ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
110.26
by gfretwell. 02/18/18 12:14 AM
2018 Code Explained
by Potseal. 02/14/18 03:16 PM
Air Compressor feeder conductor sizing
by Potseal. 02/14/18 03:11 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 23 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Unequal tapping of a dual primary transformer. #205909
04/23/12 02:16 PM
04/23/12 02:16 PM
L
LarryC  Offline OP
Member
Joined: Jul 2004
Posts: 783
Winchester, NH, US
Question for you folks.

I have some dual primary / dual secondary transformers with a voltage tap on the primary windings. The primaries are wound for 120 V with a tap at 100 Volts. If I want to use them at full rated power and my supply voltage was 220 V, would I run into issues if I series the primaries with one wired for 120 V and other on wired for 100 Volts?

The units are AMVECO MT3750DS torroids.

Thanks.

Larry C

Work Gear for Electricians and the Trades
Re: Unequal tapping of a dual primary transformer. [Re: LarryC] #205910
04/23/12 02:49 PM
04/23/12 02:49 PM
G
geoff in UK  Offline
Member
Joined: Dec 2002
Posts: 186
UK
I wouldn't forsee any problem with what you propose, provided the transformer is designed to give "full rated power" when used on the 100v taps.
Its just like having one primary tapped 100/120/220/240.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
richard
richard
L.I. New York
Posts: 95
Joined: August 2003
Show All Member Profiles 
Top Posters(30 Days)
Admin 9
Popular Topics(Views)
244,015 Are you busy
181,009 Re: Forum
171,258 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.014s Queries: 15 (0.003s) Memory: 0.9421 MB (Peak: 1.0606 MB) Zlib enabled. Server Time: 2018-02-19 04:03:50 UTC