mcron
I am stumped on why this would happen. I had an issue with my 47211 15kw a few months ago, as detailed in this thread: [url]http://www.zillerelectric.com/forums/showthread.php?t=1401[/url]

I noted after I got it running again that it was running longer than it had before, but just did not really register it. A normal run is about 6 hours, but now the runs are 9 to 10, sometimes 12. I am taking a WAG here, but it seems like it is not pulling as much amperage as before. I had made an adjustment to the amount that could be pulled at my charge controllers (Trace 5548) due to the backup genset being smaller, but I have kicked it way back even over where the setting was before. From the readings that I can get, it seems to be putting out about 22A, where before it was in the 32 range. This is far below what I know it can do, and would explain the longer running times. The voltage is spot on when it is running.

During that whole swap out process, I replaced the VCB, the Governor Control Board, and the Stepper Motor (ok, just the gears, but I had taken the whole thing apart). So, I am not sure where the problem might lie. I still have the original good boards if I need to swap them in. What would be keeping the amperage down??
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Jack Hottel
mcron;9457 wrote:
The voltage is spot on when it is running.


If the voltage stays up then the current is determined by the load, not the generator. Look there for the problem.
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mcron
See, that is what I would expect. I will have to go over the Trace settings again. I have got to be missing something, and it is probably simple too. :(
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bronco
how old are your batteries?
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mcron
Bronco, that is a good question, and one that I cannot exactly answer. They are between 10 and 13 years old. The overall bank is going down, and 2 batteries in particular are a problem. They are the IBE forklift batteries, 1700Ah, but they were abused badly for the first 4 or 5 years by someone that did not want to know better. Next year they are on the swap list, but buying 24 batteries of that size is a bit of a cash hit.
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bronco
yes it is. we have a customer that has a set up like yours and he has to replace batteries every 5 years do to degeration of the cells. so if you have gotten that much out of your batteries thats awesome. It sounds like the batts can't recharge enough and can't supply the output as before. I would leave your trace settings alone as they worked just fine before, hold on a long as you can and replace them and then see what happens. I'll bet that alll will be ok then. Good luck
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