Smart UPS SRT8000XLT

[MarkC_apc]

This was originally posted on APC forums on 12/14/2015

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Anyone have the following information on this UPS?

-  What is the "idle" wattage that this unit draws with no output load when connect to mains

-  Any estimates of wattage draw on batteries with on output load connected when mains are disconnected?

-  What DC voltage does the DC/AC inverter section operate?

-  What is the maximum wattage that the battery charging section can produce?

The technical specifications indicate that the unit is capable of 8000 watts and 8000 VA limits.  Does this indicate it has a power factor of unity?

[BillP]

This reply was originally posted by Tom on APC forums on 12/15/2015

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On 12/14/2015 8:45 PM, Mark said:

-  What is the "idle" wattage that this unit draws with no output load when connect to mains

I don't know this one.

On 12/14/2015 8:45 PM, Mark said:

-  Any estimates of wattage draw on batteries with on output load connected when mains are disconnected?

This is the Tare Power and it is 60 Watts

On 12/14/2015 8:45 PM, Mark said:

-  What is the maximum wattage that the battery charging section can produce?

it is a 319 Watt charger

On 12/14/2015 8:45 PM, Mark said:

-  What DC voltage does the DC/AC inverter section operate?

192 volts

On 12/14/2015 8:45 PM, Mark said:

The technical specifications indicate that the unit is capable of 8000 watts and 8000 VA limits.  Does this indicate it has a power factor of unity?

Yes, when the unit is in green mode, it can achieve unity power factor, but this will increase your transfer time. 

Tom

[MarkC_apc]

This was originally posted on APC forums on 12/15/2015

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On 12/15/2015 8:14 AM, Tom said:

 What DC voltage does the DC/AC inverter section operate?

192 volts

So the SURT 8000(and 10K) changed from 384 nominal DC volts to 192 volts for the SRT8K model (and 10K)?  Do any of the newer LCD screen, double conversions use the 384 nominal DC volts (4 battery cages in series)?

Thanks for the info, Tom

Mark

[BillP]

This reply was originally posted by Tom on APC forums on 12/15/2015

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Not that I know of. I believe they all run off of the same battery and they are all 192.

Tom

[MarkC_apc]

This was originally posted on APC forums on 12/15/2015

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Tom, I cannot recall why I was convinced the larger SURTS (8K plus) put all four battery cages in series to get the 384 nominal voltages - maybe a 3-phase version?   Seems Schneider has removed much of the SURT information from the website - along with SU/SUA tech data?

[BillP]

This reply was originally posted by Tom on APC forums on 12/15/2015

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Yes they have! It makes it very hard for me to do my job sometimes. (I think they are working on it) That being said I can ask around and see if anyone knows of a unit that had a 384 voltage.

Tom

[MarkC_apc]

This was originally posted on APC forums on 12/15/2015

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I appreciate if you could find that out.

Mark

[BillP]

This reply was originally posted by Tom on APC forums on 12/16/2015

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Hey Mark, 

I spoke with one of our Tiger leaders for the smart ups products, he said we never made a smart ups that had that high of a battery voltage. He said that inside the UPS there maybe a unit that has a DC bus that is that high. But unfortunately that is where I can no longer provide support.

Tom

[MarkC_apc · Accepted solution]

This was originally posted on APC forums on 12/16/2015

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Sort of a guarded response from you Tiger Leader.  I realize that the battery terminal voltage for the SURT lines are 96 volt DC nominal.  So the question is how many are in series at the UPS "bus".  Up to the SURT6000, appears to be  192 volts nominal (two in series).  For some reason, I thought that the SURT8000 on up was 4 in series for 384 Volts DC.  Anyway, I guess the only way to be sure is to look at the battery cage wiring - but don't have one to look at!

Thanks anyway - Mark