I need some buck boost transformer help?

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W4AJF
Posts: 347
Joined: Fri Mar 21, 2003 3:57 pm

I need some buck boost transformer help?

Post by W4AJF » Sat Dec 10, 2011 1:22 am

Hi all, I have a 240VAC line in my house but want to use some equipment that works "better" at 225VAC or 230VAC or so. I know there are "buck" transformer that can do that. I would like to get one in the neighborhood of 20A, anyone out there familiar and can point me and perhaps help with a model number, it's a little confusing.

Thanks for any help.

Adam Farber W4AJF
Woodland Hills, CA
adamf@eeco.com

KB3LMV
Posts: 45
Joined: Sun May 31, 2009 2:40 am
Location: Melrose Fl.

Buck Boost Transformers

Post by KB3LMV » Tue Dec 13, 2011 7:21 pm

Hi Adam
A Buck Boost Transformer is a 1-1 (isolation)& 10-1 (stepdown) connected in series.Hv+Lv (in phase Boost),Hv-Lv (180 out Buck)
Acme,Federal Pacific,&Hammond all manufacture 5KVA units,but be prepared to part with at least $600.A 120/240x12/24 will deliver 218 or 229 VAC from a 240 source depending on tap settings.Models include Acme T-1-81051 ,F/P SB12N5F,or Hammond QC50ERCB.
By connecting HV windings in series (240 V ) & LV windings in paralell(12v) 180 out of phase(bucking) produces 228 VAC.
Hope this info helps.
73 4 now
Paul Kb3lmv[/i]
Paul KB3LMV

W4AJF
Posts: 347
Joined: Fri Mar 21, 2003 3:57 pm

Buck Boost

Post by W4AJF » Tue Dec 13, 2011 7:28 pm

Hi Paul, I was about to update the post but I appreciate your reply. I bought an Acme T-1-81058, wiring was a little tricky but with my 240VAC in I got exactly 225.3VAC out which is perfect for me, should handle about 16A at that voltage which also is great for me.

Thanks for caring!

Adam Farber W4AJF
Woodland Hills, CA

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