Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Buck & boost transformer
Buck & boost transformer
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
Reply
 
Thread Tools Search this Thread
Old 14th March 2004, 05:28 PM   #1
Ilianh is offline Ilianh  Canada
diyAudio Member
 
Ilianh's Avatar
 
Join Date: Oct 2002
Location: Montreal, Canada
Send a message via MSN to Ilianh
Default Buck & boost transformer

I stumbled upon a 1.5KVA transfo, primary is 240/480V and secondary is 29/48V.


Its an outdoor transformer, with the whole thing being stuck into some kind of sand concrete and in a metal box....

Anyone knows what are those used normaly.. And any ideas on what interesting projects it could be used?

Thanks.
__________________
Time is the best teacher; unfortunately, it kills all its students
  Reply With Quote
Old 15th March 2004, 06:03 AM   #2
Da5id4Vz is offline Da5id4Vz  United States
diyAudio Member
 
Da5id4Vz's Avatar
 
Join Date: Feb 2003
Location: lost in america...
Send a message via AIM to Da5id4Vz
I had the misfortune of building computer rooms and recording studios in a building that required these things.

The building was fed with an archaic 3 phase power format referred to as "high leg". It was a three-phase Y primary with two legs measuring 208VAC to ground and the third leg measuring 240 to ground.

The buildings 40+ HVAC units ran just fine on this stuff. Wherever I needed to run a big isolation transformer or UPS is where the bucking transformers came in.

At the primary side to the isolation transformer, one or these things would be attached to the high leg. The output was attached out of phase back on to the leg causing it to drop down to, about 208 volts.

When it was time for the local utility to upgrade the transformers to our building, it was heartbreaking that I couldn’t coordinate a transfer to a regular three-phase service. Those things were tremendously inefficient.

I did find myself with a bunch of extras at one point. Too small for boat anchors and too heavy for doorstops, they went to the landfill.

Perhaps you can find a better use than I did.
  Reply With Quote

Reply


Buck & boost transformerHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
How to wire a 'Buck' transformer johnm Power Supplies 40 20th May 2011 09:02 PM
[enquiry] Treble Boost/High frequency Boost circuitry elnino86 Parts 2 18th December 2008 12:33 PM
Buck boost regulator TUBESMAN Power Supplies 0 21st January 2008 04:04 AM
most bang-for-the-buck sub-amp skogs Solid State 12 8th September 2007 10:22 AM
buck regulator jamesrnz Power Supplies 13 11th June 2007 06:12 PM


New To Site? Need Help?

All times are GMT. The time now is 04:08 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki