Directional Intermittent Ground Fault Protection - Siemens SIPROTEC 4 Manual

Technical Data

4.16 Directional intermittent ground fault protection

4.16 Directional intermittent ground fault protection
Setting Ranges / Increments
Pickup threshold Vgnd> / 3V0>
Monitoring time after pickup detected
Pulse no. for detecting the interm. E/F
Dropout ratio
Dropout ratio Vgnd> / 3V0>
Tolerances
Measurement tolerance Vgnd> / 3V0>
Times
Influencing Variables
Power supply direct voltage in range 0.8 ≤ V
Temperature in range 23.00 °F (-5 °C) ≤ Θ
402
2.0 V .. 100.0 V
0.04 s ... 10.00 s
2 ... 50
0,95 or (pickup value - 0,6 V)
3 % of setting value
1 % of setting value or 10 ms
/V ≤ 1.15
PS PSNom
≤ 131.00 °F (55 °C)
amb
Increments 1 V
Increments 0.01 s
Increments 1
<1 %
<0,5 %/ K
SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017