Technical Data - ABB REJ 527 Product Manual

Technical data

Directional or Non-Directional Earth-Fault
Relay
Table 1: Energizing inputs
Rated frequency
Current input
Rated current, I n
Thermal withstand capability
- continuously
- for 1 s
Dynamic current withstand
- half-wave value
Input impedance
Voltage input
Rated voltage, U
n
Thermal withstand capability
- continuously
- for 10 s
Input impedance
Table 2: Measuring range
Measured residual voltage (U
the rated voltage of the energizing input
Measured earth-fault current (I
the rated current of the energizing input
Table 3: Binary input
Operating range
Rated voltage
Current drain
Power consumption
Table 4: Power outputs (PO1 and PO2)
Rated voltage
Continuous carry
Make and carry for 3.0 s
Make and carry for 0.5 s
Breaking capacity when the control circuit time-
constant L/R < 40 ms, at 48/110/220 V dc
Minimum contact load
Table 5: Signal outputs (SO1, SO2) and self-supervision (IRF) output
Rated voltage
Continuous carry
Make and carry for 3.0 s
Make and carry for 0.5 s
Breaking capacity when the control circuit time-
constant L/R < 40 ms, at 48/110/220 V dc
Minimum contact load
Table 6: Data communication
Rear interface, connector X2.2
Front interface
50/60 Hz ±5 Hz
0.2 A
1.5 A
20 A
50 A
< 750 mΩ
100/110/115/120 V
2 x U
n
3 x U
n
> 4.7 MΩ
) as a percentage of 0...400% x U
0
) as a percentage of 0...800% x I
0
18...265 V dc
U = 24/48/60/110/220 V dc
r
~ 2...25 mA
< 0.8 W
250 V ac/dc
5 A
15 A
30 A
5 A/3 A/1 A
100 mA at 24 V ac/dc
250 V ac/dc
5 A
8 A
10 A
1 A/0.25 A/0.15 A
100 mA at 24 V ac/dc
RS-485 connection for the fibre-optic interface
module RER 103
SPA bus or IEC 60870-5-103 protocol
4.8 or 9.6 kbps
Optical RS-232 connection for opto-cable
1MKC 950001-1
SPA bus protocol
4.8 or 9.6 kbps
1MRS751132-MBG
1 A 5 A
4 A 20 A
100 A 500 A
250 A 1250 A
< 100 mΩ < 20 mΩ
n
n
REJ 527
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