Table 173. Load-shedding and restoration (LSHDPFRQ) main settings
Parameter
Function
Value (Range)
Step
Load shed mode
LSHDPFRQ
1 = Freq<
6 = Freq< OR df/dt
8 = Freq< AND df/dt
-
Restore mode
LSHDPFRQ
1 = Disabled
2 = Auto
3 = Manual
-
Start value Freq
LSHDPFRQ
0.800...1.200 × f
n
0.001
Start value df/dt
LSHDPFRQ
-0.2000...0.0050 × f
n
/s
0.0001
Operate Tm Freq
LSHDPFRQ
80...200000 ms
10
Operate Tm df/dt
LSHDPFRQ
120...200000 ms
10
Restore start Val
LSHDPFRQ
0.800...1.200 × f
n
0.001
Restore delay time
LSHDPFRQ
80...200000 ms
10
Table 174. Multipurpose protection (MAPGAPC)
Characteristic
Value
Operation accuracy
±1.0% of the set value or ±20 ms
Table 175. Multipurpose protection (MAPGAPC) main settings
Parameter
Function
Value (Range)
Step
Start value
MAPGAPC
-10000.0...10000.0
0.1
Operate delay time
MAPGAPC
0...200000 ms
100
Operation mode
MAPGAPC
1 = Over
2 = Under
-
1MRS759144 A
REX640
Product version: 1
ABB
83
Summary of Contents for RELION REX640
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