Setting Notes
General
The data for parameters 209
PHASE SEQ.
, 210
TMin TRIP CMD
, 211
TMax CLOSE CMD
and 212
BkrClosed I MIN
can be entered directly at the device if it features an integrated or detached operator
panel: Press the MENU key to open the main menu. Apply the ▼ key to select SETTINGS and then press the ►
key to navigate to the SETTINGS display. To enter the Power System Data, select the
P.System Data 1
in
the SETTINGS menu.
Doubleclick Parameters under DIGSI to display the relevant selection. In doing so, a dialog box with tabs will
open under
P.System Data 1
where individual parameters can be configured. The following descriptions
are therefore structured according to these tabs.
Rated Frequency (Power System)
The nominal frequency of the system is set under the Address 214
Rated Frequency
. The factory pre-
setting in accordance with the model need only be changed if the device will be employed for a purpose other
than that which was planned when ordering.
Phase Rotation (Power System)
Address 209
PHASE SEQ.
is used to change the default phase sequence (
A B C
for clockwise rotation) if
your power system permanently has an anti-clockwise phase sequence (
A C B
. A temporary reversal of rota-
tion is also possible using binary inputs (see Section
Temperature Unit (Power System)
Address 276
TEMP. UNIT
allows displaying the temperature values either in degrees Celsius or in degrees
Fahrenheit.
Polarity of Current Transformers (Power System)
At address 201
CT Starpoint
, the polarity of the wye-connected current transformers is specified (the
following figure applies accordingly to two current transformers). This setting determines the measuring
direction of the device (forward = line direction). Changing this parameter also results in a polarity reversal of
the ground current inputs
Ι
N
or
Ι
NS
.
[polung-stromwandler-020313-kn, 1, en_US]
Figure 2-3
Polarity of current transformers
Current Connection
Ι
4 (Power System)
Here, it is communicated to the device whether the ground current of the current transformer neutral point is
connected to the fourth current input (
Ι
4
). This corresponds to the Holmgreen connection, (see connection
example in
). In this case, parameter 280
Holmgr. for Σi
is set to
YES
. In all other
2.1.3.2
Functions
2.1 General
SIPROTEC 4, 7SJ62/64, Manual
41
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
Page 8: ...8 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 18: ...18 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 30: ...30 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 540: ...540 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 594: ...594 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...
Page 720: ...720 SIPROTEC 4 7SJ62 64 Manual C53000 G1140 C207 8 Edition 08 2016 ...