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Date: Thu, 22 Sep 2011 16:23:26 -0400
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From: Warren Ziegler <wd2xgj@gmail.com>
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: Turbine magnets
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If these were DC machines and interconnected by high current DC lines
one could imagine a substantial magnetic field, but I believe that
these machines produce AC either directly or through an inverter.


--=20
73 Warren K2ORS
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XGJ
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WD2XSH/23
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XEB/2
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 WE2XGR/1




On Thu, Sep 22, 2011 at 4:15 PM, Andy Talbot <andy.g4jnt@gmail.com> wrote:
> Surely if the magnetic field leaked that much, the generators would suffe=
r
> efficiency.
> They are designed as closed magnetic circuits, with all the field lines
> closely confined in iron, with small air gaps
>
> Andy
> 'jnt
>
>
> On 22 September 2011 21:07, Hugh M0WYE <m0wye@radiouk.com> wrote:
>>
>> Seems unlikely that the magnetism would reach that far to me - the
>> magnetic field would be no different to any other large generating set -
>> they are just an ordinary alternator driven through a gearbox.
>> If they did affect magnetic compasses you would have thought that the
>> place you would really notice it would be around the coast, with small b=
oats
>> sailing in amongst them.
>> Although they look as if they are turning slowly, they can't do many rpm
>> before the tips of the blades go supersonic, as the blades are many 10s =
of
>> metres long.
>> Over what distance did you notice the magnetic=A0effect? perhaps I could=
 get
>> down to the ones on Romney Marsh, here in Kent and see if=A0they have an=
y
>> effect on a compass needle.
>>
>> The moving blades can affect radio reception for people living nearby,
>> although I've not noticed this myself.
>>
>> 73
>> Hugh M0WYE
>>
>> ----- Original Message -----
>> From: mal hamilton
>> To: rsgb
>> Sent: Thursday, September 22, 2011 5:09 PM
>> Subject: LF: Turbine magnets
>> Great for LF!!!!!!!!!!!!!
>>
>> Experience
>>
>> Driving to Gleneagles in Scotland last weekend my car magnetic compass w=
as
>> reading backwards and erratic and I wondered why.
>> The hills es mountain tops are covered with WIND TURBINES, =A0hugh beast=
s
>> and only turning slowly, cannot be producing much electric.
>> however thinking about it I have concluded that the strong=A0MAGNETS in =
the
>> turbines=A0must=A0effect a magnetic compass, =A0possible aeroplanes as w=
ell except
>> they are flying very=A0high, might also have an influence on GPS=A0frequ=
encies
>> and navigation in these areas
>> I must say these hugh Monsters strewn all across the Scottish mountain
>> tops and countryside=A0spoils the scenery.
>> =A0de Mal/G3KEV
>>
>