Forward Power Supervision
Setting Ranges / Increments
Forward power P
forward
< 1.7 W to 3000.0 W
0.01 P/SnS to 17.00 P/SnS
Increment 0.1 W
Increment 0.1 W
Forward power P
forward
> 1.7 W to 3000.0 W
0.01 P/SnS to 17.00 P/SnS
Increment 0.1 W
Increment 0.1 W
Delay Times T 0.00 s to 60.00 s
or ∞ (disabled)
Increment 0.01 s
Times
Pickup times
- Active power P<, P>
with high–accuracy measurement:
approx. 330 ms at f = 50 Hz
approx. 310 ms at f = 60 Hz
approx. 970 ms at f = 16.7 Hz
with high-speed measurement:
approx. 30 ms at f = 50 Hz
approx. 30 ms at f = 60 Hz
approx. 70 ms at f = 16.7 Hz
Dropout times
- Active power P<, P>
with high–accuracy measurement:
approx. 330 ms at f = 50 Hz
approx. 310 ms at f = 60 Hz
approx. 970 ms at f = 16.7 Hz
with high-speed measurement:
approx. 30 ms at f = 50 Hz
approx. 30 ms at f = 60 Hz
approx. 70 ms at f = 16.7 Hz
Dropout Ratios
Active power P
act
< approx. 1.10 or 0.5 % of S
N
Active power P
act
> approx. 0.90 or –0.5 % of S
N
Tolerances
Active power P<, P>
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)
Delay Times T 1 % or 10 ms
Influencing Variables for Pickup Values
Power supply direct voltage in range
0.8 ≤ U
H
/U
HN
≤ 1.15
≤ 1 %
Temperature in range
–5 °C ≤ Θ
amb
≤ 55 °C
≤ 0.5 %/10 K
Frequency in range 0.95 ≤ f/f
N
≤ 1.05 ≤ 1 %
4.13
Technical Data
4.13 Forward Power Supervision
SIPROTEC 4, 7UT6x, Manual 447
C53000-G1176-C230-5, Edition 09.2016
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