Siemens SIPROTEC 4 7UT6 Series Manual page 460

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

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