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4.5
Flexible Protection Functions
Measured Values / Modes of Operation
Three-phase
Single-phase
Without fixed phase reference
Measurement method for V
Pickup on
Setting Ranges / Increments
Pickup thresholds:
Voltage V, V
, V
1
Displacement voltage V
Frequency
Frequency change df/dt
Voltage change dV/dt
Dropout ratio > element
Dropout ratio < element
Dropout difference f
Pickup delay (standard)
Command delay time
Dropout delay
Fixed Dropout Difference
Dropout difference df/dt
Dropout difference dV/dt
Times
Pickup times:
Voltage (phase quantities)
for 2 times the setting value
for 10 times the setting value
Voltage (symmetrical components)
for 2 times the setting value
for 10 times the setting value
Frequency
Frequency change for 1.25 times the setting value
Voltage change dV/dt for 2 times the setting value
Binary input
SIPROTEC 4, 7RW80, Manual
C53000-G1140-C233-4, Edition 07.2018
, 3V
2
0
0
for f
= 50 Hz
Nom
for f
= 60 Hz
Nom
V, 3V
, V1, V2, dV/dt
0
V, V
,V
N
x
f, df/dt, binary input
Fundamental,
r.m.s. value (true RMS),
positive sequence system,
negative sequence system,
zero sequence system
exceeding threshold value or
falling below threshold value
2.0 V to 260.0 V
2.0 V to 200.0 V
40.0 Hz to 60.0 Hz
50.0 Hz to 70.0 Hz
0.10 Hz/s to 20.00 Hz/s
4 V/s to 100 V/s
1.01 to 3.00
0.70 to 0.99
0.02 Hz to 1.00 Hz
0.00 s to 60.00 s
0.00 s to 3,600.00 s
0.00 s to 60.00 s
0.1 Hz/s
3 V/s
approx. 30 ms
approx. 20 ms
approx. 40 ms
approx. 30 ms
approx. 100 ms
approx. 220 ms
approx. 220 ms
approx. 20 ms
Technical Data
4.5 Flexible Protection Functions
Increments 0.1 V
Increments 0.1 V
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 Hz/s
Increments 1 V/s
Increments 0.01
Increments 0.01
Increments 0.01 Hz
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
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