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Old 01-06-2018, 04:21 PM   #21
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City: Wilmington, NC
Vessel Name: Louisa
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Dave, it must be synchronizing inverter to have that input Hz sensitivity. Details beyond that are above my paygrade and should be sorted with the inverter mfr.

Can be a nice feature as inverter can act as a boost to a smallish gennie, but then system design can get complicated.
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Old 01-06-2018, 04:39 PM   #22
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OK, I understand that you were talking about synchronizing inverters. Way above my pay grade as well. I have read about them, but never seen one.

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Old 01-07-2018, 05:51 PM   #23
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I have a Next-Gen 3.5KW installed on my Helmsman 38 Trawler. I have it installed at the aft end of the main salon lazarette, and did not opt for the enclosure because I wanted better access for maintenance and better cooling. My entire engine room is contiguous with the lazarette, and is well insulated. The sound level is quite tolerable, and the gen-set sits where an 8D battery was installed and weighs the same. I have had the unit for 3 seasons, and typically run it about 30 to 60 minutes total per day. Fuel consumption is negligible. The only problem I had was a failed condenser, which was probably my fault because I failed to start and stop with no load (now know better). I am extremely pleased with this unit and can highly recommend it. It amuses me that the manual states it takes 500 hours for full break unit in. I have also heard that these units are extremely durable, many running 7/24 for days/weeks on end.
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Old 01-07-2018, 07:58 PM   #24
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Originally Posted by djmarchand View Post
OK, I understand that you were talking about synchronizing inverters. Way above my pay grade as well. I have read about them, but never seen one.

In my case, when the genset is fired up, the genset output is switched to bypass the inverter, and the batteries are depleted, the frequency wobbles enough to make the microwave flutter on and off. I have no clue why, but it only happens when the charger is putting out full power through the Trace 4000.

When I spoke with NextGen, they said that their output may be more likely to cause that type of problem than a pure sine wave genset like the NL, but when I provided them some data off the spec label on the Trace, they thought I would be fine. Like you, above my pay grade to figure out.
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