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Posted

Good day,

 

Any inputs or advise please.

I recently lost my two batteries on my system due to poor quality and supplier not honouring their warranty.

I have a 5Kva Luxpower inverter with a generator input,thinking of getting a generator as last resort back-up but I want to know if it is a straight forward connection direct from inverter through a breaker to the generator.

We are fine with manual starting so no need for fancy gadgets to get it started.

Would appreciate any input or feedback.

 

Thanks.

Posted

The LuxPower has a Generator input, so it should be as simple as connecting the output of the generator to the input of the LuxPower. Also, if generator and LuxPower are in same vicinity then a breaker shouldn't be ness as the Generator should have it's own.

The specs for the generator input should be in the LuxPower docs - Most "cheaper" generators in SA, don't always output what they say they can, so make sure your Generator outputs enough for the LuxPower minimums. Especially check the ranges the LuxPower needs as far as Hz, Voltage AC, Amps (or kW / kVA), and lastly if the LuxPower needs a Sine Wave input for the Generator (otherwise it wont recognise that there is any power coming in).

IE: You will need to buy a Generator in spec for the LuxPower - But connection should be very simple from there.

Posted (edited)

Sorry, I have looked for spec docs for Generator input, but nothing is specified... Maybe borrow a cheaper 3-5kVA from someone you know and try - Worst case scenario it just wont work, you shouldn't damage the invertor as it will either use it or not.

PS: 5kVA 3kVA is just under/close to the 16A limit of a normal plug, so a high quality extension cord can be used if you intending on drawing that much during Load Shedding... Even with my server room (600W constant), we can fit below 1000W during load shedding with all lights (including external), TV and Accessories, 3 Computers/Laptops all running. Max 5-7A even if cooking on induction stove.

Edited by KLEVA
5kVA is not 16A - 3kVA is correct
Posted
3 hours ago, KLEVA said:

Sorry, I have looked for spec docs for Generator input, but nothing is specified... Maybe borrow a cheaper 3-5kVA from someone you know and try - Worst case scenario it just wont work, you shouldn't damage the invertor as it will either use it or not.

PS: 5kVA is just under/close to the 16A limit of a normal plug, so a high quality extension cord can be used if you intending on drawing that much during Load Shedding... Even with my server room (600W constant), we can fit below 1000W during load shedding with all lights (including external), TV and Accessories, 3 Computers/Laptops all running. Max 5-7A even if cooking on induction stove.

Is 5 kVA not close to 22 A?

Most induction plates I have seen are 2000 W thus over 8 A at full power. Camping models at 1200 W

Posted

Have a 1500 Induction stove - This hits 6A or 1500W/hrs for such short periods that as long as you not pushing the power it is quite happy with the small very temporary loads. It also works quite well on my chinese 1500W invertor that fails to provide anything else with close to 1000W.

Apologies - You are correct, my brain was working on 3kVA on my system at home - So my math was bad. At full draw 5kVA is about 22A of 220VAC, 3kVA is about 13A.

Posted
On 2022/04/04 at 11:11 PM, KLEVA said:

Have a 1500 Induction stove - This hits 6A or 1500W/hrs for such short periods that as long as you not pushing the power it is quite happy with the small very temporary loads. It also works quite well on my chinese 1500W invertor that fails to provide anything else with close to 1000W.

Apologies - You are correct, my brain was working on 3kVA on my system at home - So my math was bad. At full draw 5kVA is about 22A of 220VAC, 3kVA is about 13A.

You are lucky with the 1500W induction plate. Mine is 2000W and if I switch it on with a 1500/3000W pure sine inverter it does some check and does not even blink to try and switch on. I was hoping I can switch it real fast down to 50% or lower but impossible. It does work well with a 2.4kW Axpert.

  • 11 months later...
Posted

Hi, we have a generator as backup power source for our home. The generator is linked via a changeover switch and feeds directly to our db box and everything works fine during load shedding. 

Our problem now is that since we have purchased a 5kva luxpower inverter and battrey in power backup mode. we would like to have the generator connected such that in case of a protracted blackout, the generator can charge the inverter battery. Is this possible? How so? 

Suiker 

  • 1 month later...
Posted

I have exactly the same question. Would just like to charge the battery during the end of long periods of load shedding.

Would a 2000W Ryobi inverter generator be OK for this? Thanks, Ron

  • 3 weeks later...
Posted
On 2023/03/26 at 9:38 PM, Suiker said:

Hi, we have a generator as backup power source for our home. The generator is linked via a changeover switch and feeds directly to our db box and everything works fine during load shedding. 

Our problem now is that since we have purchased a 5kva luxpower inverter and battrey in power backup mode. we would like to have the generator connected such that in case of a protracted blackout, the generator can charge the inverter battery. Is this possible? How so? 

Suiker 

Hi. Did you ever mange to set this up? I also need to connect our 7kVA generator to our 5kva luxpower inverter. Is it as simple as plug and play or is there more involved than that?

Posted
On 2022/04/04 at 10:59 PM, Scorp007 said:

Is 5 kVA not close to 22 A?

Most induction plates I have seen are 2000 W thus over 8 A at full power. Camping models at 1200 W

You need to convert KVA to Watts. Power factor around 0.8. So 5000x0.8=4000watts

I=4000/230= 17.39 amps.

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