back to the 75kVA in the Toilet Room
back to the 75kVA in the Toilet Room
(OP)
So this unit was hung below the ceiling in a single use Toilet Room. It was inspected no problems. Client wants to move the unit above the ceiling (staff are scared), remove the ceiling (required by Code) and treat the unit with a cover to mitigate the vibration. Any safe and popular options here that seem worthwhile chasing? The bottom of the unit will be around 13' AFF. Thanks






RE: back to the 75kVA in the Toilet Room
I know that this seems to be a little much, but it will assure that you do not inadvertently void or otherwise negatively impact the insurance on the building.
respectfully
RE: back to the 75kVA in the Toilet Room
RE: back to the 75kVA in the Toilet Room
These dry-type transformer put out a lot of heat - I would check installation instruction on how much air space is required around the unit.
How are you supporting the transformer?
RE: back to the 75kVA in the Toilet Room
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: back to the 75kVA in the Toilet Room
RE: back to the 75kVA in the Toilet Room
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: back to the 75kVA in the Toilet Room
I have seen it done for larger distrubition transformers in surburban areas. We tried to get it done for a diesel generator at a plant near some homes. The consultant had never done it but wanted to. I think he wanted us to pay for him to do some research and write a paper. The diesel has a very complex sound spectrum while a tranfromer is all 60 cycles and harmonics thereof.
They do make ear protection for shooting that produce cancellating sounds for gunshots so a 75 KVA transfrormer should be a piece of cake.
RE: back to the 75kVA in the Toilet Room
Inside the metal frame are alternating stripes of open air and dark colored foam, probably plastic. The openings are 1..2" in their shortest dimension, and the foam between them is similarly proportioned. Depth through the bulkhead is >4".
These are not quite what I had in mind, but the geometry is similar:
h
Mike Halloran
Pembroke Pines, FL, USA
RE: back to the 75kVA in the Toilet Room
Then to isolate it from transferring vibration to the building/space, mount it to a solidly made steel frame. Mount the transformer to the frame and the frame to the structure with sound and vibration absorbing "sandwich pads",(Type 'FP') and/or spring hanger,(Type 'CH') devices, by "CalDyn", (California Dynamics- www.caldyn.com).
There will always be some hum, but it can be minimized without installing an extravagant and experimental sound cancellation system. Remember, it's a toilet room. Pipe in some Muzak!
RE: back to the 75kVA in the Toilet Room
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: back to the 75kVA in the Toilet Room