The Internet of Things (IIoT) offers unprecedented possibilities for industries. Stay ahead with EcoStruxure™ Plant and Machine.Learn more
...with the EcoStruxure™ Facility Expert (formerly known as Facility Hero) app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
The story behind the Shedd Aquarium, a smart, sustainable facility that connects people to animals, with EcoStruxure™.Discover how
Welcome to the Schneider Electric Global Website×
The Fundamental Phasor Readings Table in SMS displays incorrect values for a 3-Phase High-Leg Delta system, also referred to as: Red-leg, Stinger-leg, Center-Tap grounded, or Wild Leg. For a normal (3-wire) delta only L-L readings are available, however, a center tapped grounded connection delta system is considered to be a 4-wire system type (40 or 41 depending upon installation) and is treated as such by the meter. As such it is expected that the L-L voltage phases will have a 120 degree separation.
For a 3-phase 4-wire system (monitored by a PM800, CM3000, or CM4000), the fundamental phasor readings table will display L-N Voltages and not the L-L Voltages (Note, the neutral as shown is actually the ground). The A-N Voltage will have 180 degrees of separation from the C-N Voltage (assuming that B is the High Leg). Additionally, the B-N voltage (the high-leg) will have 90 degrees of separation for the other two L-N readings. See Figure 1 below for a typical example.
Sign up for all the latest solutions, offers and best practices straight to your inbox.
We are excited that you have joined the group. You will receive your welcome email soon describing the program and what to expect in the upcoming weeks. Enjoy!