Definite-Time Overcurrent Protection 50, 50N - Siemens 7SC80 Manual

4.2

Definite-Time Overcurrent Protection 50, 50N

Operating Modes
Three-phase
Two-phase
Method of Measurement
All elements
50-3, 50N-3
Setting Ranges/Increments
Current pickup 50-1, 50-2 (phases)
Current pickup 50-3 (phases)
Current pickup 50N-1, 50N-2
(ground)
Current pickup 50N-3 (ground)
Delay times T
Dropout delay times 50 T DROP-OUT, 50N T
DROP-OUT
Times
Pickup times (without inrush restraint, with inrush restraint + 1 cycle)
Fundamental component, RMS value
for setting value x 2
for setting value x 10
Instantaneous value
for setting value x 2
for setting value x 10
Dropout times
Fundamental component, RMS value
Instantaneous value
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Standard
Phases A and C
Fundamental wave, true RMS value
Additional instantaneous values
0.10 A to 35.00 A or ∞ (disabled)
for Ι =
Nom
1 A
0.50 A to 175.00 A or ∞ (disabled)
for Ι =
Nom
5 A
for Ι = 1.0 A to 35.00 A or ∞ (disabled)
Nom
1 A
for Ι = 5.0 A to 175.00 A or ∞ (disabled)
Nom
5 A
0.05 A to 35.00 A or ∞ (disabled)
for Ι =
Nom
1 A
for Ι = 0.25 A to 175.00 A or ∞ (disabled)
Nom
5 A
for Ι = 0.25 A to 35.00 A or ∞ (disabled)
Nom
1 A
1.25 A to 175.00 A or ∞ (disabled)
for Ι =
Nom
5 A
0.00 s to 60.00 s or ∞ (disabled)
0.00 s to 60.00 s
approx. 30 ms
approx. 20 ms
approx. 16 ms
approx. 16 ms
approx. 30 ms
approx. 40 ms
4.2 Definite-Time Overcurrent Protection 50, 50N
Increments
0.01 A
Increments
0.01 A
Increments
0.01 s
Increments 0.01
s
Technical Data
509