Electrical Panels

[lonewolfjustin]

I got this email from one of our Electrical Engineers. Below is what he is wanting but I haven't figured out a way to build it for him. The problem I think is that with a panelboard family it doesn't give you a secondary distribution system. But a transformer family does give you the secondary, but then it doesn't have a panel schedule. Have any of yall found a way around this. If you need more info let me know, Thanks!
_______________________________________________________________________

I need the Operating Room Isolation Power Panels to have the following properties:
1. 480V, 1-Phase, 2-Pole Input Voltage.
2. 208V, 1-Phase, 2-Pole Output Voltage.
3. Transformer Information: 480V, 1-Phase to 208V, 1-Phase.
4. The panel schedule shall have all 120V 2-Pole loads.

These are power isolation panels installed in Operating and C-Section Rooms which measure the stray grounding current and isolate the O.R./C-section room grounding system from the rest of the building’s grounding electrode system. The isolation panels are manufactured by Square D and are found in the Medical Products section of the Square D digest. Since it is basically a transformer and panel combined, it may need to be built as two separate families (transformer and panel).

[csutton2181]

I have been trying to figure this out as well and have had no success. I have tried making a nested family with a panelboard and a transformer, but I can not get the nested property, whether that is the transformer secondary voltage or the panel schedule. I also seem to crash Revit many times when I try this as well. I would be very interested in anyone else's ideas, especially on nested families and if this would work and how.

[mjdanowski]

I would make a panelboard family, and then make a transformer family.

Have them both hosted on the wall, and make it so when you add the two you get the specified size. Treat the transformer and panelboard as two different entities. Remember that this isn't too far from the case as well, as many isolation systems have remote isolation transformers.

[mjdanowski]

Well the good news is you can logically create an isolated power system within Revit, you just have to set up your distribution systems correctly.

The bad news is it forces you into a two-wire configuration as shown below. Not quite accurate, but not the biggest problem around considering.

[lonewolfjustin]

Thanks mjdanowski, I will pass this on to him to see if it helps.

[aryan.vasani079759019]

You give such a nice information about .. It is too good to study for same subject.. Thanx