Quantcast
Figure 15    Three-Phase To Single-Phase Connections

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Custom Search
 
  
 
Electrical Distribution Systems WIRING SCHEMES AND GROUNDING The first scheme (Figure 15A) provides for the connection of the load from a phase leg to any Figure 15    Three-Phase To Single-Phase Connections ground  point  and  is  referred  to  as  a  phase-to-ground  scheme.   The  remaining  scheme  (Figure 15B)  connects  the  single-phase  load  between  any  two  legs  of  the  three-phase  source  and  is referred to as a phase-to-phase connection.   The choice of schemes, phase-to phase or phase-to- ground, allows several voltage options depending on whether the source three-phase system is a delta or wye configuration.   This will be discussed in the three-phase segment of this chapter. The only approved method of wiring single-phase power is the scheme commonly referred to as the 3-wire, single-phase Edison system.  The illustration in Figure 16 depicts the use of a center- tapped transformer, with the center tap grounded, providing half voltage (120 V) connections on either side or full voltage (240 V) across both sides. Rev. 0 Page 23 ES-15



   


Privacy Statement - Copyright Information. - Contact Us

comments powered by Disqus

Integrated Publishing, Inc.
9438 US Hwy 19N #311 Port Richey, FL 34668

Phone For Parts Inquiries: (727) 755-3260
Google +