Problem with load level "catcher"

[DCIM_Support]

Hi, I would like to make power supply model in small server room with distributed redundant "catcher" UPS configuration as this way as in the picture below:

I have problem because the "catcher" show, that "Reserved capacity" ist twice as bigger then UPS (see below).

For example load on STS is

What am I doing wrong? (I use DCO version 7.5).

I will be grateful for the help,

Zenon

(CID:104173558)

[DCIM_Support]

Hi Zenon

Unfortunately the capacity calculations in Operation 7.5 does not handle the situation above very well. I have a suggestion for a work-around which I hope can help.

Work-around:

If you only model one STS instead of the two shown (I know this is different from your physical setup), and then add a PDU to distribute to the two PDUs RS-1 and RS-2, the load on the catcher UPS (BYPASS-UPS) will be correct.

I am also very curious about the setup you have shown, because with the given equipment I would have thought a 2N setup was preferred. Can you help me understand what the benefits of the shown setup are over a traditional 2N setup?

Best,

Niels

(CID:104173655)

[DCIM_Support]

Thanks for the help. I will change my model and I will let you know. I must explain, that only I am learning the use DCO now and in my model I used BYPASS-UPS, but it is physical bypass of our UPS powered from the outside grid. Best regards, Zenon

(CID:104173666)

[DCIM_Support · Accepted solution]

Hi,

I change my model as this way as in the picture below:

and "Reserved capacity" of the BYPASS-UP is the same as the UPS.

Thanks for the help.

Best regards,

Zenon

(CID:104173692)

[DCIM_Support]

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