Parameter Values (Range) Unit Step Default Description
8=Freq< AND df/dt
Restore mode
1=Disabled
2=Auto
3=Manual
1=Disabled Mode of operation
of restore function-
ality
Start value Freq 0.8000...1.2000 xFn 0.0001 0.9750 Frequency set-
ting/start value
Start value df/dt -0.2000...-0.0050 xFn/s 0.0001 -0.0100 Setting of frequen-
cy gradient for
df/dt detection
Operate Tm Freq 80...200000 ms 10 200 Time delay to op-
erate for under fre-
quency stage
Operate Tm df/dt 120...200000 ms 10 200 Time delay to oper-
ate for df/dt stage
Restore start Val 0.8000...1.2000 xFn 0.0001 0.9980 Restore frequency
setting value
Restore delay time 80...200000 ms 10 300 Time delay to re-
store
Table 899: LSHDPFRQ Non group settings (Basic)
Parameter Values (Range) Unit Step Default Description
Operation
1=on
5=off
1=on Operation Off / On
Table 900: LSHDPFRQ Non group settings (Advanced)
Parameter
Values (Range) Unit Step Default Description
Reset delay time 0...60000 ms 1 50 Time delay after
which the definite
timers will reset
4.6.2.9 LSHDPFRQ Monitored data
Table 901: LSHDPFRQ Monitored data
Name
Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Start duration
LSHDPFRQ Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.6.2.10 Technical data
Table 902: LSHDPFRQ Technical data
Characteristic Value
Operation accuracy f< ±5 mHz
df/dt
±100 mHz/s (in range |df/dt| < 5 Hz/s)
Table continues on the next page
1MRS759142 F Protection functions
REX640
Technical Manual
939
To Next Page
Loading...
