Yamaha EF1000iS Generator

Submitted: Sunday, Apr 25, 2004 at 11:50
ThreadID: 12352 Views:2805 Replies:1 FollowUps:3
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Looking at the Spec sheet for this I see that, and I quote,
the "Rated Output = 0.9kVA"
and further on it states, and again I quote, that
"Max Output (kW(ps)) = 1.6 (2.2)/4000".
Can some kind soul please enlighten me .....
(a) How do these two measurements correlate, and
(b) What exactly does the second measure mean?
Also, to all intents and purposes the Yamaha and the Honda 1000 appear to be almost identical. Will comparing one with the other generate the same passion as comparing a Cruiser with a Patrol and if not is there a clear recommendation?
Thanks in advance,
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Reply By: Member - Nigel (QLD) - Sunday, Apr 25, 2004 at 12:42

Sunday, Apr 25, 2004 at 12:42
Rated output is usually what the generatator will cope with continuously

Max output would be the maximum theoretical surge output

The Honda EU10i is an inverter generator - that means the alternator produces power to run a inverter and the inverter makes the 240v power - so it's cleaner and more stable power than the output of the alternator. So if you are running electronic equipment it will be happier.
AnswerID: 55848

Follow Up By: Member - Nigel (QLD) - Sunday, Apr 25, 2004 at 12:52

Sunday, Apr 25, 2004 at 12:52
Just reread the yamaha specs on their website

the Max Output (kW(ps)) = 1.6 (2.2)/4000 is in reference to the max power output of the engine, not the electrical output of the inverter.

For the inverter the max (peak) output is 1kW and the rated (continuous) output is 0.9kW
FollowupID: 317705

Follow Up By: Flash - Monday, Apr 26, 2004 at 09:24

Monday, Apr 26, 2004 at 09:24
Not correct!
The Yamaha inverter, just like the Honda inverter WILL put out more than it's rated power for brief periods eg: for electric motor starting.
Re the Honda vs Yamaha question, the Yamaha came out much later than the Honda and a friend in the business says Yam learnt from Honda's mistakes- they are far more repairable (affordable), tho having said that both are good.-cheese and chalk compared to the garbage cheapies from China.
FollowupID: 317825

Follow Up By: CHRIS - Monday, Apr 26, 2004 at 13:54

Monday, Apr 26, 2004 at 13:54
Someone mentioned earlier that these so called cheapies come out of a Yamaha factory or have a Yamaha engine, so they can't be all that bad. I have the GMC one and can't fault it for the money. Time will tell no doubt.
FollowupID: 317861

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