Re: IGBT long life at 3X rated Ip?? Re: 15kva 14.4 kV Transformer.. (fwd)

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Moderated and approved by: Gerry Reynolds <greynolds@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sun, 24 Dec 2006 08:35:04 -0700
From: resonance <resonance@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: IGBT long life at 3X rated Ip??  Re: 15kva 14.4 kV  Transformer..
    (fwd)


Automation Direct has a large selection of PLC controllers --- some under 
$200.   These work great for control applications.

Dr. Resonance



>
> PLC's can do whatever you want. Their basically a stamp controller with
> much of the same features. Their used for automation control. I use
> Twido controllers (IDEC designed and built this line but I buy from
> SquareD wo puts their name on it and also Telemecanique, although this
> particular series isn't their design).
> http://www.us.telemecanique.com/products/Automation/Programmable_Controllers/Twido/index.html
>
> Documentation is on the left side of the page. The above page shows two
> basic types. The difference is ribbon cable (transistor inputs and
> outputs) and the other is a screw terminal connection. The screw
> terminal style also has relay outputs if wanted. I've got both types.
> Just simple ladder logic and presto.
>
> Take care,
> Bart