ABB REU615, Руководство по эксплуатации продукта

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Table 37. Negative-sequence overvoltage protection (NSPTOV) main settings
Parameter Function Value (Range) Step
Start value NSPTOV 0.010...1.000 x U
n
0.001
Operate delay time NSPTOV 40...120000 ms 1
Table 38. Frequency protection (FRPFRQ)
Characteristic Value
Operation accuracy f>/f< ±10 mHz
df/dt ±100 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 39. Frequency protection (FRPFRQ) main settings
Parameter Values (Range) Unit Step Default Description
Operation mode 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 1=Freq< Frequency protection
operation mode
selection
Start value Freq> 0.900...1.200 xFn 0.001 1.050 Frequency start
value overfrequency
Start value Freq< 0.800...1.100 xFn 0.001 0.950 Frequency start
value underfrequency
Start value df/dt -0.200...0.200 xFn /s 0.005 0.010 Frequency start
value rate of change
Operate Tm Freq 80...200000 ms 10 200 Operate delay time
for frequency
Operate Tm df/dt 120...200000 ms 10 400 Operate delay time
for frequency rate of
change
Voltage Protection and Control 1MRS757058 D
REU615
Product version: 4.0
ABB 31