Sensitive Rotor Earth Fault Protection With 1 To 3 Hz (Ansi 64R) - Siemens Siprotec 7UM62 Manual

4.26

Sensitive Rotor Earth Fault Protection with 1 to 3 Hz (ANSI 64R)

Setting Ranges/
Resolution
Inherent Operating
Times
Dropout
Tolerances
Influencing
Variables for
Pickup
7UM62 Manual
C53000-G1176-C149-3
4.26 Sensitive Rotor Earth Fault Protection with 1 to 3 Hz (ANSI 64R)
Warning Stage
Tripping Stage
Delay Time
Pickup Value of
Open Rotor Circuit
Pickup Time
Dropout Time
Resistance R
E
Charge Q <
C
Resistance
Charge
Delay Time
Permissible Rotor-Earth Capacitance
Power Supply Direct Voltage in Range
0.8 ≤ U ≤ 1.15
/U
H HN
Temperature in Range
–5 °C ≤ ϑ ≤ 55 °C
amb
Frequency in Range
0.95 ≤ f/f ≤ 1.05
N
Harmonics
– Up to 10 % 3rd Harmonics
– Up to 10 % 5th Harmonics
R 5 kΩ to 80 kΩ
E WARN
R 1 kΩ to 10 kΩ
E TRIP
0.00 s to 60.00 s
or ∞ (does not expire)
Q < 0.01 to 1.00 mAs
C
Approx. 1 to 1.5 s (depends on 7XT71)
Approx. 1 to 1.5 s
Approx. 1.25
1.2 or 0.01 mAs
Approx. 5 % or 0.5 kΩ at 0.15 µF≤C
Approx. 10 % or 0.5 kΩ at 1 µF≤C
5 % or 0.005 mAs
1 % or 10 ms
0.15 to 3 µF
≤ 1 %
≤ 0.5 %/10 K
≤ 1 %
≤ 1 %
≤ 1 %
(Increments 1 kΩ)
(Increments 1 kΩ)
(Increments 0.01 s)
(Increments
0.01 mAs)
< 1 µF
E
< 3µF
E
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