ABB REX640 User Manual

Table 59. Directional earth-fault protection (DEFxPDEF) main settings
Parameter Function Value (Range) Step
Start value DEFLPDEF 0.010...5.000 × I
n
0.005
DEFHPDEF 0.10...40.00 × I
n
0.01
Directional mode DEFxPDEF 1 = Non-directional
2 = Forward
3 = Reverse
-
Time multiplier DEFxPDEF 0.025...15.000 0.005
Operate delay time DEFLPDEF 50...300000 ms 10
DEFHPDEF 40...300000 ms 10
Operating curve type
1)
DEFLPDEF Definite or inverse time
Curve type: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19
DEFHPDEF Definite or inverse time
Curve type: 1, 3, 5, 15, 17
Operation mode DEFxPDEF 1 = Phase angle
2 = IoSin
3 = IoCos
4 = Phase angle 80
5 = Phase angle 88
-
1) For further reference, see the Operating characteristics table
Table 60. Three-phase power directional element (DPSRDIR) main settings
Parameter
Function Value (Range) Step
Release delay time DPSRDIR 0...1000 ms 1
Characteristic angle DPSRDIR -179...180° 1
Directional mode DPSRDIR 1 = Non-directional
2 = Forward
3 = Reverse
-
Table 61. Neutral power directional element (DNZSRDIR) main settings
Parameter
Function Value (Range) Step
Release delay time DNZSRDIR 0...1000 ms 10
Directional mode DNZSRDIR 1 = Non-directional
2 = Forward
3 = Reverse
-
Characteristic angle DNZSRDIR -179...180° 1
Pol quantity DNZSRDIR 3 = Zero seq. volt.
4 = Neg. seq. volt.
-
1MRS759144 A
REX640
Product version: 1
48 ABB

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