Generator Frequency Fluctuations - Whats safe?

Submitted: Wednesday, Feb 06, 2013 at 18:50
ThreadID: 100413 Views:8261 Replies:4 FollowUps:4
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As mentioned on another thread I recently got a second-hand Honda eu10i and am very happy with it. While reading other threads a member mentioned a usage meter that you could get from Jaycar and it tells you voltage, frequency and watts being used. Definitely worth the 20 bucks as I have been testing how many watts are used all my appliances around the house.

The Honda tested at an absolute constant 50Hz and 239 volts. The house mains power tested at the same consistent 50Hz and 244 Volts. I was definitely impressed by the Honda in this respect. So as a comparison I then tested my 750 watt GMC 2 stroke. I wasn't expecting the same result as its not a pure sine wave inverter. It tested at a varying 215 to 220 volts and a frequency varying from 47 to 50Hz. This didn't seem too bad as I have heard other horror stories of some getting upward of 280 volts ad 60Hz. It did make me stop and think as I was about to give the GMC away to my brother, with its fluctuations, what things can you run off this generator without doing damage? What's safe to run with these fluctuations and what's not?
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