[Fourlanders] engineering challenge

[Bill Pence]

I've asked the manufacturer about the overload, but no reply yet.

Also, I've been told there is a power setting that should solve this.

there is a setting for 1/2 power, and then the tech tells to double the
time...
so we only need 50A for 5 seconds (and this is a MAX value, it will
generally be les than 0.25 seconds...)
which the generator should handle this.

On Wed, Sep 14, 2016 at 4:08 PM, Tom McElroy <tommcelroy.mail at gmail.com>
wrote:

> This is a fun thing to think about.  A big flywheel comes to mind.
>
> Some guy took out a patent on using suit-case-sized capacitor banks to
> supply the peak impulse power to the tube:
> https://www.google.com/patents/US20140056411
>
> But gee whiz, when you bottle up *that* much energy in a cap,or a flywheel
> watch out!
>
> If the X-ray machine control circuits aren't too sensitive to voltage sag,
> maybe you could get away with heavier AC mains wire, and big slo-blow!
>
> 73
> Tom
> W4SDR
>
>
>
> On Wed, Sep 14, 2016 at 12:35 PM, Bill Pence <pence.bill at gmail.com> wrote:
>
>> yes, this 100A at 240v for 2.5 sec is the highest setting.
>> i figure it will not be used often.
>>
>> I do not have info on 'lesser" settings.
>> I am trying to fit the max, and am getting more
>> info on the machine,
>>
>> On Wed, Sep 14, 2016 at 12:17 PM, ww8rr <ww8rr at charter.net> wrote:
>>
>>> Oh yes...and i forgot to add that the specs of the xray machine (like
>>> most AC usage specs) most likely are stating the absolute worst case power
>>> requirement and most generally consume power at a more conservative level.
>>>
>>> Ron
>>>
>>> From my Samsung Galaxy S4
>>>
>>>
>>> -------- Original message --------
>>> From: whensley11 at comcast.net
>>> Date: 09/14/2016 11:41 AM (GMT-05:00)
>>> To: Fourlanders <fourlanders at contesting.com>
>>> Subject: Re: [Fourlanders] engineering challenge
>>>
>>> I wrote to Bill directly, but will post to the group.
>>> "Momentary" power is specified with some generator units.
>>>
>>> Kohler's diesel 10 kW gen set supplied 300% rated current for up to 10
>>> seconds.
>>>
>>> Generac did not give a spec.
>>>
>>> So.... your mileage varies!
>>>
>>>
>>> Kim
>>>
>>> _______________________________________________
>>> Fourlanders mailing list
>>> Fourlanders at contesting.com
>>> http://lists.contesting.com/mailman/listinfo/fourlanders
>>>
>>>
>>
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>>
>>
>
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