Negative-Sequence Overvoltage Protection (Nsptov) Main Settings; Frequency Protection (Frpfrq); Frequency Protection (Frpfrq) Main Settings - ABB REU615 Product Manual

ABB
Voltage Protection and Control
REU615
Product version: 4.0
Table 37. Negative-sequence overvoltage protection (NSPTOV) main settings
Parameter
Start value
Operate delay time
Table 38. Frequency protection (FRPFRQ)
Characteristic
Operation accuracy
Start time
Reset time
Operate time accuracy
Table 39. Frequency protection (FRPFRQ) main settings
Parameter Values (Range)
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
Start value Freq> 0.900...1.200
Start value Freq< 0.800...1.100
Start value df/dt -0.200...0.200
Operate Tm Freq 80...200000
Operate Tm df/dt 120...200000
Function
NSPTOV
NSPTOV
f>/f<
df/dt
f>/f<
df/dt
Unit
xFn
xFn
xFn /s
ms
ms
Value (Range)
0.010...1.000 x U
n
40...120000 ms
Value
±10 mHz
±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)
< 80 ms
< 120 ms
< 150 ms
±1.0% of the set value or ±30 ms
Step Default
1=Freq<
0.001 1.050
0.001 0.950
0.005 0.010
10 200
10 400
1MRS757058 D
Step
0.001
1
Description
Frequency protection
operation mode
selection
Frequency start
value overfrequency
Frequency start
value underfrequency
Frequency start
value rate of change
Operate delay time
for frequency
Operate delay time
for frequency rate of
change
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