Stator Earth Fault Protection With 3Rd Harmonics (Ansi 27/59Tn 3Rd Harm.) - Siemens Siprotec 7UM611 Manual

4 Technical Data
4.18 100-%-Stator Earth Fault Protection with 3rd Harmonics (ANSI
27/59TN 3rd Harm.)
Setting Ranges / Increments
Times
Dropout Ratios
Tolerances
Influencing Variables
332
Pickup Value for 3rd Harmonic in Undervolt-
age Stage U <
0 (3. Harmon.)
Pickup Value for 3rd Harmonic in Undervolt-
age Stage U >
0 (3. Harmon.)
Delay Time T
SEF (3rd HARM)
Enabling conditions
P/P >
min
U/U >
1 min
Pickup Times
Dropout Times
Undervoltage stage U0 (3rd Harmon.)<
Overvoltage stage U0 (3rd Harmon.)>
Enabling conditions
P/P >
min
U/U >
1 min
Displacement Voltage
Delay Time T
SEF (3rd HARM)
Power Supply DC Voltage in Range
0,8 ≤ U ≤ 1.15
/U
PS PSN
Temperature in Range
23°F or –5 °C ≤ Θ ≤ 131°F or 55 °C
amb
Frequency in Range
0,95 ≤ f/f ≤ 1.05
N
0.2 V to 40.0 V
0.2 V to 40.0 V
0.00 s to 60.00 s
or ∞ (ineffective)
0 % to 100 %
or (ineffective)
50.0 V to 125.0 V
or (ineffective)
approx. 80 ms
approx. 80 ms
approx. 1.10 or 0.1 mA
approx. 0.90 or 0.1 mA
approx. 0.90
approx. 0.95
3 % of setting value or 0.1 V
1 % of setting value or 10 ms
≤ 1 %
≤ 0.5 % / 10 K
≤ 1 %
Increments 0.1V
Increments 0.1V
Increments 0.01 s
Increments 1 %
Increments 0.1V
7UM61 Manual
C53000-G1176-C127-3