dacool1:
Can someone please explain why a resistive load draw more amps than inductive load of same power rating.

JUO:
no

mctfopt:


I dunno about websites, if you live in an area prone to lightning strikes, the results are there in the form of damaged inverters, TVs etc after a thunderstorm.

Also you'll notice a lot of strikes during rain.

mctfopt:


I used the Fangpusun FLEXmax solar charger controller, which has a lifespan that depends on a variety of factors. These factors include how close you run it to the maximum open circuit voltage, how cool it runs (which is determined by the location), the protective devices you have (a surge protective device can help), and the area of the city you live in (some areas are more prone to lightning strikes than others).

dejidotun2000:
A resistive load doesn't draw more current than an inductive load of the same rating, it's the other way round.
A resistive load of 2300W connected to a 230V AC source will draw 10A, an inductive load of same 2300W and power factor of 0.5 will draw a current that is twice what the resistive load draws.

mctfopt:


Sure. The amount of current drawn by a load is determined by its resistance and the voltage applied to it. According to Ohm's law, current is equal to voltage divided by resistance. So, for a given voltage, a load with a higher resistance will draw more current.

A resistive load is a load that simply converts electrical energy into heat. The resistance of a resistive load is constant, so the current drawn by a resistive load will be directly proportional to the voltage applied to it.

An inductive load is a load that contains an inductor. An inductor is a coil of wire that stores energy in the form of a magnetic field. When current flows through an inductor, the magnetic field builds up. When the current stops flowing, the magnetic field collapses, creating a voltage that opposes the current flow. This voltage is called back EMF.

The back EMF in an inductor delays the current flow, so the current in an inductive load is not in phase with the voltage. This is why inductive loads have a lower power factor than resistive loads.

The power factor of a load is a measure of how efficiently the load converts electrical energy into useful work. A power factor of 1 means that all of the electrical energy is converted into useful work. A power factor of less than 1 means that some of the electrical energy is lost as heat.

Because of the back EMF, an inductive load has a lower power factor than a resistive load. This means that for a given voltage, an inductive load will draw leas current than a resistive load of the same power rating.

Tommynaku:
EVE 105Ah with 3C 315A discharging,

Please can someone help me explain this below for a lithium cell I want to buy.
Max Discharge Current 3C/ 315A

What I normally see is 1C, But I just saw 3C on this cell

TechGeek777:


I use Qasa rechargeable fan + Qasa 20w panel, don't charge it with Generator and don't use it to charge your phone, then set it at speed 2 at night and it would last you till dawn plus some charge left over.

It's sold for 40k+

Olarewajub:


Hello, thanks once again for your suggestion.

I just got the fan.

A quick question, can I use the fan while charging or it must be used only on the battery?

TechGeek777:


When you newly bought it, you MUST charge it to full capacity (the light will turn Green when fully charged), doing this with NEPA light could take up to 12hours, after it's charged you can start using it while it's charging.

I advise you buy Qasa 20w(15k minimum) panel to charge this fan effectively.

With the panel it get to float by 11am/12 noon

Olarewajub:


My home is fully off the grid (no NEPA or generator).

Would you still advise I get the 20W panel?

TechGeek777:


Since you have solar already, you can charge with it, but ensure it's fully charged before you start using it.

I bought mine since March 2022, and it's still going strong.

Those who bought few months ago are complaining because they use it wrongly.

Do you mind sharing how much precisely you bought yours?

Also, do you care to share your solar setup?

Olarewajub:


Thank you very much.

I got the fan for 44k, though it is 42k on Jumia.

Concerning the Solar setup, I would need to do some confirmations.

I am still new to the PV system, especially the calculations.

dacool1:


Me I am now confused. OK this is my situation. I have a freezer that draws 0.78amps and a heater that draws 0.77amps both at 230v

My battery remains at 12.5v when it's just the freezer that is turned on but it drops to 12.3v when I put in the heater alone.

. Another scenario is that when I put on the freezer with other appliances that are not resistive that draw a sum of 2.3amps at 230v my batteries remains around 12. 4 to 12.3v but when I turn on just a small oven that draws about 2.45amps at 230v the batteries rapidly drops to 12.1v

kiekie1:
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TechGeek777:


Okay, the first one I bought last year was 32k, bought another one with same Qasa panel between March/April this year for 42k, the 2k difference is fair.

You don't need much maths, just state the Watts of your panels, how many panels, no of batteries, charge controller amp that's all.

The essence is for prospective solar people to have ideas of what to go for.

Olarewajub:


Panel: 4 panels (190 watt each)

Battery: 2 tubular Batteries (220ah)

MPPT Charge controller: 50A

Inverter: 24v Addo Inverter

This serves me 24 hours off the grid

TechGeek777:


Nice, do your batteries float daily?

What's your load like?

Olarewajub:


No, my battery does not float daily due to the cloudly weather here.

My load is pretty low. Highest consumption comes from my double door refrigerator.

TechGeek777:


You may need to add two more panels for efficient charging of your batteries.

Olarewajub:


No, my battery does not float daily due to the cloudly weather here.

My load is pretty low. Highest consumption comes from my double door refrigerator.

osayuwamwen:
Do u run yr refrigerator 24hrs or just during the day time?

Olarewajub:


Just for a few hours during the day.

Valto:
12v 1000w available @35k
12v/24v 1600w
12v/24v/48v 2000w
24v 3000w
will be available in 2weeks time.

temi4fash:


How much is the 24V 3000W

Do you sell external chargers and how much is it?

samnaija:


Does flexmax at night, display sleep mode zzzzz.