Flexible Protection Functions - Siemens 7SC80 Manual

Technical Data

4.20 Flexible Protection Functions

4.20 Flexible Protection Functions
Measured Values/Modes of Operation
Three-phase
Single-phase
without fixed phase reference
Method of measurement for Ι, V
Pickup when
Setting Ranges/Increments
Pickup thresholds:
Current Ι, Ι , Ι , 3Ι
1 2
RatioΙ /Ι
2 1
Voltage V, V , V
1
Displacement voltageV
Power P, Q
Power factor cosφ
Frequency
Frequency change df/dt
Jump detection (diff. fundamental component)
Dropout ratio > element
Dropout ratio < element
Dropout difference f
Pickup delay (standard)
Pickup delay forΙ
Command delay time
Dropout delay
1) For LPS devices, the voltage V (including 3-phase and 1-phase) is recommended to be set as or higher than
10V.
Function Limits
Power measurement 3-phase
Power measurement 1-phase
558
, Ι for Ι = 1 A
0 N N
for Ι = 5 A
N
, 3V
2 0
N
for Ι = 1 A
N
for Ι = 5 A
N
for f = 50 Hz
Nom
for f = 60 Hz
Nom
/Ι
2 1
for Ι
Nom
for Ι
Nom
for Ι
Nom
for Ι
Nom
Ι, 3Ι , Ι1, Ι2, Ι2/Ι1, V, 3V
0
reverse, Q forward, Q reverse, cosφ
, Ι , V, V
Ι, Ι
N N2
forward, Q reverse, cosφ
f, df/dt, binary input
Fundamental component,
true RMS value,
positive-sequence system,
negative-sequence system,
zero-sequence system
exceeding threshold value or
falling below threshold value
0.05 A to 40.00 A
0.25 A to 200.00 A
15 % to 100 %
2.0 V to 260.0 V 1)
2.0 V to 200.0 V
2.0 W to 10000 W
10 W to 50000 W
-0.99 to +0.99
40.0 Hz to 60.0 Hz
50.0 Hz to 70.0 Hz
0.10 Hz/s to 20.00 Hz/s
5 % to 100 %
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 28800.00 s
0.00 s to 3600.00 s
0.00 s to 60.00 s
= 1 A Positive-sequence current > 0.03 A
Positive-sequence current > 0.15 A
= 5 A
= 1 A Phase current > 0.03 A
= 5 A Phase current > 0.15 A
E50417-G1140-C486-A8, Edition 07.2017
, V1, V2, P forward, P
0
, P forward, P reverse, Q
N
Increments 0.01 A
Increments 1%
Increments 0.1 V
Increments 0.1 V
Increments 0.1 W
Increments 0.01
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 Hz/s
Increments 1%
Increments 0.01
Increments 0.01
Increments 0.01 Hz
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
SIPROTEC Compact, 7SC80, Manual