Siemens siprotec 7SA522 User Manual

2 Functions
174
7SA522 Manual
C53000-G1176-C155-3
3150 3I0p InrushBlk NO
YES
NO Inrush Blocking
3151 IEC Curve Normal Inverse
Very Inverse
Extremely Inv.
LongTimeInverse
Normal Inverse IEC Curve
3152 ANSI Curve Inverse
Short Inverse
Long Inverse
Moderately Inv.
Very Inverse
Extremely Inv.
Definite Inv.
Inverse ANSI Curve
3153 LOG Curve Log. inverse Log. inverse LOGARITHMIC Curve
3154 3I0p Startpoint 1.0 .. 4.0 1.1 Start point of inverse char-
acteristic
3155 k 0.00 .. 3.00 sec 0.50 sec k-factor for Sr-characteristic
3156 S ref 1 .. 100 VA 10 VA S ref for Sr-characteristic
3160 POLARIZATION U0 + IY or U2
U0 + IY
with IY only
with U2 and I2
zero seq. power
U0 + IY or U2 Polarization
3162A Dir. ALPHA 0 .. 360 ° 338 ° ALPHA, lower angle for
forward direction
3163A Dir. BETA 0 .. 360 ° 122 ° BETA, upper angle for
forward direction
3164 3U0> 0.5 .. 10.0 V 0.5 V Min. zero seq.voltage 3U0
for polarizing
3165 IY> 1A 0.05 .. 1.00 A 0.05 A Min. earth current IY for po-
larizing
5A 0.25 .. 5.00 A 0.25 A
3166 3U2> 0.5 .. 10.0 V 0.5 V Min. neg. seq. polarizing
voltage 3U2
3167 3I2> 1A 0.05 .. 1.00 A 0.05 A Min. neg. seq. polarizing
current 3I2
5A 0.25 .. 5.00 A 0.25 A
3168 PHI comp 0 .. 360 ° 255 ° Compensation angle PHI
comp. for Sr
3169 S forward 0.1 .. 10.0 VA 0.3 VA Forward direction power
treshold
3170 2nd InrushRest 10 .. 45 % 15 % 2nd harmonic ratio for
inrush restraint
3171 Imax InrushRest 1A 0.50 .. 25.00 A 7.50 A Max.Current, overriding
inrush restraint
5A 2.50 .. 125.00 A 37.50 A
3172 SOTF Op. Mode PICKUP
PICKUP+DIRECT.
PICKUP+DIRECT. Instantaneous mode after
SwitchOnToFault
3173 SOTF Time DELAY 0.00 .. 30.00 sec 0.00 sec Trip time delay after SOTF
Addr. Parameter C Setting Options Default Setting Comments

Siemens siprotec 7SA522 Specifications

General

Brand	Siemens
Model	siprotec 7SA522
Category	Protection Device
Language	English