Generator power

[deuce22]

Hi.

How can I find out if the generator I am thinking of buying will power a certain item.

I am looking at an 850w portable generator and I need it to power a 550w cement mixer.

Will this be enough.

Thanks.

 

[merlin50]

it will but buy several as they do not last very long if its a cheap one

 

[deuce22]

The majority of these portable ones are around £100.

The more expensive ones have more watts, but I don't really need it for anything major.

It'll be on for about 5 hours per day for a week at a time.

 

[wotan]

I would recommend the generator to have an output at least three times the amount of the intended load.
There will be load fluctuations on the mixer, so the generator should be sized to cope, running a 550watt machine off a 850watt generator leaves practically no reserve.

Wotan

 

[deuce22]

Thanks guy's.

What I was looking for was a general rule, which you have told me.

I have found one that has a max output of 1500w and a constant output of 1200w.

I'm assuming from what you have said that I should be looking for one that has a constant output of no less than 1650w, but these go beyond my budget.

I won't be using this constantly week in week out, but I don't want something that's going to burn out after a few times of use.

Cheers.

 

[Burnerman]

The 1500w one should be fine - but in doubt its worth hiring one for a day.
A genny that is too small will tend to stall or slow right down once a heavy load is applied.
John

 

[deuce22]

I managed to find a 2200w generator that was in my budget.


The guy said that this would be fine for what I need.

Thanks for all your help.