Frequency Protection 81 O/U - Siemens siprotec SJ62 User Manual

4 Technical Data
4.13

Frequency Protection 81 O/U

Setting Ranges / Increments
Times
Dropout Frequency
Dropout Ratio
Tolerances
Influencing Variables
489
Number of Frequency Elements
Pickup Frequency f> or f<
with f = 50 Hz
Nom
Pickup Frequency f> or f<
with f = 60 Hz
Nom
Delay times T
Undervoltage Blocking
with Three-phase Connection: Positive Se-
quence Component V
1
with Single-phase Connection: single-phase
phase-ground or phase-phase voltage
Pickup times f>, f<
Dropout times f>, f<
Δf = I Pickup value - Dropout value I
Dropout Ratio for Undervoltage Blocking
Pickup Frequencies 81/O or 81U
Undervoltage Blocking
Time Delays 81/O or 81/U
Power Supply DC Voltage in Range
0.8 ≤ V ≤ 1.15
/V
PS PSNom
Temperature in Range
23.00 °F (–5 °C) ≤ Θ ≤ 131.00 °F (55 °C)
amb
Harmonics
Up to 10 % 3rd harmonic
Up to 10 % 5th harmonic
4; each can be set f> or f<
45.50 Hz to 54.50 Hz
55.50 Hz to 64.50 Hz
0.00 s to 100.00 s or ∞
10 V to 150 V
approx. 150 ms (7SJ62/63)
approx. 80 ms (7SJ64)
approx. 150 ms (7SJ62/63)
approx. 80 ms (7SJ64)
approx. 20 mHz
approx. 1.05
10 mHz (with V = V , f = f
Nom
3 % of setting value or 1 V
1 % of setting value or 10 ms
1 %
0.5 %/10 K
1 %
1 %
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 s
Increments 1V
)
Nom