Monitored Data - ABB RED615 Technical Manual

1YHT530004D05 D
Parameter Values (Range)
Start value df/dt
Operate Tm Freq
Operate Tm df/dt
Restore start Val
Restore delay time
Table 436: LSHDPFRQ Non group settings
Parameter Values (Range)
Operation
Reset delay time
4.6.2.8
4.6.2.9
615 series
Technical Manual
Unit
-0.200...-0.005 xFn /s
80...200000 ms
120...200000 ms
0.800...1.200 xFn
80...200000 ms
Unit
1=on
5=off
0...60000 ms

Monitored data

Table 437: LSHDPFRQ Monitored data
Name
START_DUR
LSHDPFRQ
Technical data
Table 438: LSHDPFRQ Technical data
Characteristic
Operation accuracy
Start time
Reset time
Operate time accuracy
Step Default
0.005 -0.010
10 200
10 200
0.001 0.998
10 300
Step Default
1=on
1 50
Type Values (Range)
FLOAT32 0.00...100.00
Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
f<
df/dt
f<
df/dt
Section 4
Protection functions
Description
Setting of frequency gradient for df/dt
detection
Time delay to operate for under
frequency stage
Time delay to operate for df/dt stage
Restore frequency setting value
Time delay to restore
Description
Operation Off / On
Time delay after which the definite timers
will reset
Unit Description
% Start duration
Status
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
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