ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#18792 - 12/14/02 01:07 PM Buck and boost transformers
Edward Offline
Member
Registered: 12/14/02
Posts: 308
Loc: California
I am planning to install a buck and boost transformer to buck 277 to 240 to operate two motors one @ 15 Amps and other @ 24 Amps single phase.
The NEC 99 does not state anything about the secondary protection do i need a load center/subpanel on the secondary side of the transformer to protect the two loads?
The NEC 99 450-4 does not say anything about that except not put a OCPD in series with the shunt winding.

Edward
_________________________
Thanks
Edward
Top
Work Gear for Electricians and the Trades
#18793 - 12/14/02 06:45 PM Re: Buck and boost transformers
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2527
Loc: West-Southern Inner-Northeast ...
Top

Member Spotlight
Member Since: 02/23/13
Posts: 204
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 59 Guests and 9 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 51
HotLine1 43
gfretwell 17
Trumpy 16
Ruben Rocha 13
 
Newest Members
clee512, Jdscott2005, FAIZAN, Regitest2, sureshazhagai

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals