73
M
IXED MEASUREMENT
The reactive power caused by the transformer is measured by the medium-voltage current
measurement and is also controlled via the connected compensation system.
Procedure:
Connect the measurement of the
controller as shown on the diagram
opposite and start the automatic
initialisation (AI) (SETUP/100/Ai or
SETUP/207). The vector group of the
transformer
is
considered
automatically in the process.
NOTE: If the automatic initialisation
(AI) was not successful (the messages
Ai
/
abrt
are shown alternatingly on
the display), the phase correction
angle
must
be
set
manually
(SETUP/206).
The connection possibilities for the
most common transformer vector
groups and the phase correction angle
to be set are listed in the Annex
Connection for mixed measurement. If the phase correction angle was entered, the control must be
switched on (SETUP/100/OUt or SETUP/310) again, because it was switched inactive (“OFF”) by the
AI.
