Directional Time-Overcurrent Protection, Phases - Siemens 6MD85 Manual

11.10

Directional Time-Overcurrent Protection, Phases

Setting Values for the Function
Rotation angle of the reference
voltage
Setting Values for All Stage Types
Directional mode
Method of measurement
Threshold value
Setting Values for the Definite Time-Overcurrent Protection Stage Type
Dropout ratio
Time delay
Dropout delay
Setting Values for the IEC/ANSI Characteristic Curve Stage Type (Inverse-Time)
Type of characteristic curve
Dropout
Time multiplier
Minimum time of the curve
Additional time delay
Dropout Ratio for the IEC/ANSI Characteristic Curve Stage Type (Inverse-Time)
Disk emulation
Time multiplier
Setting Values for Stage Type with User-Defined Characteristic Curve (Inverse Time)
Time multiplier
Number of value pairs for the operate
characteristic curve
X values of the operate curve
Y values of the operate curve
Number of value pairs for the dropout
characteristic curve
X values of the dropout characteristic
curve
62 If you have selected the method of measurement = RMS value, do not set the threshold value under 0.1 l
SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017
-180 o
1 A @ 50 and 100 Irated
62
5 A @ 50 and 100 Irated
1 A @ 1.6 Irated
5 A @ 1.6 Irated
11.10 Directional Time-Overcurrent Protection, Phases
to +180 o
Forward
Backward
Fundamental component
RMS value
0.030 A to 35.000 A
0.15 A to 175.00 A
0.001 A to 1.600 A
0.005 A to 8.000 A
0.90 to 0.99
0.00 s to 60.00 s
0.00 s to 60.00 s
Characteristic curves according to IEC (see
(see Table 11-4)
Disk emulation
Instantaneous
0.00 to 15.00
0.00 to 1.00 s
0.00 to 60.00 s
Approx. 0.90 * threshold value
Approx. 1.05 * threshold value
Approx. 0.95 * pickup value
0.05 to 15.00
2 to 30
1.00 to 66.67 p. u.
0.00 s to 999.00 s
2 to 30
0.05 to 0.95 p. u.
Technical Data
Increments of 1 o
–
–
Increments of 0.001 A
Increments of 0.01 A
Increments of 0.001 A
Increments of 0.001 A
Increments of 0.01
Increments of 0.01 s
Increments of 0.01 s
Table 11-3) and ANSI
–
Increments of 0.01
Increments of 0.01 s
Increments of 0.01 s
Increments of 0.01
Increments of 1
Increments of 0.01 p.u.
Increments of 0.01 s
Increments of 1
Increments of 0.01 p.u.
.
rated,sec
1133