Re: LTR vs Resonance Pri cap...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Daniel,

The archives are a bear!  We tried to find a way to work them better a few 
months ago but I don't think anyone figured a better way.

LTR capacitors will not go over voltage and blow the NST.  Good well 
adjusted safety gaps should prevent NST failure with a resonant system, but 
once in awhile things just don't go right...  So from a blowing NST and 
caps point of view, LTR caps are far safer then resonant systems.

LTR caps should give the best power throughput and streamer 
length.  Resonant systems can come close, but their higher primary currents 
have higher losses.  LTR systems tend to have lower currents and 
frequencies that help reduce losses.

Sync gap LTR systems are especially powerful.  They literally suck extra 
power out of the NST.

Personally, if working with NSTs, I would not consider anything but LTR 
systems.  Pole transformer systems or others that have adjustable charging 
current and lots of power to spare can get away with just about any cap 
size and the advantages decrease in those cases.

Cheers,

         Terry


At 04:53 PM 11/4/2002 -0600, you wrote:

>All;
>
>I've been researching the list archives until I've become cross-eyed. Would
>anyone care to, briefly, describe the pros & cons of selecting a LTR
>primary capacitor vs a value that is resonate with the main power
>transformer's secondary? LTR seems to be the general consensus of the list
>but why?
>
>Regards,
>
>Daniel Hess