mounting toroid xfrmr

albireo13 · 19th March 2010, 11:24 AM

Instead of mounting the pwr xfrmr with a central bolt, I plan on attaching it to the bottom with several blobs of RTV. RTV is very tenacious and will provide mechanical compliance ... sort of like riding on cushions, or pillows. This should decouple chassis from any xfrmr vibration.

Rob

pacificblue · 19th March 2010, 07:21 PM

Isn't that a kind of silicone? Will it be strong enough to hold the transformer in place, when you incline or drop the chassis or when you turn it around?

AltecDarpa · 19th March 2010, 08:38 PM

wont the warming and cooling of the trafo have an adverse effect on the adhesive over time?

wakibaki · 19th March 2010, 10:04 PM

So, is this a warning if we come round to your place? A disclaimer of liability?

Yes, you can, but it's ill-advised. It's connected to the mains, it's heavy and it may come free unexpectedly at the wrong moment, perhaps when somebody else moves the assembly without unplugging it.

Secure the tx with the securing kit which should have come with it, ensuring you do not create a shorted turn.

w

wakibaki · 19th March 2010, 10:11 PM

If you supplement the silicone with a few cable-tie lashings it should be OK...

w

lanchile · 19th March 2010, 11:09 PM

Quote:

Originally Posted by albireo13

Instead of mounting the pwr xfrmr with a central bolt, I plan on attaching it to the bottom with several blobs of RTV. RTV is very tenacious and will provide mechanical compliance ... sort of like riding on cushions, or pillows. This should decouple chassis from any xfrmr vibration.

Rob

Do not "glue it" just use a bolt and put some rubber pads to isolate from chassis. Better safe than sorry!!!!

albireo13 · 20th March 2010, 10:56 AM

I think I'll use the bolt + have it sit on several pads of RTV for vibration isolation.
RTV is actually very tenacious. I've used it in the past for attaching telescope mirrors to their supports, 8-20lb loads which are tilted 90deg. and subjected to constant movement and transport. It is also used for assembling aquarium tanks.

Thx,
Rob

Speedskater · 20th March 2010, 05:05 PM

OK, but astronomers go to great lengths to reduce temperature cycling of their telescopes.

madisonears · 20th March 2010, 06:46 PM

Do you see any commercial designs with glued xformers? Wonder why?

Security first, then isolation.

Peace,
Tom E

19th March 2010, 11:24 AM	#1
albireo13 diyAudio Member Join Date: Feb 2010	mounting toroid xfrmr Instead of mounting the pwr xfrmr with a central bolt, I plan on attaching it to the bottom with several blobs of RTV. RTV is very tenacious and will provide mechanical compliance ... sort of like riding on cushions, or pillows. This should decouple chassis from any xfrmr vibration. Rob

19th March 2010, 07:21 PM	#2
pacificblue diyAudio Member Join Date: May 2008	Isn't that a kind of silicone? Will it be strong enough to hold the transformer in place, when you incline or drop the chassis or when you turn it around? __________________ If you've always done it like that, then it's probably wrong. (Henry Ford)

20th March 2010, 05:05 PM	#8
Speedskater diyAudio Member Join Date: Sep 2002 Location: Lakewood, Ohio	OK, but astronomers go to great lengths to reduce temperature cycling of their telescopes. __________________ Kevin

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Using toroid mounting bolt to secure PSU board?	mymindinside	Construction Tips	2	19th March 2010 03:00 AM
Mounting Hardware for Toroid	rtarbell	Parts	2	12th September 2008 09:56 AM
Toroid mounting getting hot ...	deduikertjes	Power Supplies	10	15th February 2007 05:21 PM
Toroid Mounting Caution	bzdang	Chip Amps	0	23rd April 2004 02:25 PM
toroid transformer mounting question	thoriated	Solid State	3	12th January 2004 04:45 AM


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

19th March 2010, 08:38 PM	#3
AltecDarpa diyAudio Member Join Date: Jun 2008	wont the warming and cooling of the trafo have an adverse effect on the adhesive over time?

19th March 2010, 10:04 PM	#4
wakibaki Banned Join Date: Jan 2008 Blog Entries: 2	So, is this a warning if we come round to your place? A disclaimer of liability? Yes, you can, but it's ill-advised. It's connected to the mains, it's heavy and it may come free unexpectedly at the wrong moment, perhaps when somebody else moves the assembly without unplugging it. Secure the tx with the securing kit which should have come with it, ensuring you do not create a shorted turn. w

19th March 2010, 10:11 PM	#5
wakibaki Banned Join Date: Jan 2008 Blog Entries: 2	If you supplement the silicone with a few cable-tie lashings it should be OK... w

20th March 2010, 10:56 AM	#7
albireo13 diyAudio Member Join Date: Feb 2010	I think I'll use the bolt + have it sit on several pads of RTV for vibration isolation. RTV is actually very tenacious. I've used it in the past for attaching telescope mirrors to their supports, 8-20lb loads which are tilted 90deg. and subjected to constant movement and transport. It is also used for assembling aquarium tanks. Thx, Rob

20th March 2010, 06:46 PM	#9
madisonears diyAudio Member Join Date: Sep 2007	Do you see any commercial designs with glued xformers? Wonder why? Security first, then isolation. Peace, Tom E

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read