Ingeteam
INGEREV SMART DLM
10
ABW2012IQM01_A
Power supply to wattmeter A65+
Power the wattmeter as indicated.
Current transformers
In order to correctly select the current transformers, you should consider the parameters indicated
below:
I
p
: Rated primary current (A)
The rated primary current must be more than or equal to the maximum current per phase in the
system.
I
s
: Rated secondary current (A)
Value of the rated secondary current of the current transformer.
The rated current of the wattmeter to which the transformer secondary is to be connected is In = 5 A
and the maximum current of the same is Imax = 10 A.
In order to ensure the accuracy of the wattmeter measurement, it will be necessary to use at least one
current transformer with a rated secondary current of Is = 5 A.
For transformers with a rated secondary current of less than 5 A, Ingeteam
does not guarantee the accuracy and correct operation of the SMART DLM.
You must not use a transformer with a rated secondary current of more than
the maximum wattmeter current, in other words 10 A,