Rotor Earth Fault Protection R, Fn (Ansi 64R) - Siemens SIPROTEC 7UM62 Manual

Technical Data

4.27 Rotor Earth Fault Protection R, fn (ANSI 64R)

4.27 Rotor Earth Fault Protection R, fn (ANSI 64R)
Setting Ranges / Increments
Alarm Stage R
Tripping Stage R
Delay Times
T
RE ALARM
T
RE TRIP
Reactance in X
in coupling circuit (capacitive)
Resistance in R
Pickup value of I RE< disturbance indication
Correction angle W0 I RE
for rotor earth fault current
Admissible Rotor Earth Capacity C
For the tolerances stated, and for
detecting an interruption of the measuring circuit
Admissible Operating Range of Injected Voltage
(Alarm U < at U ≤ 20 V)
RE
Times
Pickup Times
- Alarm Stage, Tripping Stage
Dropout Times
- Alarm Stage, Tripping Stage
Dropout Ratios
R , R
E ALARM E TRIP
Alarm I <
RE
Alarm U <
RE
502
E ALARM
E TRIP
COUPLING
in coupling circuit
BRUSHES
E
3.0 kΩ to 30.0 kΩ
1.0 kΩ to 5.0 kΩ
0.00 s to 60.00 s
or ∞ (ineffective)
0.00 s to 60.00 s
or ∞ (ineffective)
–100 Ω up to 800 Ω
0 Ω up to 999 Ω
1.0 mA to 50.0 mA
or 0.0 (stage is inactive)
-15.0° to +15.0°
0.15 µF ≤ C ≤ 3.0 µF
E
AC 20 V to 100 V
≤ 80 ms
≤ 80 ms
approx. 1.25
approx. 1.20 or 0.5 mA dropout difference
approx. 5 V dropout difference
C53000-G1176-C149-7, Release date 03.2010
Increments 0.1 kΩ
Increments 0.1 kΩ
Increments 0.01 s
Increments 0.01 s
Increments 1 Ω
Increments 1 Ω
Increments 0.1 mA
Increments 0.1°
SIPROTEC, 7UM62, Manual