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Help with electric motor

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Adrian Hodgson - 25 Jun 2004 23:45 GMT
Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by GEC,
about 4 1/2 " dia and around 8 " long.

The motor is labeled as a compound mootor and has four (4) brushes, two are
connected to the case and the other two to a common field winding.

If anyone knows the motor is it possible to reverse its direction.  Normal
reversal of the external contacts will still rotate the motor in the same
direction as expected

TIA

Adrian
Prepair Ltd - 26 Jun 2004 08:39 GMT
>Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by GEC,
>about 4 1/2 " dia and around 8 " long.
[quoted text clipped - 9 lines]
>
>Adrian

You have to change the electrical relationship between the field and
the armature to reverse the direction of rotation, Adrian.

You will have to change that field winding around if possible.

--
Peter A Forbes
Prepair Ltd, Luton, UK
prepair@easynet.co.uk
http://www.prepair.co.uk
Adrian Hodgson - 26 Jun 2004 09:59 GMT
>>Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by
>>GEC, about 4 1/2 " dia and around 8 " long.
[quoted text clipped - 20 lines]
> prepair@easynet.co.uk
> http://www.prepair.co.uk

Hi Peter, I have two motors so time to play, Thanks.

Adrian
pentagrid@yahoo.com - 26 Jun 2004 09:04 GMT
>Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by GEC,
>about 4 1/2 " dia and around 8 " long.
[quoted text clipped - 9 lines]
>
>Adrian

        Disconnect link from the one pair of brushes to field
winding.

        Link same field connection to the other pair of brushes.

                                    Jim
Adrian Hodgson - 26 Jun 2004 10:06 GMT
>>Picked up a 12 Volt 22 amp motor (ebay) motor works fine it is made by
>>GEC, about 4 1/2 " dia and around 8 " long.
[quoted text clipped - 16 lines]
>
>                                      Jim

Without major surgary to the assembly his may be difficult as one set of
brushes are directly on case, but I will look in to it.

Although I wonder if it will make any difference.  The brushes are at 90
degrees to each other and are connected case, field, case, field. the same
result would be to rotate the brushes through 90 degrees with respect to
the field winding, now that I could try.

Cheers
adrian
156328 - 29 Dec 2005 18:14 GMT
I know how. :

--
15632
Peter A Forbes - 30 Dec 2005 01:13 GMT
>I know how. :)

Well, that's the answer, what was the question??

Peter
--
Peter & Rita Forbes
Email: diesel@easynet.co.uk
Web: http://www.oldengine.org/members/diesel
Andrew Mawson - 30 Dec 2005 08:13 GMT
> >I know how. :)
>
[quoted text clipped - 5 lines]
> Email: diesel@easynet.co.uk
> Web: http://www.oldengine.org/members/diesel

That's the problem with these trunkated posts - we seem to be having a
spate of them where people completely remove the context . . grouch
grouch . . and a load of "top posting" as well if they do leave some
context :(

AWEM
Peter Neill - 30 Dec 2005 10:26 GMT
<snipped a bit>
> That's the problem with these trunkated posts - we seem to be having a
> spate of them where people completely remove the context . . grouch
> grouch . . and a load of "top posting" as well if they do leave some
> context :(
>
> AWEM

I must admit that I use the google groups interface exclusively, and I
suspect those that top post and remove the context use this as well.
This is easily remedied, as google offers 2 options for responding. If
people just use the 'reply' link at the end of the post it will
automatically remove the content, which I agree is quite frustrating.

However, if those people were to first click the 'show options' link
beside the previous posters name, and THEN click the 'reply' link the
original content will be restored into the response, and can be edited
to suit. It is then just a matter of remembering the usenet etiquette
and posting at the end of this.
With apologies to those to whom this is the sucking eggs bit...

Peter
Charles Ping - 30 Dec 2005 09:57 GMT
>>I know how. :)
>
>Well, that's the answer, what was the question??
>
>Peter

The original post was back in June 2004. It can safely be ignored by
now. The way that web based access to newsgroups works does appear
muck things up.

Charles
Peter Parry - 30 Dec 2005 10:29 GMT
>Well, that's the answer, what was the question??

It apparently took some time for him to find the answer as the
original message was a year or so back.

Subject: Help with electric motor
Date: Fri, 25 Jun 2004 23:45:35 +0100
Message-ID: <cbia1l$d3u$1@thorium.cix.co.uk>
Reply-To: adrian@spamtraptimewarpuk.net

On the other hand the original posters timewarp address may be
working more effectively than they expected!!

Signature

Peter Parry.  
http://www.wpp.ltd.uk/

 
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