[RE-wrenches] inverters/ generators and noise

[robert ellison]

Seems that i ran it up till the charger was happy and it was not over 62 or
63 HZ. Some people on the list would scream but I never had a problem doing
it and never blew anything up. Set it for 62 or 63 unloaded and see where it
settles with a full charger load on it. Some will not increase, just put it
back where it was.
I always figured that low was worse than high. Not a good idea to crank up a
Coleman or other cheap generator and unload it fast. I know people that have
blown capacitors when they do that.
I have not had to do that with the Magnum inverter / chargers, they seem to
be happy on less amps ac input Heart Interface (dating myself, remember
them?), Trace and Outback seemed to like a little frequency increase.

Later,
Bob.

On Thu, Nov 20, 2008 at 11:10 AM, jay peltz <jay at asis.com> wrote:

> Hi Bob,
> Do you have any numbers as to what the HZ where or where you think it
> worked best?
>
> thanks,
>
> jay
>
> peltz power
>
>  On Nov 20, 2008, at 3:38 AM, robert ellison wrote:
>
>  Probably due to the load of the charger, try changing the rpm a little
> (higher) if you can. Might help. I have had stoves that wouldn't light under
> full charger load. They did better at a somewhat higher rmp (frequency)
>
> Bob
>
> On Thu, Nov 20, 2008 at 12:12 AM, jay peltz <jay at asis.com> wrote:
>
>> Hi All,
>>
>> here is along those same lines a question about line noise.
>>
>>
>> System 15kw diesel generator
>>
>> 4 stack outback at 24v   120v/240vac
>>
>> 3000 amp hr industrial batteries.
>>
>> when genny running, 59.5-60 hz
>> voltage 122/244
>>
>>
>> Symptoms.
>>
>> when charging there is some buzzing on some electrical equipment in the
>> house.  Stove pizeo won't lite, transformer on furnace runs hot, Fridge
>> makes more noise.
>> Seems to get worse at end of charge cycle.
>>
>>
>> Now, with inverter only,  no noise, humm, buzz etc.
>>
>> With Genny only no buzz, humm, etc.
>>
>>
>> Any advice?
>>
>> thanks,
>>
>> jay
>>
>> peltz power
>>
>>
>>
>>
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