Characteristic Value
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in denite time mode ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × fn, where n = 2, 3, 4, 5,…
Table 39. Negative-sequence overvoltage protection (NSPTOV) main settings
Parameter Function Value (Range) Step
Start value NSPTOV 0.010...1.000 × Un 0.001
Operate delay time NSPTOV 40...120000 ms 1
Table 40. Frequency protection (FRPFRQ)
Characteristic Value
Operation accuracy f>/f< ±5 mHz
df/dt ±50 mHz/s (in range |df/dt| <5 Hz/s)
±2.0% of the set value (in range 5 Hz/s < |df/dt| < 15 Hz/s)
Start time f>/f< <80 ms
df/dt <120 ms
Reset time <150 ms
Operate time accuracy ±1.0% of the set value or ±30 ms
Table 41. Frequency protection (FRPFRQ) main settings
Parameter Function Value (Range) Step
Operation mode FRPFRQ 1 = Freq<
2 = Freq>
3 = df/dt
4 = Freq< + df/dt
5 = Freq> + df/dt
6 = Freq< OR df/dt
7 = Freq> OR df/dt
-
Start value Freq> FRPFRQ 0.9000...1.2000 × fn 0.0001
Start value Freq< FRPFRQ 0.8000...1.1000 × fn 0.0001
Start value df/dt FRPFRQ -0.2000...0.2000 × fn/s 0.005
Operate Tm Freq FRPFRQ 80...200000 ms 10
Operate Tm df/dt FRPFRQ 120...200000 ms 10
Table 42. Distance protection (DSTPDIS)
Characteristic Value
Operation accuracy At the frequency f = fn
Current:
±1.5% of the set value or ±0.002 × In
Voltage:
±1.5% of the set value or ±0.002 × Un
Impedance:
±2.5% of the set value or ±0.05 Ω
Phase angle: ±2°
Shortest operate time
40
SIR
41
: 0.1...50 45 ms
Transient overreach SIR = 0.1...50 <3%
Reset time Typically 45 ms
Reset ratio Typically 0.96/1.04
Operate time accuracy ±1.0% of the set value or ±20 ms
40 Measured with High-speed output (HSO)
41 SIR = Source impedance ratio
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