Anyone seeking electronics help?

Ditto even the expencive inverters when thay start to see multipule inductive loads thay have a tendancy to get a little bit squirly if your running a return pump and a skimmer not a big deal but you add in 300-1000 watts of a heater look out you can actually see with a scope the wave being cut off as well as the frequency shifting above or below 60hz or for our overseas friends 50hz

then if you throw metal halide lighting in the mix look out cwa ballast wouldent be so bad but there electronic replacements use frequencys to start the arc and sustain the voltages could spell disaster . i guess if you added some common mode chokes to the power leads you could greatly reduce the common mode feedback to the inverter but i would think you would want them 10+ feet away from eachother just to keep rf problems to a minumum

im not trying to be a downer but theres alot that goes into an idea sutch as this it can be done but it wont be cheap but neather is the livestock were trying to keep it may be worth the headache to try it out

this is where led and dc backup pumps would be great . i wish thay still made quality inverters without mosfets alot less frequency shift problems associated with them devices thay were less efficiant and a hole lot larger but by far way more stable on frequency as well as sine wave pureity

on an unrelated topic but there is still a huge debate in the audiophile community on mosfets and the concencis there there just not stable when thay get hot and i agree the scope dont lie

 

While I agree with what you're saying I have to ask what you guys think of my initial thoughts of a high dollar apc batt backup.

Minus the lights, I don't think it would ever be a good idea to plug mh lights into a backup.

 

the apc units are not to bad and thell do the job for a couple pumps i just worry about a high wattage heater it will take the battery out in a hurry but to go out on a limb a tank of a decent size loses a tempiture relitivly slowly in decent wether of course depending your location but raising the temps fast can lead to death so if you can forgo the heater you should be fine IMO

 

I wonder how a heater would affect one of the higher end APCs I personally don't run one at all even in the winter.

As I've stated before though, I doubt anyone is really willing to shell out 5 to 6 grand for one.

 

this thred has got me thinking im going to go look arround the net to see what i can find or possibly build . i always like to find a reason to fire up the soldering station

on a nother note standard car batterys indoors is not a good idea thay can create poisonous gasses and pose a fire explosion hazzard but AGM (Absorption Glass Mat) batterys are sealed but require low amprage charging system with automatic shut off so keep from sulfating the mat everything in life is always give and take electronics is no diffrent

 

well hell your dallas you probly wont ever need one but here in michagin heaters are a must especialy for me my tanks are in the basement

 

Agreed.

Always use non spill able lead acid batteries indoors, I keep mine in a metal box.

 

Not familiar with Agm, I use the batteries that I use for my business. 24amp hour lead acids. I also have equipment to store them properly.

 

wow, well i do have a question..
I could barely understand most of what has been said here LOL...

So my question is where can i get some Information on electricity and builds like this so that i can get this subject better. I find it quite facinating actually.

 

hi Gemini_2426. i would like to seek your input on what i am trying to achieve.
i am trying to make my own back up battery for 2 vortech mp40es. these pumps can run on 12v battery and i am thinking of making a DIY backup using these items:
NOCO Group U1 Battery Box: BatteryMart.com
12 Volt 35 Ah AGM Sealed Lead Acid Battery: BatteryMart.com
Battery Tender Jr 12 Volt 0.75 Amp Battery Charger: BatteryMart.com

and as for the wire schematics?
this is what i plan to do.
from the charger (battery tender), connect positive and negative respectively and for the connection for the pump will also be connected to positive negative respectively. any suggestions? thanks a million