Power Protection (P,Q), 3-Phase
Setting Values
Measured value Positive sequence power
Power of phase A
Power of phase B
Power of phase C
Threshold value -200.0 % to +200.0 % Increments of 0.1
Tilt-power characteristic -89.0° to +89.0° Increments of 0.1°
Dropout delay time 0.00 s to 60.00 s Increments of 0.01 s
Time delay 0.00 s to 60.00 s Increments of 0.01 s
Dropout ratio Upper stage: 0.90 to 0.99
Lower stage: 1.01 to 1.10
Increments of 0.01
Increments of 0.01
Times
Pickup times
Approx. 55 ms + OOT
84
at 50 Hz
Approx. 45 ms + OOT at 60 Hz
Dropout times Approx. 55 ms + OOT at 50-Hz
Approx. 45 ms + OOT at 60 Hz
Tolerances
Power
0.5 % S
rated
± 3 % of setting value
(S
rated
: rated apparent power)
Time delays 1 % of the setting value or 10 ms
Variables That Influence Pickup Values
Auxiliary DC voltage in the range 0.8 ≤ V
aux.
/
V
aux.,rated
≤ 1.15
≤ 1 %
Frequency in the range 0.95 ≤ f/f
rated
≤ 1.05 ≤ 1 %
Harmonics
- Up to 10 % of 3rd harmonics
- Up to 10 % of 5th harmonics
≤ 1 %
≤ 1 %
Frequency Operating Range
0.9 ≤ f/f
rated
≤ 1.1 According to specified tolerances
10 Hz < f < 0.9 f
rated
1.1 f
rated
< f
Slightly expanded tolerances
f ≤ 10 Hz Inactive
11.26
84
OOT (Output Operating Time): additional delay of the output medium used, see Chapter 11.1.4 Relay Outputs
Technical Data
11.26 Power Protection (P,Q), 3-Phase
SIPROTEC 5, High-Voltage Bay Controller, Manual 1183
C53000-G5040-C015-A, Edition 05.2018
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