Metering & Power Quality
Schneider Electric support forum about Power Meters (ION, PowerTag, PowerLogic) and Power Quality from design, implementation to troubleshooting and more.
Link copied. Please paste this link to share this article on your social media post.
Hello,
The PM8000 was set to delta and three-phase voltage was applied.
However, ION setup Phasor Viewer displays V32 180 degrees off.
Do you know why it appears like this?
The phasor is displayed properly in the web application.
Regards,
Miyai
Link copied. Please paste this link to share this article on your social media post.
Hi @Miyai
In Delta systems, the phasor diagram shown in two different methods:
1- System view(120° Delta) which all 3 phases are shown. 120 degree between all 3 phases.
2- Instrument view(60° Delta) which only 2 phases are shown as yours. 60 degree between V12 and V32.
This view can be changed in ION Setup -> Tools -> Options -> Conventions -> Delta Vector Display:
Best Regards,
-Mehran
L3 Expert Tech Support Specialist
Link copied. Please paste this link to share this article on your social media post.
Hi @Miyai
In Delta systems, the phasor diagram shown in two different methods:
1- System view(120° Delta) which all 3 phases are shown. 120 degree between all 3 phases.
2- Instrument view(60° Delta) which only 2 phases are shown as yours. 60 degree between V12 and V32.
This view can be changed in ION Setup -> Tools -> Options -> Conventions -> Delta Vector Display:
Best Regards,
-Mehran
L3 Expert Tech Support Specialist
Link copied. Please paste this link to share this article on your social media post.
There are 2 different users that typically use ION Setup: Utility electricians who are wiring up the PTs/CTs using the phasors to confirm the wiring: They care what the vectors look like on the secondary side (instrumentation view) of the PT/CT and all other users who only care what the phasors look like on the primary side (or system view).
For instrumentation view, the vectors in a typical 2 wire Delta will have a 60 degree angle difference between Vab (or V12) versus Vcb (or V32).
In system view, the vector for Vbc is flipped 180 degrees so its down in quadrant 3 at 240 degrees typically so there's a 120 degree difference between the 2 phases as expected.
Mehran shows where you can adjust which of these 2 ION Setup use cases you wish to use with the default being for the utility electrician.
Link copied. Please paste this link to share this article on your social media post.
Hi @Mehran_Mehrnia , @Robert_Lee
Thanks for your advice.
I was able to see the phasor display.
Best regards,
Miyai
Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.