Hybrid Generator/Inverter System **Newbie**

JBish130
JBish130 Registered Users Posts: 8 ✭✭
Hi, this is my first post.

I've just installed a Xantrex 6048 inverter and am using (4) Trojan 8D AGM batteries.

I did this installation myself, it was fairly simple, though I claim no knowledge of these systems. I consider myself quite ignorant; so please excuse me if my question sounds stupid.

On the SCP panel, there are a lot of options, some I don't understand.

There is a setting for Amp Hour for the batteries I am using. I looked at the spec. sheet http://www.trojanbattery.com/pdf/datasheets/8DAGM_Trojan_Data_Sheets.pdf and don't quite understand what I'm supposed to enter in this field.

The setting for Charge Cycle has three options: 2 Stage Float, 3 stage, and CVCC. I assume it should be set for 2 stage float, but I don't know for sure.

I tried calling Schneider customer service, but they are closed for the weekend.

Any help on these questions would be greatly appreciated!

Comments

  • AuricTech
    AuricTech Solar Expert Posts: 140 ✭✭
    Re: Hybrid Generator/Inverter System **Newbie**

    Use the 20-hour rating for Amp-hours. In this case, you would use 230Ah. Note that Amp-hours don't add together when you wire batteries in series.
  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    Re: Hybrid Generator/Inverter System **Newbie**

    BEWARE !! With AGM batteries, the charge profile is very specific. if you go over the prescribed voltage, you will damage the batteries in an hour.

    The battery Mfg will have a datasheet or web page for the voltages for Float service, or Cyclic service.

    Generally, BULK and ABSORB settings are the same voltage, the absorb timer starts when the required voltage is attained, and absorb holds the voltage there, as the amps taper off. Then, the voltage is cut back to the Float voltage, in a 48V system that will be several volts below the absorb.

    With AGM, there is NO equalize, so that cycle should be disabled.

    With a small battery bank, you will also need to use the SCP to set the max charge rate, or it can try to push 80 amps into the battery, which is not going to work well for very long. Also with a small bank, you should limit your AC loads to about 2KW, (2,000 watts) because the battery bank will get stressed trying to provide the peaks of the 60 cycle frequency under higher loads.
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