and the
relative size of the object being lifted.
-jc
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