Issue February 2002
Document Number: 13124
- 22 -
Type of measuring voltage
Display
Phase / Neutral
L-0
Phase / Phase
L-L
If
RST
is selected (see page 20),
L-0
is reset.
6.3.3. Parameter
-3-
: Connection of measuring voltage
The connection of the measuring voltage needs to be indicated only in case of semi-automatic (=
AU2
)
and manual initialization (=
AU3
). The table shows all the possible connection combinations to the
terminals 12 and 10 of the
ESTAmat PFC
Controller.
Setting value as a function
of the C.T. location
Connection of
measuring
voltage
L1
L2
L3
L1 – N
L1-0
L3-0
L2-0
L2 – N
L2-0
L1-0
L3-0
L3 – N
L3-0
L2-0
L1-0
N - L1
0-L1
0-L3
0-L2
N - L2
0-L2
0-L1
0-L3
N - L3
0-L3
0-L2
0-L1
L1 - L2
L1L2
L3L1
L2L3
L2 - L3
L2L3
L1L2
L3L1
L3 - L1
L3L1
L2L3
L1L2
L2 - L1
L2L1
L1L3
L3L2
L3 - L2
L3L2
L2L1
L1L3
L1 - L3
L1L3
L3L2
L2L1
If
RST
is selected (see page 20),
U-0
is reset.
The identifiers L1-N, L2-N, etc. indicate the connection of the measuring voltage. The setting value
has to be read in the column which indicates the correct C.T. phase.
6.3.4. Parameter
-4-
: Type of switching program
The switching program has to be set only in case of the manual initialization mode (=
AU3
) . The
figures indicate the relation between the various step outputs. For example, the switching program
1:2:4:4:4 reveals that step 2 is double the size of step 1. Step 3 and the following steps have four times
the output of step 1 (e.g.: 50kvar : 100kvar : 200kvar : 200kvar ... etc.). The steps with equal output are
regarded also as equal with regard to controlling (=circular steps) and can be switched in accordance
with the principle of circular switching.
