| Arc Flash Forum https://brainfiller.com/arcflashforum/ |
|
| Modeling PDUs https://brainfiller.com/arcflashforum/viewtopic.php?f=23&t=6468 |
Page 1 of 1 |
| Author: | NeDCE [ Fri Jul 31, 2026 8:59 am ] |
| Post subject: | Modeling PDUs |
How do you guys typically model PDUs? Do you model each component like an individual component? do you model the wiring in-between? For example, a recent project includes an IT floor with CRACs, PDUs, and server equipment. A typical trunk might include a distribution panel feeding a number of PDUs, which comprise a 480V, 200A breaker>few feet of conductor>transformer>two "panel" main 225A breakers>misc. branch circuit breakers, including one 3-pole 100a breaker which feeds a subsequent panel 20'-150' away. I'm inclined to model each component, however the PDU transformers have no impedance numbers on their nameplates. I know transformers of that size typically range from 2-5%, but I've also heard that PDU transformers tend to have lower impedances. Do you guys typically model every component or treat them as a single component? |
|
| Author: | mparenteau [ Fri Jul 31, 2026 12:47 pm ] |
| Post subject: | Re: Modeling PDUs |
Every component... Mike |
|
| Page 1 of 1 | All times are UTC - 7 hours |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|