For 3-wire, three-phase systems with 2 CTs, its required to connect terminal S2 = X2 of CT1 to the I2+ terminal of
the PM200/PM700 instead of the I1- (on the PM800).
The PM200/700’s firmware use the inverse of the residual current that goes into the I1-, I2- and I3- to know the actual
value of current for the third phase. This is not a calculation.It is rather an actual value.
By using N-1 CTs in power systems, it is possible to know the actual current value of N phases.
the PM200/PM700 instead of the I1- (on the PM800).
The PM200/700’s firmware use the inverse of the residual current that goes into the I1-, I2- and I3- to know the actual
value of current for the third phase. This is not a calculation.It is rather an actual value.
By using N-1 CTs in power systems, it is possible to know the actual current value of N phases.
Please refer the below wiring diagrams
Released for: Schneider Electric India
Need help?
Product Selector
Quickly and easily find the right products and accessories for your applications.
Get a Quote
Start your sales enquiry online and an expert will connect with you.
Where to buy?
Easily find the nearest Schneider Electric distributor in your location.
Help Centre
Find support resources for all your needs, in one place.
