ABB REX640 User Manual

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

ABB REX640 Specifications

General

Device Type	Protection Relay
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Rated Frequency	50/60 Hz
Operating Temperature Range	-25°C to +55°C
Display	LCD
Housing	Metal
Manufacturer	ABB
Model	REX640
Mounting	Rack mounting
Inputs and Outputs	Configurable binary inputs and outputs
Rated Voltage	48-240 V AC/DC
Protection Functions	Overcurrent, Earth Fault
Input Voltage	48-240 V AC/DC
Certifications	CE, UL, IEC