A lot of power substation control equipment is high voltage DC (100-300 VDC).
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On Thu, Aug 25, 2016 at 1:14 PM -0600, "Adam Moffett" <dmmoff...@gmail.com>
wrote:
I think it's more like you have a 110 VDC power supply for the motors in your
machine and you want to convert that to lower voltage for electronic controls.
Variable input voltage is good because when the motors kick on you might see
voltage jump around.
17 years ago I was a draftsman drawing wiring diagrams for process equipment.
Pretty sure I've seen something like that.
------ Original Message ------
From: "Eric Kuhnke" <eric.kuh...@gmail.com>
To: "af@afmug.com" <af@afmug.com>
Sent: 8/25/2016 3:08:14 PM
Subject: Re: [AFMUG] Traco competition for Mean Well RSD?
I don't think it is a misprint, I have seen other high-voltage input DC:DC
converters (you can find some from Sager/Powergate), but they're much rarer
than things which have a top-end input voltage maximum of around 76VDC...
Really curious what sort of weird industrial applications are relatively low
wattage at a couple hundred watts load for a device, and need that kind of
input.
On Thu, Aug 25, 2016 at 11:59 AM, Bill Prince <part15...@gmail.com> wrote:
I wonder if that is a misprint. I know a lot of power supplies that actually
"don't care" if the input is AC or DC. So inputting 120 VAC works more-or-less
the same are 120VDC. Off-line switching power supplies were a great innovation.
bp
<part15sbs{at}gmail{dot}com>
On 8/25/2016 11:35 AM, Eric Kuhnke wrote:
I know such things exist but have never encountered them in person, where would
you have 140 or 150VDC power?
On Thu, Aug 25, 2016 at 11:32 AM, Ken Hohhof <af...@kwisp.com> wrote:
https://psui.com/product/teq-300wir/
https://psui.com/wp-content/uploads/products/Traco%20Power/DataSheets/teq300wir.pdf
Unfortunately the prices (even assuming a discount) look prohibitive.
