Groups > linux.debian.user > #162052

Re: Need a calculator that knows about coulombs

From	David Christensen <dpchrist@holgerdanske.com>
Newsgroups	linux.debian.user
Subject	Re: Need a calculator that knows about coulombs
Date	2015-12-23 19:30 +0100
Message-ID	<qIWkG-4Fa-9@gated-at.bofh.it> (permalink)
References	<qIGfT-35d-13@gated-at.bofh.it> <qIGIV-3eA-3@gated-at.bofh.it> <qIH2h-3Ai-7@gated-at.bofh.it> <qIOwO-8gG-23@gated-at.bofh.it>
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On 12/23/2015 02:09 AM, Gene Heskett wrote:
> Ahh, but its being fed to a voltage-doubler with schottky diodes ...
> The PSU has a quite high
> capacitance input filter, and without this soft start timed power up,
> needs a 30 amp breaker in the service in order for the breaker to
> withstand the power up event. NEC says I can't service a duplex with
> more than a 15 amp breaker.  The actual draw, once powered up, doesn't
> exceed 15 amps even with a vacuum cleaner being powered by a similar
> circuit enabled that is plugged into this same 4-plex.
> All part of a CNC milling machine setup. ...

So, you want to connect a 120 VAC, 30 A CNC milling machine and a 120 
VAC, unknown current vacuum cleaner to a single 120 V 15 A branch circuit.

I suppose you could read a power electronics book, and design and build 
a device that accepts 120 VAC, 15 A steady-state input and provides 120 
VAC, 15 A steady-state output with the ability to output much more 
current for short periods.  Such a product may already exist.  If not, 
you might be able to make and sell them.

But, the KISS solution is obvious -- install a 30 ampere circuit 
breaker, wiring, and receptacle for the CNC machine (or hire an 
electrician to do so).

David

Thread

Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 02:20 +0100
  Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 02:40 +0100
  Re: Need a calculator that knows about coulombs Jimmy Johnson <jimmyjhn@gmail.com> - 2015-12-23 02:40 +0100
    Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 02:50 +0100
      Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-23 03:10 +0100
        Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 11:10 +0100
          Re: Need a calculator that knows about coulombs Joe <joe@jretrading.com> - 2015-12-23 12:50 +0100
            Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 16:10 +0100
          Re: Need a calculator that knows about coulombs David Christensen <dpchrist@holgerdanske.com> - 2015-12-23 19:30 +0100
            Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-23 20:10 +0100
            Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 20:20 +0100
              Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-23 20:40 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 22:20 +0100
                Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-24 01:30 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 02:40 +0100
                Re: Need a calculator that knows about coulombs Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-24 02:10 +0100
                Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-24 02:40 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 03:00 +0100
                Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-24 03:20 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 04:50 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 02:50 +0100
                Re: Need a calculator that knows about coulombs Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-24 03:10 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 04:40 +0100
                Re: Need a calculator that knows about coulombs Lisi Reisz <lisi.reisz@gmail.com> - 2015-12-24 12:30 +0100
                Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 16:40 +0100
        Re: Need a calculator that knows about coulombs Gary Roach <gary719_list1@verizon.net> - 2015-12-24 01:00 +0100
          Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-24 01:40 +0100
            Re: Need a calculator that knows about coulombs Anders Andersson <pipatron@gmail.com> - 2015-12-24 01:40 +0100
          Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-24 02:40 +0100
      Re: Need a calculator that knows about coulombs David Christensen <dpchrist@holgerdanske.com> - 2015-12-23 03:20 +0100
        Re: Need a calculator that knows about coulombs Bob Bernstein <poobah@ruptured-duck.com> - 2015-12-23 04:40 +0100
          Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 11:50 +0100
        Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 11:40 +0100
          Re: Need a calculator that knows about coulombs David Christensen <dpchrist@holgerdanske.com> - 2015-12-23 19:40 +0100
  Re: Need a calculator that knows about coulombs rlharris@oplink.net - 2015-12-23 02:40 +0100
  Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-23 03:00 +0100
    Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 11:40 +0100
  Re: Need a calculator that knows about coulombs Charlie Kravetz <cjk@teamcharliesangels.com> - 2015-12-23 04:50 +0100
  Re: Need a calculator that knows about coulombs Jörg-Volker Peetz <jvpeetz@web.de> - 2015-12-23 15:00 +0100
    Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-23 16:20 +0100
      Re: Need a calculator that knows about coulombs Jörg-Volker Peetz <jvpeetz@web.de> - 2015-12-28 10:40 +0100
        Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-28 14:00 +0100
          Re: Need a calculator that knows about coulombs John Hasler <jhasler@newsguy.com> - 2015-12-28 18:40 +0100
            Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-28 21:00 +0100
  Re: Need a calculator that knows about coulombs Gener Badenas <gener.ong.badenas@gmail.com> - 2015-12-28 08:10 +0100
    Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-28 13:20 +0100
      Re: Need a calculator that knows about coulombs Joel Rees <joel.rees@gmail.com> - 2015-12-29 09:40 +0100
        Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-29 10:50 +0100
      Re: Need a calculator that knows about coulombs Joel Rees <joel.rees@gmail.com> - 2015-12-29 12:00 +0100
        Re: Need a calculator that knows about coulombs Joel Rees <joel.rees@gmail.com> - 2015-12-29 12:10 +0100
          Re: Need a calculator that knows about coulombs Gene Heskett <gheskett@shentel.net> - 2015-12-29 16:50 +0100
    Re: Need a calculator that knows about coulombs ken <gebser@mousecar.com> - 2016-01-03 12:00 +0100

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