Siemens Siprotec 7UM611 User Manual

4 Technical Data
332
7UM61 Manual
C53000-G1176-C127-3
4.18 100-%-Stator Earth Fault Protection with 3rd Harmonics (ANSI
27/59TN 3rd Harm.)
Setting Ranges / Increments
Times
Dropout Ratios
Tolerances
Influencing Variables
Pickup Value for 3rd Harmonic in Undervolt-
age Stage U
0 (3. Harmon.)
<
0.2 V to 40.0 V Increments 0.1V
Pickup Value for 3rd Harmonic in Undervolt-
age Stage U
0 (3. Harmon.)
>
0.2 V to 40.0 V Increments 0.1V
Delay Time T
SEF (3rd HARM)
0.00 s to 60.00 s
or ∞ (ineffective)
Increments 0.01 s
Enabling conditions
P/P
min
> 0 % to 100 %
or (ineffective)
Increments 1 %
U/U
1 min
> 50.0 V to 125.0 V
or (ineffective)
Increments 0.1V
Pickup Times approx. 80 ms
Dropout Times approx. 80 ms
Undervoltage stage U0 (3rd Harmon.)< approx. 1.10 or 0.1 mA
Overvoltage stage U0 (3rd Harmon.)> approx. 0.90 or 0.1 mA
Enabling conditions
P/P
min
> approx. 0.90
U/U
1 min
> approx. 0.95
Displacement Voltage 3 % of setting value or 0.1 V
Delay Time T
SEF (3rd HARM)
1 % of setting value or 10 ms
Power Supply DC Voltage in Range
0,8 ≤ U
PS
/U
PSN
≤ 1.15
≤ 1 %
Temperature in Range
23°F or –5 °C ≤ Θ
amb
≤ 131°F or 55 °C
≤ 0.5 % / 10 K
Frequency in Range
0,95 ≤ f/f
N
≤ 1.05
≤ 1 %
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Siemens Siprotec 7UM611 Specifications

General

Brand	Siemens
Model	Siprotec 7UM611
Category	Relays
Language	English