Siemens siprotec 7SD5 User Manual page 230

2 Functions
Addr. Parameter
3151 IEC Curve
3152 ANSI Curve
3153 LOG Curve
3154 3I0p Startpoint
3155 k
3156 S ref
3160 POLARIZATION
3162A Dir. ALPHA
3163A Dir. BETA
3164 3U0>
3165 IY>
3166 3U2>
3167 3I2>
3168 PHI comp
3169 S forward
3170 2nd InrushRest
3171 Imax InrushRest
3172 SOTF Op. Mode
3173 SOTF Time DELAY
230
C Setting Options
Normal Inverse
Very Inverse
Extremely Inv.
LongTimeInverse
Inverse
Short Inverse
Long Inverse
Moderately Inv.
Very Inverse
Extremely Inv.
Definite Inv.
Log. inverse
1.0 .. 4.0
0.00 .. 3.00 sec
1A 1 .. 100 VA
5A 5 .. 500 VA
U0 + IY or U2
U0 + IY
with IY only
with U2 and I2
zero seq. power
0 .. 360 °
0 .. 360 °
0.5 .. 10.0 V
1A 0.05 .. 1.00 A
5A 0.25 .. 5.00 A
0.5 .. 10.0 V
1A 0.05 .. 1.00 A
5A 0.25 .. 5.00 A
0 .. 360 °
1A 0.1 .. 10.0 VA
5A 0.5 .. 50.0 VA
10 .. 45 %
1A 0.50 .. 25.00 A
5A 2.50 .. 125.00 A
PICKUP
PICKUP+DIRECT.
0.00 .. 30.00 sec
Default Setting
Normal Inverse IEC Curve
Inverse ANSI Curve
Log. inverse LOGARITHMIC Curve
1.1 Start point of inverse char-
acteristic
0.50 sec k-factor for Sr-characteris-
tic
10 VA S ref for Sr-characteristic
50 VA
U0 + IY or U2 Polarization
338 °
ALPHA, lower angle for
forward direction
122 °
BETA, upper angle for
forward direction
0.5 V Min. zero seq.voltage 3U0
for polarizing
0.05 A Min. earth current IY for
polarizing
0.25 A
0.5 V Min. neg. seq. polarizing
voltage 3U2
0.05 A Min. neg. seq. polarizing
current 3I2
0.25 A
255 °
Compensation angle PHI
comp. for Sr
0.3 VA Forward direction power
threshold
1.5 VA
15 % 2nd harmonic ratio for
inrush restraint
7.50 A Max.Current, overriding
inrush restraint
37.50 A
PICKUP+DIRECT. Instantaneous mode after
SwitchOnToFault
0.00 sec Trip time delay after SOTF
Comments
7SD5 Manual
C53000-G1176-C169-1