ABB REX640 User Manual

Control functions
Table 177. Emergency start-up (ESMGAPC)
Characteristic Value
Operation accuracy At the frequency f = f
n
±1.5% of the set value or ±0.002 × U
n
Table 178. Emergency start-up (ESMGAPC) main settings
Parameter Function Value (Range) Step
Motor standstill A ESMGAPC 0.05...0.20 × I
n
0.01
Operation ESMGAPC 1 = on
5 = off
-
Table 179. Autoreclosing (DARREC)
Characteristic
Value
Operate time accuracy ±1.0% of the set value or ±20 ms
Table 180. Autosynchronizer for generator breaker (ASGCSYN)
Characteristic
Value
Measurement accuracy Depending on the frequency of the voltage measured:
f
n
±2 Hz
Voltage difference:
±1.0% or ±0.004 × U
n
Frequency difference:
±10 mHz
Phase angle difference:
±1°
Operation accuracy MATCH_OK for voltage:
±0.001 × U
n
MATCH_OK for frequency:
±10 mHz
Operation time accuracy Raise/Lower output pulse width:
±1.0% of the set value or ±20 ms
Energizing time for dead-bus closing:
±1.0% of the set value or ±35 ms
Minimum Syn time for SYNC_OK:
±1.0% of the set value or ±60 ms
Reset time Typically 20 ms
Closing angle accuracy ±1°
1MRS759144 A
REX640
Product version: 1
ABB 85

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