Siemens SIPROTEC 4 7UT6 Series - Page 460

Times
f
N
= 50/60 Hz f
N
= 16.7 Hz
Pickup times
Current approx. 35 ms approx. 70 ms
Voltage approx. 50 ms approx. 130 ms
Power
Measuring procedure high-accuracy
Measuring procedure high-speed
approx. 200 ms
approx. 120 ms
approx. 500 ms
approx. 300 ms
Power factor
Measuring procedure high-accuracy
Measuring procedure high-speed
approx. 200 ms
approx. 120 ms
approx. 500 ms
approx. 250 ms
Frequency approx. 200 ms approx. 500 ms
Dropout times
Current <25 ms <60 ms
Voltage <50 ms <110 ms
Power
Measuring procedure high-accuracy
Measuring procedure high-speed
<120 ms
<100 ms
<330 ms
<300 ms
Power factor
Measuring procedure high-accuracy
Measuring procedure high-speed
<120 ms
<100 ms
<400 ms
<250 ms
Frequency <150 ms <500 ms
Tolerances
Pickup thresholds
Current 3 % of setting value or 1 % rated current
Voltage 1 % of setting value or 0.5 V
Power 0.25 % S
N
±3 % of setting value with high-accuracy measurement
0.5 % S
N
±3 % of setting value with high-speed measurement
(S
N
: rated apparent power)
Power factor
2
o
Frequency 10 mHz (at U = U
N
, f = f
N
Times generally 1 % of setting value or 10 ms
Influencing Variables for Pickup
Power supply direct voltage in range 0.8 ≤ U
H
/U
HN
≤ 1.15 1 %
Temperature in range -5
o
C ≤ θ
amb
≤ 55
o
C
0.5 %/10 K
Frequency in range 0.95 ≤ f/f
N
≤ 1.05 1 %
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
1 %
1 %
Technical Data
4.21 Flexible Function
460 SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016