Recent content by Roo

I admit I am thoroughly confused with hp and watts. I have a Franklin 1hp submersible pump running on single phase 220vac. I use a dedicated 5k inverter to run it, it's only job. I find it very suitable for the task. All calculations tell me that 1 hp = approx. 745 watts. However, the inverter...

I should point out that the Internet, Websites and Forums such as this are not exclusively U.S.A.-centrtic. We in other continents and countries have had access for some time now. As of today 29/07/2020 in S.E. Asia, currency exchange puts 3,000f Ultra-caps @ approx. US$150.00 per six pack =...

Epever AN series 40amp.

I'll try to make this a little more clear. This is a very strange phenomena. 24v batteries, MPPT charge controller. VOC panel shutdown is at 29.9v as per battery manufacturer specs. It is 7.00 am in the morning, batteries are at 50%. It's been raining overnight so very cloudy. It is winter...

I have a volt meter attached to each battery in my bank of 8 batteries. On pump startup the voltage drop is significant. With capacitors installed this doesn't happen as the power is drawn from this source instead of the batteries. Then the batteries take the load of running the pump. Some...

Can any expert here answer this question, this issue has hit me twice on my off grid system. One of my panels, all 340w 9a is currently putting out 40.5v; it's now 5.00pm and cloudy. Usually they all max out at 28v at midday with sun. My system is 24v. As you would realize with this over...

Yes, I did. I made an experimental unit first to keep it relatively cheap. I've seen setups using capacitors from 100 farads to 3000. The 3000 farad ultra capacitor is quite expensive so I went with 500 farads to see what the result would be. As I am using 24v batteries I bought 12 x 2.7v 500f...

The controller is programmed to turn off the voltage at the maximum input of the batteries, in my case 29.9v.

First off, I live in Thailand and get plenty of sunlight. My area is specified as providing 6 hours of sunlight on average per day. Sun all year and hot. Atm it's summer and I get approx. 11 hours of usable solar energy per day around 90% of the time. I mention this as it directly impacts on my...

Hi all - now in a position whereby I need to add another panel to my existing system. Problem is that the company I bought from does not supply the panels I previously bought any more. My panels are 340w 24v mono; my controller - Epever Tracer 40w - will allow another 2 panels at these specs...

Thanks for that, confirms my understanding of the concept. I will now proceed with the modification.

Thanks for the replies. I think some have misunderstood my intentions and I have omitted a fact. The inverter handles the job just fine, starts and runs the pump without difficulty. * My intention was to simply make a more efficient system.* My cabling is fine, I've gone oversize and yielding...

Not where I am, S. E. Asia, far cheaper than batteries or a bigger inverter (very expensive here, solar is a relatively new tech in my area). I only need enough voltage to match my 24v batteries. Cost is diy @ au$20.00. Don't know offhand what this in us$.

The pump is 220vac 50hz, driven by a 4, 000w inverter. Anything smaller won't kick it over.

Any one using super capacitors for devices with large start up requirements? In my case a 1.5 hp deep well pump. It takes a heap of energy to start, about 4 times the energy required to run. It appears that a correctly designed super capacitor should make this task more efficient in terms of...