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ABB REX640 User Manual

ABB REX640
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Table 165. Three-phase inrush detector (INRPHAR)
Characteristic Value
Operation accuracy At the frequency f = f
n
Current measurement:
±1.5% of the set value or ±0.002 × I
n
Ratio I2f/I1f measurement:
±5.0% of the set value
Reset time +35 ms / -0 ms
Reset ratio Typically 0.96
Operate time accuracy +35 ms / -0 ms
Table 166. Three-phase inrush detector (INRPHAR) main settings
Parameter
Function Value (Range) Step
Start value INRPHAR 5...100% 1
Operate delay time INRPHAR 20...60000 ms 1
Table 167. Arc protection (ARCSARC)
Characteristic
Value
Operation accuracy ±3.0% of the set value or ±0.01 × I
n
Operate time TC Minimum Typical Maximum
Operation mode
= "Light
+current"
1)
9 ms
2)
3 ms
3)
10 ms
2)
5 ms
3)
13 ms
2)
6 ms
3)
Operation mode
= "Light only"
2)
8 ms
2)
3 ms
3)
10 ms
2)
5 ms
3)
13 ms
2)
6 ms
3)
Reset time Typically 50 ms
Reset ratio Typically 0.96
1)
Phase start value
= 1.0 × I
n
, current before fault = 2.0 × set
Phase start value
, f
n
= 50 Hz, fault with nominal frequency, results based on statistical distribution of 200 measurements
2) Includes the delay of the power output (PO) contact
3) Measured with static power output (SPO)
Table 168. Arc protection (ARCSARC) main settings
Parameter
Function Value (Range) Step
Phase start value ARCSARC 0.50...40.00 × I
n
0.01
Ground start value ARCSARC 0.05...8.00 × I
n
0.01
Operation mode ARCSARC 1 = Light+current
2 = Light only
3 = BI controlled
-
Table 169. High-impedance fault detection (PHIZ) main settings
Parameter
Function Value (Range) Step
Security Level PHIZ 1...10 1
System type PHIZ 1 = Grounded
2 = Ungrounded
-
1MRS759144 A
REX640
Product version: 1
ABB 81

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ABB REX640 Specifications

General IconGeneral
Device TypeProtection Relay
Communication ProtocolsIEC 61850, Modbus, DNP3, IEC 60870-5-103
Rated Frequency50/60 Hz
Operating Temperature Range-25°C to +55°C
DisplayLCD
HousingMetal
ManufacturerABB
ModelREX640
MountingRack mounting
Inputs and OutputsConfigurable binary inputs and outputs
Rated Voltage48-240 V AC/DC
Protection FunctionsOvercurrent, Earth Fault
Input Voltage48-240 V AC/DC
CertificationsCE, UL, IEC

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