Settings - Siemens SIPROTEC 6MU805 User Manual

Functions
2.1 General
Current Clipping Limit Ratio
Address 0480 ClipC informs the ratio of the clipping limit of the instantaneous current to the rated primary
voltage multiplied with a square root of two. For example "clip=20" applied with rated primary current of
IP =500A
r RMS
limit may saturate analogue circuits and/or digital filters within the instrument transformer resulting in highly in-
accurate sampled values
Voltage Clipping Limit Ratio
Address 0481 ClipV informs the ratio of the clipping limit of the instantaneous voltage to the rated primary
voltage multiplied with a square root of two. For example "clip=2" applied with rated primary voltage of UP
kV means clipping may occur at ±14.14 kV
RMS
may saturate analogue circuits and/or digital filters within the instrument transformer resulting in highly inaccu-
rate sampled values
Nominal Values of Voltage Transformers (VTs) (Only For 1-phase System)
Currently 4 channels voltage are supported. Every channel has its own configuration. Address 0570, 0572, 0574,
0576 are for Channel Rated Primary Volatge Values, and Address 0571, 0573, 0575, 0577 are for Channel Rated
Second Voltage Values. At these addresses, information is entered regarding to the primary nominal voltage
and secondary nominal voltage (phase independent) of the connected voltage transformers

2.1.2.3 Settings

The table indicates region-specific default settings.
For clear reference, parameters for 1-phase and 3-phase are listed respectively.
Table 3: Settings for 3-phase Ratio
Addr.
0202
0203
0204
0205
0206A Vph/Vdelta
0214
0217
0218
0325
0333
0352
0369
24
means clipping will occur at ±14140A
Parameter
Vnom PRIMARY
Vnom
SECONDARY
CT PRIMARY
CT SECONDARY
Rated Frequency
Ignd-CT PRIM
Ignd-CT SEC
Vnom sec Vx
Vnom prim Vx
U4 inverting
VT Con Type
Primary currents with magnitude above the clipping
PEAK.
. Primary voltages with magnitude above the clipping limit
PEAK
Setting Options Default Setting
0.10 .. 800.00 kV 20.00 kV
34 .. 400 V 100 V
10 .. 25000 A 400 A
1 A 1 A
5 A
1.00 .. 3.00 1.73
50 Hz 50 Hz
60 Hz
1 .. 25000 A 400 A
1 A 1 A
5 A
34 .. 230 V 100 V
0.10 .. 800.00 kV 20.00 kV
YES NO
NO
Conventional Conventional
Comments
Rated Primary Voltage
Rated Secondary Voltage (L-L)
CT Rated Primary Current
CT Rated Secondary Current
Matching ratio Phase-VT To
Open-Delta-VT
Rated Frequency
Ignd-CT rated primary current
Ignd-CT rated secondary
current
Rated Secondary Voltage Vx
Rated Primary Voltage Vx
U4 inverting
Voltage Connection Type
SIPROTEC, 6MU805, Manual
C53000-G1140-C380-5, Release date 06.2018
=5
r