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

Topic Options
Rate This Topic
#193109 - 03/19/10 04:35 AM Transformers & Feeders: 1 Phase 2 Wire
Scott35 Offline

Broom Pusher and
Member
Registered: 10/19/00
Posts: 2707
Loc: Anaheim, CA. USA
Transformers & Feeders: 1 Phase 2 Wire

Drawings of Transformer Setups (Connection Schemes);
Primary and Secondary Feeders;
& OCPDs and Panelboards for:
Single Phase 2 Wire Transformers
(Single Voltage SDS)
NOTE: Click on Image to view Full-Sized Image

Drawing 1PH2W-1: 480V x 240V 1 Phase 2 Wire System - Center Tap Grounded
(Max. Voltage To Ground = 120V, no Grounded Conductor)


Drawing 1PH2W-2: 480V x 120V 1 Phase 2 Wire System - Center Tap Grounded
(Max. Voltage To Ground = 60V, no Grounded Conductor)


Drawing 1PH2W-3: 480V x 240V 1 Phase 2 Wire System - Line 1 Grounded
(Max. Voltage To Ground = 240V, Line 1 = Grounded Conductor)


Drawing 1PH2W-4: 480V x 240V 1 Phase 2 Wire System - Ungrounded
(Max. Voltage To Ground = 0V, no Grounded Conductor)
_________________________
Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
Top
Test Equipment:
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement
Large Selection of Test Equipment For Electrical, HVAC, Test & Measurement

Member Spotlight
Member Since: 04/03/02
Posts: 6775
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 14 Guests and 7 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