Unless your equipment is tolerant of voltage swings, you will still 
probably want a DC-DC regulator, but that will likely be more efficient 
than a 12/24volt to 120 volt inverter.

John


Leon D. Zetekoff, NCE wrote:
> Hi Guys...I'd steer away from inverters since they soak up a lot of 
> power. You might want to look at some solar stuff with some of the AGM 
> batteries Marlon mentioned in another thread. Run everything @ 24V is 
> good that way you don't need any dc-dc converters.
>
> Leon
>
> * os10ru...@gmail.com wrote, On 8/2/2009 3:27 PM:
>> You might want something like an inverter (Xantrex for example) 
>> which  includes a DC to AC inverter, battery charger, and automatic 
>> transfer  switch. Add the batteries and you're done.
>>
>> Greg
>>
>> On Aug 2, 2009, at 2:38 PM, Jerry Richardson wrote:
>>
>>  
>>> Thank you,
>>> That is very good advice. After some research, I'm leaning toward a  
>>> UPS.
>>>
>>> A pair of good AGM batteries and charge controller will cost less  
>>> and be far less maintainence. Then I'd just run the CMM off the  
>>> batteries @ 24VDC.
>>>
>>> Thanks again
>>> Jerry
>>>
>>>
>>> -----Original Message-----
>>> From: wireless-boun...@wispa.org 
>>> [mailto:wireless-boun...@wispa.org]  On Behalf Of Gary Garrett
>>> Sent: Sunday, August 02, 2009 11:59 AM
>>> To: WISPA General List
>>> Subject: Re: [WISPA] Small auto start generator
>>>
>>> Small generators do not auto start very reliably.
>>> When cold or dampness causes hard starting the starter can overheat  
>>> and
>>> burn out. Generally you need an electric choke to start gas engines,
>>> propane can "flood" and need to rest before trying again, diesel 
>>> can  be
>>> REAL hard to start when cold. Auto starters can not adapt to changing
>>> conditions.
>>> Our best generator is a Propane Ford inline 6 cyl. 25 KW 3 phase.  
>>> (1955
>>> Model)
>>> The monitor cranks for 1 min then rests and tries 3 times.  
>>> Everything is
>>> adjustable. It knows to stop cranking when it sees AC voltage from the
>>> Gen. so the motor over runs the starter for just a few seconds. Only a
>>> huge starter motor can take this abuse and last unattended.
>>>
>>> You may be money ahead to find out why the existing generator is not
>>> starting and get it fixed.
>>>
>>> Jerry Richardson wrote:
>>>    
>>>> We rent on a tower that is suspposed to have gen-set backup but it  
>>>> does not start reliably.
>>>>
>>>> Any recommendations on a small auto-start generator? We only need  
>>>> to power a CMMmicro - ~100watts.
>>>>
>>>> Thanks
>>>>
>>>> __________________________________
>>>> Jerry Richardson
>>>> airCloud Communications
>>>>       
> ------------------------------------------------------------------------
>
>
> No virus found in this outgoing message.
> Checked by AVG - www.avg.com 
> Version: 8.5.406 / Virus Database: 270.13.42/2278 - Release Date: 08/02/09 
> 17:56:00
>   
> ------------------------------------------------------------------------
>
>
>
> --------------------------------------------------------------------------------
> WISPA Wants You! Join today!
> http://signup.wispa.org/
> --------------------------------------------------------------------------------
>  
> WISPA Wireless List: wireless@wispa.org
>
> Subscribe/Unsubscribe:
> http://lists.wispa.org/mailman/listinfo/wireless
>
> Archives: http://lists.wispa.org/pipermail/wireless/



--------------------------------------------------------------------------------
WISPA Wants You! Join today!
http://signup.wispa.org/
--------------------------------------------------------------------------------
 
WISPA Wireless List: wireless@wispa.org

Subscribe/Unsubscribe:
http://lists.wispa.org/mailman/listinfo/wireless

Archives: http://lists.wispa.org/pipermail/wireless/

Reply via email to