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 > > * [email protected] 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: [email protected] >>> [mailto:[email protected]] 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: [email protected] > > 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: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
