Split it [RE-wrenches]

[jay peltz]

HI S,

I wonder how long the Tformer based inverter will be around?  I know that Trace
bought a company from southern cal a year  or two ago that was only doing high end
hifrequency designs.  What do you think?  To install the Statpower is so easy and
nice ( small, light etc).

I'd love to hear your and anyone elses of course views.

Jay
Jay Peltz
Peltz Power

"R. Sparks Scott" wrote:

>         Carl;
>
>         I'll venture a reply here, since no one else has yet.
>
>         Splitting an SW into two chassis is impractical for the following reason:
>         Most of the weight of these inverters is the three transformers inside,
> heavy iron-core copper-wound monsters that could survive most anything, and
> probably have a failure rate of zero in practical terms. The AC side of
> these transformers are simply wired in series, and that's your AC in/out.
> The DC side is where the MOSFET devices connect. There are multiple
> connections between the MOSFET's and the transformers, something like 18 if
> I remember right. All of these connections would need to be run through a
> connector to split the chassis. This connector would be a major weak point,
> as it would add mechanical strain and electrical resistance in the very
> worst place imaginable, the high-current, low-voltage circuit of the
> inverter. Additional conductors for transformer temperature, etc would also
> be required.
>         A more practical solution has already been discussed in part, which would
> be to have Trace Factory Certified techs (like yourself) who could swap out
> the defective MOSFET devices (as a unit on the PC board), without having to
> ship out the entire box. Of course, this might require an installer who
> wanted to do the certification program to know a lot more about how the
> inverters work, how to enter and manipulate the 'tech menu' at the end of
> the setup menus, etc, but overall, it would be more efficient to just send
> the defective board back to Trace for evaluation/repair/replacement instead
> of the whole cabinet. Having a spare MOSFET board on hand might be a bit
> expensive for the average installer, but Trace could offer an exchange
> program and/or 24 hour turn-around repair for boards in or out of warranty
> (charges may apply). This is how it works in broadcast. Most manufacturers
> have programs in place to get you back on the air as quickly as possible,
> without having to send your entire transmitting plant into the factory.
>         So, splitting the chassis isn't a practical solution, but since an
> inverter is only a bit more complicated than a modern washing machine,
> there are other, well-established routines for taking care of failures in
> an expedient manner.
>
>         -S
>
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To unsubscribe send a message to: 
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To check out the other RE-Wrench participants:
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 www.homepower.com

For info contact list moderator by email:
 michael.welch at homepower.com

____________________________________________________________
T O P I C A  -- Learn More. Surf Less. 
Newsletters, Tips and Discussions on Topics You Choose.
http://www.topica.com/partner/tag01