Technical Data - ABB REJ 527 Technical Reference Manual

REJ 527
4.2.3.
60
Directional or Non-Directional Earth-Fault Relay
Technical Reference Manual

Technical data

Table 4.2.3-1 Dimensions
Width, frame 111.4 mm, box 94 mm
Height, frame 265.9 mm (6U), box 249.8 mm
Depth 235 mm (245.1 mm with a protective rear cover, available as an option)
Enclosure size 1/4 (x 19")
Weight of the relay ~3.0 kg
1)
For dimension drawings, refer to the Installation Manual (1MRS 750526-MUM).
Table 4.2.3-2 Power supply
U rated
aux
U variation
aux
Relay power start-up time, typical
Burden of auxiliary voltage supply under quiescent/
operating condition
Ripple in the dc auxiliary voltage
Interruption time in the auxiliary dc voltage without
resetting the relay
Table 4.2.3-3 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 4.2.3-4 Measuring range
Measured residual voltage (U
the energizing input
Measured earth-fault current (I
the energizing input
1)
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 the rated voltage of
0
) as a percentage of the rated current of
0
1MRS 750616-MUM
U =10/120/220/240 V ac
r
U =48/60/110/125/220 V dc
r
80...265 V ac
38...265 V dc
300 ms
~ 4 W/~ 10 W
Max 12% of the dc value
< 30 ms at 48 V dc
< 100 ms at 110 V dc
< 500 ms at 220 V dc
1 A 5 A
4 A 20 A
100 A 500
250 A 1250 A
< 100 mΩ < 20 mΩ
0...400% x U
0...800% x I
n
n