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14 votes
1 answer
3k views

Is oil normally this dirty after a 5-hour break-in period of a small inverter generator?

I bought a small inverter generator, filled it with SAE10-30 oil that shipped with it, taking care to check with the dipstick several times so as not to overfill it (though it did take the full bottle)...
mr blint's user avatar
  • 1,972
8 votes
3 answers
2k views

Solar-electric system not generating rated power

I bought a solar PV system a couple of months ago. It has 11 410-watt panels for a total of 4.5 kW. The first month it was cloudy and never generated over 3.2 kW of power. Now that it's been bright ...
Hannover Fist's user avatar
5 votes
2 answers
3k views

Will higher BTU A/C inverter not work in room that needs 18K BTU?

I currently have a 12,000 BTU TGM A/C inverter in my room. Whenever a technician goes for maintenance, they tell me that a 12k BTU is too small, based on size. I haven't changed it because it worked ...
rbhat's user avatar
  • 2,113
5 votes
2 answers
2k views

Bypassing an inverter using manually operated switch

I am in the design process phase of a home project where I will be adding a hybrid solar inverter and battery storage into my home setup. We will not be connecting a solar PV array. The goal is to ...
Paul Evans's user avatar
4 votes
2 answers
361 views

Help understanding grid tie inverters with limiters [closed]

Wondering if someone can answer some questions for me about my ideal solar setup. Background - I'm looking to tinker with adding some solar piecemeal ( I know I'm better off getting all identical ...
user168382's user avatar
3 votes
2 answers
468 views

Off Grid Solar System - 250 amps of Inverter capacity - What load center do I use?

I have four Sol-Ark 15k inverters (Although I'd like to size things so that I have room to add more in the future if needed). Each inverter can supply up to 62.5 amps of continuous power. So 62.5 ...
irwinr's user avatar
  • 33
3 votes
2 answers
7k views

Room lights flickering when I connect my desktop computer when running on Inverter

I have all LED lights (tubelights and bulbs) in my house and has been backed up by an inverter (Luminous Eco Volt +1550 with Inverlast 150Ah Tall Tubular Battery). The issue is when I connect my ...
user3798775's user avatar
2 votes
4 answers
672 views

Can an inverter be supplied by a battery with lower AH than required for designed VA?

I'm looking to provide backup power to a home CCTV system. The PoE switch has a maximum rated dissipation of 78W. Each camera draws a peak of 7W. Since each camera is powered by the PoE, I assume the ...
Everyone's user avatar
  • 401
2 votes
4 answers
2k views

What kind of inverter do I need for an inductive load?

TLDR: My shed AC unit (maximum draw 8A 120V AC) keeps tripping my 1100W inverter. It seems to have troubles occasionally when the fan turns on. It's pretty much guaranteed to have troubles when the ...
Elros's user avatar
  • 413
2 votes
4 answers
2k views

Can I plug my new LG-LW2217IVSM A/C nema 6-15P into a 6-20R with a 20A-240V CB?

The user manual says to use a nema 6-15R with a 15A two pole Circuit breaker(240V). But my existing setup is a nema 6-20R with a 20A two pole CB(240V). I realize a 6-15P plug will fit into a 6-20R ...
Troy's user avatar
  • 23
2 votes
1 answer
124 views

Solar inverter output protection breaker

I have a solar inverter. Previously I would just assume the line and pull it through required single phase breakers in the distribution box. But I have noticed that both lines have voltage to ground. ...
user avatar
2 votes
1 answer
2k views

Running Tesla Powerwall 2 Off-Grid - Excess Solar Question

Above is how I envisage my solar/battery system to be functioning in normal operation. So I've recently had a Powerwall 2 battery installed into my home. It comes with the gateway device that allows ...
user avatar
2 votes
3 answers
57 views

Premium for heatpump inverter technology

My understanding is that a variable speed compressor permits greater efficiency and reduce wear & tear. Assume application is in Florida, not NYC. Is there a range for the cost premium for such ...
gatorback's user avatar
  • 3,098
2 votes
2 answers
3k views

How do I ground an AC inverter in a RV?

I am working on installing a Victron Energy Phoenix Inverter 800VA into my little teardrop RV. I am doing something men just don't do, I read the Victron Energy Phoenix Inverter manual! Appendix A ...
Sam Carleton's user avatar
2 votes
0 answers
151 views

Do I need to ground my off-grid house inverter?

I'm building a battery box for my off-grid house, consisting of a 155AH AGM sealed battery, Krieger 1100-watt inverter and a Samlex SEC-1230UL 30A battery charger for using my generator to charge the ...
Mark's user avatar
  • 291
1 vote
4 answers
3k views

Feasibility of using 18V batteries to power AC tools

I have a few (working) 18V batteries (Makita, LXT) and I would like to be able to power some AC (220V) power tools with them. Many of the AC power tools have electronic control and simply applying DC ...
Andrei Rînea's user avatar
1 vote
1 answer
1k views

Does an off-grid solar inverter need to be UL listed?

I'd like to put some solar panels near my house and power a small sub panel with a few key circuits. Like the fridge and freezer. The idea is to reduce my electrical bill, and have some power to use ...
Mike Gray's user avatar
  • 115
1 vote
1 answer
142 views

Protecting high-capacity inverters

We have a 5 KVA home inverter. The weather, winds and rains, often causes power outages and fluctuations. Our problem is mostly with the surge has damaged our inverters a few times the most recent ...
J K's user avatar
  • 119
1 vote
2 answers
1k views

Can I connect a normal 12 Volt 150AH C10 battery with a solar 12 volt 150AH C20 battery in series for my 24Volt solar system

I have an Exide invamaster 1500imst short tubeler normal battery of 12 volt, 150AH, C10. Now I want to connect this battery with a solar battery of 12 volt, 150AH, C20. Can I connect this normal 12 ...
Kiran Dutta's user avatar
1 vote
3 answers
7k views

Battery Backup for 240V (USA) Water Well

I have a well pump. I want to build out a battery backup (and, eventually, charge the batteries with solar and, more eventually, move to solar full time). It's 1/2 horsepower on a 240v circuit. It's a ...
Andrew Kvochick's user avatar
1 vote
1 answer
2k views

Does an air conditioner's fan use more power on Max than on Auto?

I have an inverter air conditioner unit. I usually set it on 26°C, to save energy consumption. I live in a really hot area (it's 34°C right now (~93°F), in the middle of the night). My questions is ...
Marcelo's user avatar
  • 11
1 vote
1 answer
123 views

Is there any downside I need to know when I add new solar panels to existing ones?

I currently have about 12 LG solar panels installed on my roof. They only produce about 3kwh at peak sunlight condition even though they are nominally a 4kwh system. It is because of my house's ...
Anthony Kong's user avatar
1 vote
2 answers
3k views

Lights start flickering on Luminous inverter when I connect my Desktop CPU

I am using luminous solar nxg 1100 solar inverter. At my home, I have 4 fans, one tv, 10 led lights, 3 laptops and a desktop. All the equipments work fine when there is main supply. If there is no ...
Kiran Dutta's user avatar
1 vote
1 answer
228 views

Is it safe to plug 110v outlet to inverter input, and inverter output to the inletbox

I have installed the 10 breakers transfer switch, so if the power is out I can just connect the generator to the inlet box. I dont want to disturb my neighbors at night so I am planning to install ...
sharon's user avatar
  • 41
1 vote
2 answers
511 views

My new inverter has an unusual power output. Will it harm ordinary appliances to use the output described?

A recently purchased 12 volt to 120 volt pure sine wave inverter produces to a standard 3 hole 15 amp receptacle, 2 hot legs of 60 volts each with 120 volts measured across them. The third leg of the ...
Steven Schang's user avatar
1 vote
2 answers
282 views

Window AC unit LCDI tripping when powered by my solar inverter

I have a small 200w solar power system consisting of a Victron 500VA inverter (900w peak) with a 100ah AGM battery. I just purchased a 5000BTU/4 amp window unit that draws a peak of 430w according to ...
Jartron's user avatar
  • 25
1 vote
3 answers
779 views

Why do the outlets in my solar-powered cottage read "open ground"?

My 5000W pure-sine inverter has its metal shell grounded via lug to a #6 copper wire that goes to ground about 4 ft. away. The leads go to a combiner box that is grounded to the same ground. Besides ...
user avatar
1 vote
1 answer
99 views

How does an inverter use excess solar capacity to charge a DC connected battery?

Given the following home solar setup: 10KW of solar panels 5KW (Fronius Gen24) inverter 10KWH DC attached battery And it is a sunny day with the potential of generating a full 10WK from the solar ...
Bobby T's user avatar
  • 13
1 vote
1 answer
333 views

Proper torque specs and cleaning busbar and lug connections

I have 4 stud M8 (5/16”) Bus bars which connects 4/0 and 3/0 copper lugs from the LiFePo4 batteries (2.5 kWh) and Inverters 2.6 kW split phase off-grid). I wanted to know what can I use to clean the ...
Rick's user avatar
  • 889
1 vote
1 answer
4k views

Determining Bus-Bar Rating for PV Installation

I already have a primary PV inverter connected up through a 40A breaker. I'm looking to expand by adding a second PV inverter. To comply with the 2014 NEC 705.12(D)(2) rule I need to know the panel ...
jcoleman's user avatar
  • 597
1 vote
2 answers
126 views

Question about new inverter for solar power system

I am new to this community so I hope this is the right place. I am looking into buying a new inverter for my off grid cabin running from solar. I would like to purchase THIS 3000w inverter. My ...
BigCountry's user avatar
1 vote
1 answer
167 views

What do I need to switch power automatically from utility to solar offgrid inverter with no downtime at all during the transfer?

I want to switch power somewhere where power outage happens frequently from utility to inverter and back and forth kind of like a UPS without giving up on my inverter and what I already have.
Superhuman's user avatar
1 vote
0 answers
268 views

Battery backup for 5HP VFD-driven well pump

I have a 5HP well pump that's paired to a Franklin Electric SubDrive Connect VFD - the unit converts input 240VAC single-phase into three-phase power (30hz-60hz). I'd like to put a battery backup in ...
atanamir's user avatar
  • 373
0 votes
2 answers
1k views

Can micro inverters be fooled to feed back-up when grid is down?

I have a small roof that barely fits 12 panels, a row of 8 in portrait on top, and a row of 4 in landscape below. The 4 will get some shadow on the bottom for about 4 months of the year, so they would ...
Louis Somers's user avatar
0 votes
4 answers
1k views

Wiring an inverter into an RV using an contactor (AC Relay)

I am working on installing a DC to AC inverter (Victron Energy Phoenix 800VA) in my little teardrop RV such that the Inverter powers ALL the AC ports when it is turned on. The objective is to have it ...
Sam Carleton's user avatar
0 votes
2 answers
93 views

Interlock for GE PowerMark plus subpanel [closed]

I have a GE TL412R1P subpanel and would like to use a 70 amp breaker for the inverter and another 30 amp for the generator as transfer switch to either accept power from a 30 amp max split phase power ...
Rick's user avatar
  • 889
0 votes
1 answer
168 views

Should an inverter heat pump be sized according to the conventional AC unit it replaces?

A split conventional AC needs to be replaced due to age. The current AC is 48K BTU (4-ton). If replaced with an inverter heat pump, should it be sized with a 48K BTU unit? Or should it be sized with ...
gatorback's user avatar
  • 3,098
0 votes
1 answer
74 views

Can I Change The 240V Coming Into the Main Panel To 2 120V Panels?

I have a generator that has a 240V plug which connects to the main house panel via 8/3 Romex (Black, Red, White, Ground). The generator has two 30A breakers on it. Can I split that wire coming into ...
kb25's user avatar
  • 1
0 votes
2 answers
278 views

Automatic Timer Solar Cutoff

My inverter insists on trying to get the last few rays, even when the inverter is really seeing 0A. With the lithium battery things are worse, in that the custom "back to grid" settings are ...
Anthony Horne's user avatar
0 votes
2 answers
125 views

Was my inverter damaged during testing?

Can a Sun Gold, model LFPV10KW, solar inverter be damaged if one or both of these things are done: the inverter's terminals are shorted together while attaching the 220amp battery to the inverter. ...
Trench's user avatar
  • 11
0 votes
1 answer
823 views

How do I avoid overcharging the inverter battery and keep it healthy [closed]

I have installed the Luminous Inverter Battery (lead acid) as power back up for essential electrical appliances at home. There is not much electricity cut. I just want to be sure that I'm not ...
CuriousMan's user avatar
0 votes
1 answer
120 views

Second hand SolarEdge 10000H-US Grid tied inverter

My question is how I can safely test whether this inverter is functioning. It requires dc optimizers and I haven't purchased them yet but before I go too far purchasing compatible optimizers, I want ...
Bob's user avatar
  • 15
0 votes
1 answer
93 views

Should I wait for my inverter alarm to know when my battery is discharging beyond safe level or should I shut down the loads sooner?

I am using a flooded deep cycle lead acid 24v 450ah battery bank. I don't want to discharge them beyond safe levels so they can last longer. I don't know how to check the state of charge. I have a ...
Superhuman's user avatar
0 votes
1 answer
234 views

Trying to wire my inverter output into my RV panel

I really want to wire my inverter AC output into my RV distribution panel. I have all of the wires run where they need to be. My Idea is to be able to flip the main breaker for shore power to "Off" ...
Cody Newman's user avatar
0 votes
2 answers
2k views

Water pump and inverter

I'm using a 2500 watt inverter with a regular car battery to power a vacation house with no city electricity or water, all my appliances work just fine except the water pump, the manual of the pump ...
Dan's user avatar
  • 1
0 votes
1 answer
106 views

Can I Still Use 2nd Hot Wire In Panel If I Rewired Panel For 120V? [closed]

I'm working on a cabin that only has electricity supplied to it from a generator room outside the house. The wire coming into the house was 8/3 with the 2 hots going to separate sides of the panel and ...
kb25's user avatar
  • 1
0 votes
2 answers
4k views

Flickering lights in house when Inverter switches mode

Question: Is it normal to experience flickering of all lights in the house during the interval that the inverter switches between battery and grid source output modes? The flickering occurs even ...
brand2000's user avatar
0 votes
1 answer
240 views

Inverter switches off powering as soon its unplugged from mains

I have a Su-Kam shiny 850 model inverter which powers my home appliances when there's a power outage or if I switch off the mains that supplies power to the inverter. However whenever I unplug the ...
HeisenBerg's user avatar
0 votes
1 answer
4k views

How to stop inverter from charging battery using grid power and charge battery using only solar panels?

I recently installed solar charge controller and solar panels to the inverter battery system. Here inverter also contains battery charger and other components. So now instead of connecting inverter ...
codewiz's user avatar
  • 113
0 votes
1 answer
544 views

Prototype: 12 DC car battery to power standard 120 VAC hand tools

Objective: Today I power my tools (drill, circular-saw, reciprocal saw etc.) in my shed by running a power line from my house. I wish to install solar power panels on my shed; however, before I do ...
user97485's user avatar
  • 303