Xantrex Sun tie inverter [RE-wrenches]

[Jay Peltz, Peltz Power]

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Hi Ezra,

Yep just checked it out.
Thanks for the input, didn't realize anyone was making LV grid  
inverters.

jay
On Nov 25, 2006, at 9:08 PM, Ezra Auerbach, DragonSun Consulting wrote:

>
>
> I believe that Alpha has a grid tie inverter (Solaris 3500)  which  
> has a rather low DC input voltage (96-200 Vdc). It's a bit  
> oversized with a 3.5 kW rating but on the other hand you'd never be  
> pushing it.
>
> Cheers,
>
>
>
> Ezra Auerbach
> DragonSun Consulting
> Lasqueti Island, B.C. V0R 2J0
>
> ezra at lincsat.com
> 250 333 8650
>
>
>
> On 25-Nov-06, at 1:14 PM, Jay Peltz, Peltz Power wrote:
>
>>
>> Hi Allan,
>>
>> Yep all this is possible, but then you have to add a timer onto it  
>> so that it delays closing for 5 minutes.
>> Also the problem is that it takes a bit of time ( especially for  
>> this inverter ) to MPPT and so it'll go VOC, poof.
>>
>> This is the first one I and my hydro guru have tried at low  
>> voltage, and like I said at high voltage its easy, lots of voltage  
>> room and choices,
>> but at this low voltage its tough.
>>
>> cheers,
>>
>> jay
>> On Nov 25, 2006, at 1:06 PM, Allan Sindelar wrote:
>>
>>>
>>> Jay,
>>> Since it's a low-cost, low-risk system anyway...how about a NC AC- 
>>> coil relay
>>> powered by grid, with the NO/Common power terminals directing DC  
>>> to a
>>> resistive dump load? (Not that I've tried this...) Grid goes  
>>> down, relay
>>> immediately opens, allowing hydro to go to the dump load. You  
>>> might have to
>>> use an MDI mercury contactor to handle the 100V DC, but they're  
>>> not that
>>> expensive in 60A capacity.
>>> Allan
>>>
>>> ----- Original Message -----
>>> From: "Jay Peltz, Peltz Power" <jay at asis.com>
>>>>
>>>> Yep trying to keep this from happening, of course this guys at the
>>>> end of the road way out, common winter power outages so this is a
>>>> real concern.
>>>>
>>>> Yes I can get some pretty pricey  dump loads from SWWP, but trying
>>>> not to.
>>>>
>>>> Thanks,
>>>> jay
>>>>
>>>>
>>>> On Nov 25, 2006, at 12:04 PM, Don Loweberg wrote:
>>>>
>>>>>  What fun to be on the cutting edge. The main thing is to keep the
>>>>> turbine max v below the smoke point. One concern I would have is
>>>>> the situation when the grid goes down, inverter shuts off, turbine
>>>>> load goes to zero, turbine revs up and smokes inverter. Seems like
>>>>> the wind guys may have had to deal with this situation. Good  
>>>>> luck Jay.
>>>>
>>>
>>>
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