7S = 30.3V * 7 = 212.1 Volt
2P = 2 * 8.85A = 17.0 amp
Voltage drop: 3.91
Voltage drop percentage: 1.84%
Voltage at the end: 208.09
—---------------
6S = 30.3V * 6 = 181.8
1P = 1 * 8.85A = 8.85
Voltage drop: 2.03
Voltage drop percentage: 1.12%
Voltage at the end...
Yes the subpanel is fed on the bus bars. Its a 125 amp panel. The inverter is fed from a 40amp breaker. Now that you mention it I want to feed my new subpanel next to the inverter by the bus bars due to the fact it only has 8 spaces. I thought I needed to feed the new panel by a 240 V...
I was going to go overhead in the air on my fence and then into the attic space which has paper insulation. I was wondering if I would need to put the solar wire in conduit since my insulation is paper. Im not sure if that is at risk of heating or sparking in odd circumstances.
I use 240 / 220 off breakers in my Grid Subpanel to reduce the amp draw. I assume reducing amp draw on a solar supplied subpanel is the same benefit of a subpanel from an inverter. Are there other benefits of 240v split phase on a solar supplied subpanel?
I was under the impression under load was when I was pulling power from the power source. Like a motor running on AC power. Ex: when the motor is running its under load. So does this mean that a solar power in the sun is considered under load? I know there is power is available when the sun...
The MPP manual says to use 4 AWG for the AC Input and Output. I assume that is because they assume I will be building a 100 amp system. I have 1 inverter now. I have 6 AWG running from the main panel to my sub panel. I already ran a 6 AWG run off that sub panel for a second sub sub panel...
This video by Ian shows runnung the LV6548 batteryless. I have the 6548V, checked the manual and I cant find an example running without a battery. I thought I saw a video on Youtube showing the need to charge the inverter with two wires before use. Anyone familiar with this? Pre-charge the...
Any experience with MPP Solar SUB mode. Solar then utility?
My setup is no batteries, one LV6548V 12 panels 6S2P into one MPPT. I am looking at the programming menu: setting
The inverter menu does show SUB mode and that is the setting I selected. The screen shows the Grid Icon and by pass...
I turned off AC power and the inverter turned off. I took a reading with my multimeter from the PV array DC Isolator output and its 204.5 volts 6P2S is my array setup. Bad Connectors in the PV input on the inverter?
I just tested the cables from the PV array isolator and the cables read 203.5 V
I have some lights that run either 120V or 240V I currently run them off the grid using 240V because the amp consumption is 1/2 compared to powering them off 120V. I will be installing an all in one inverter possibly the SPLIT PHASE LVX SERIES – LVX6048
https://www.mppsolar.com/v3/lvx6048/...
I am looking for a checklist to review prior to flipping the switch on my Solar Disconnect Switch for the first time. I am looking to check my work so I can see if I am making any mistakes that may cause damage to my inverter. I searched the forum and on Google but only found this:
Off Grid...
That is the source of my confusion and the reason I am seeking more info. They use the same watts. I am assuming an inverter that powers 240V devices is for devices that only run on 240V. I am guessing in my case I dont really need 240V. What are the benefits of less resistance?
I am located in Sunny Southern Cali. How low of temps are we talking about? I do plan on getting more panels and I do want panels 350 W +. At some point in the not too distant future I plan on having 2-3 inverters.
oops sorry about that. Yes according to the forum some users said my LV6548V will operate in SOB mode which will allow batteryless operation.
Youtube Video of batteryless mode,
This video is called batteryless mode but it is clear he has batteries attached.
The above unit is LV6048.
a DMM...
I want to build a Grid Assist system with no batteries that will switch to Grid power when the sun power is too weak to supply my needs. Is there a setting in the LV6548 that will allow this to happen? I thought the ATS functionality could handle this but can it without a battery?
oops sorry about that. Yes according to the forum some users said my LV6548V will operate in SOB mode which will allow batteryless operation.
Youtube Video of batteryless mode,
The above unit is LV6048.
a DMM reading of PV voltages at the PV connection terminals of your AIO would be a good...
I am duplicating this diagram but with 6 panels. on both ends i am using a 4 in to 1 out cable to connect the end panels. But I am using only 2 of the four connectors
I am trying to figure out how many panels to put in a string. I have 20 San Tan 250 W panels. (specs below) and a MPP Solar LV 6548V (specs below)
How many should i put in series and what gague wire should I run 230ft. Unclear on # of conductors and Load Current amps. Is my calculation good...
I am also wondering about any gotchas for which I may be unaware.
Example:
MC4 Connectors. We name MC4 connectors by the housing, not by the contact sheet, this is because the contact sheet of a male MC4 is female and the contact sheet of a female MC4 is male. BE VERY CAREFUL NOT TO CONFUSE...
I currently have a 50 amp at the main feeding a 40 amp 240 on the subpanel. Do you think I should have all 60 amp breakers one each for the main the sub and one for the subpanel attached to the inverter?
I am wondering since this unit has dual PV inputs and "high PV input 250V (Voc)"
https://www.mppsolar.com/v3/splitphase-lv6548/
Does this mean that I can do up to 6 of the below panels per input?
My confusion is these show 37.6 Open circuit voltage (VOC). Does the spec "high PV input 250V...