Table 54. 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 × f
n
0.0001
Start value Freq< FRPFRQ 0.8000...1.1000 × f
n
0.0001
Start value df/dt FRPFRQ -0.2000...0.2000 × f
n
/s 0.005
Operate Tm Freq FRPFRQ 80...200000 ms 10
Operate Tm df/dt FRPFRQ 120...200000 ms 10
Table 55. Overexcitation protection (OEPVPH)
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
±3.0% of the set value
Start time
1)2)
Frequency change:
Typically 200 ms
Voltage change:
Typically 40 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <35 ms
Operate time accuracy in definite-time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse-time mode ±5.0% of the theoretical value or ±50 ms
1) f
n
= 50 Hz, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Table 56. Overexcitation protection (OEPVPH) main settings
Parameter
Function Value (Range) Step
Start value OEPVPH 100...200% 1
Operating curve type OEPVPH Definite or inverse time
Curve type: 5, 15, 17, 18, 19, 20
Time multiplier OEPVPH 0.1...100.0 0.1
Operate delay time OEPVPH 200...200000 ms 10
Cooling time OEPVPH 5...10000 s 1
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