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Voltage/Length -> reactive losses
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From: Thornton, Russ #CSR2000 [SMTP:ThorntoR-at-rc.pafb.af.mil]
Sent: Tuesday, February 03, 1998 7:34 AM
To: 'Tesla discussion Group'
Subject: RE: Voltage/Length -> reactive losses
Kind of analogous to the tree in the forest question.
If there is no sensor to detect and a field collapses does it make a
deflection?
I am so sorry, I just couldn't help myself!
Russ Thornton
CSR 2040,
Building 989, Rm. A1-N20
Phone: (407) 494-6430
Email: thorntor-at-rc.pafb.af.mil
>----------
>From: Tesla List[SMTP:tesla-at-pupman-dot-com]
>Sent: Monday, February 02, 1998 11:55 PM
>To: 'Tesla List'
>Subject: Voltage/Length -> reactive losses
>
>
>----------
>From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>Sent: Sunday, February 01, 1998 4:44 PM
>To: Tesla List
>Subject: Re: Voltage/Length -> reactive losses
>
>John,
> I trust this enquiry was made tongue-in-cheek?
>
>> From: John H. Couture [SMTP:couturejh-at-worldnet.att-dot-net]
>> Sent: Friday, January 30, 1998 6:51 PM
>> To: Tesla List
>> Subject: Re: Voltage/Length -> reactive losses
>>
>> At 11:11 PM 1/29/98 -0600, you wrote:
>> >
>> >----------
>> >From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>> >Sent: Thursday, January 29, 1998 2:45 PM
>> >To: Tesla List
>> >Subject: Re: Voltage/Length -> reactive losses
>> >
>> >Hi Jim,
>> >
>> >> From: Jim Monte [SMTP:JDM95003-at-UCONNVM.UCONN.EDU]
>> >> Sent: Wednesday, January 28, 1998 11:46 AM
>> >> To: tesla-at-pupman-dot-com
>> >> Subject: Re: Voltage/Length -> reactive losses
>> >>
>> >>
>> >> >From: John H. Couture [SMTP:couturejh-at-worldnet.att-dot-net]
>> >> >Sent: Wednesday, January 28, 1998 2:17 AM
>> >> >To: Tesla List
>> >> >Subject: Re: Voltage/Length (fwd)
>> >> >
>> >> < big snip >
>> >> > Note that energy and power transfer between the pri and sec circuits
>>is
>> >> >always 100 percent (Skilling). This is easily understood. The transfer
>>is by
>> >> >induction and there are no losses in inductive reactance. Also, there
>>are no
>> >> >equations for losses in inductive or capacitive reactances. The coil
>> >> >resistance losses and the capacitor dissipation losses are all Ohms law
>>(not
>> >> >reactive) losses.
>> >>
>> >> Unfortunately, any loss is still a loss and will reduce total energy
>> >> available to do other things. Talking about "reactive losses",
>> >> how about energy lost to stray coupling to other objects? For
>> >> example, has anyone looked into losses due to coupling of the
>> >> primary to a good earth ground as a function of primary distance
>> >> above ground? Is this negligible?
>> >
>> >You are quite right. It is not negligible. You can easily measure a
>> >change in Q if you move a good primary further away from the floor.
>> >Your note on the losses is appreciated. I have tried to make the same
>> >point on other occasions.
>> >
>> >Malcolm
>> ><snip>
>> --------------------------------------------------------
>>
>> Malcolm, All -
>>
>> Can you give us an example of how you calculate the reactive losses if
>>for
>> example the Q varies from 100 to 50?
>>
>> John Couture
>
>As you well know, a pure reactance does not lose power. That is a far
>cry from saying that "all power is transferred from primary to
>secondary because the transfer is by reactive mechanisms"!!
>
>Q - is there a current flowing in the primary wiring while the
> magnetic field it is producing is changing?
>A - Yes.
>
>Q - So there is an I^2.R loss associated with the primary wiring
> during this period?
>A - Yes.
>
>Q - is there an induced current in the secondary wiring during this
> period?
>A - Yes.
>
>Q - is there an I^2.R loss associated with the secondary wiring
> during this period?
>A - Yes.
>
>Q - is the primary coupled to nothing other than the secondary?
>A - No.
>
>Q - Can you prove this?
>A - Yes. I can detect currents flowing in other conductors in
> proximity to the system. I can also detect E-fields using a
> meagre scope probe positioned many feet away. My neighbours don't
> like it either.
>
>Q - So power is being lost *during* the pri-sec transfer?
>A - Yes.
>
>Q - So does all primary power reach the secondary?
>A - No.
>
>QED.
>Malcolm
>
>
>