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REF 610
134
Feeder Protection Relay
Technical Reference Manual
Table 4.2.4-2
Power supply
U
variation (temporary)
aux
• REF610AxxHxxx
• REF610AxxLxxx
Burden of auxiliary voltage supply under quiescent
(P
)/operating condition
q
Ripple in the dc auxiliary voltage
Interruption time in the auxiliary dc voltage without
resetting the relay
Time to trip from switching on the auxiliary voltage
Internal over temperature limit
Fuse type
Table 4.2.4-3
Energizing inputs
Rated frequency
Rated current, I
n
Thermal withstand capability
• continuously
• for 1 s
• for 10 s
Dynamic current withstand
• half-wave value
Input impedance
Table 4.2.4-4
Measuring range
Measured currents on phases I
currents of the energizing inputs
Earth-fault current as a multiple of the rated current of the energizing
input
Table 4.2.4-5
Digital inputs
Operating range
Rated voltage
DI1...DI2
• REF610AxxHxxx
110/125/220/250 V dc
• REF610AxxLxxx
24/48/60/110/125/220/250 V dc
• REF610AxxxxLx
• REF610AxxxxHx
Current drain
Power consumption/input
Table 4.2.4-6
Signal output SO1 and optional SO4 and SO5
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
85...110% of U
80...120% of U
80...120% of U
<9 W/13 W
Max 12% of the dc value
<50 ms at U
<350 ms
+100°C
T2A/250 V
50/60 Hz ± 5 Hz
0.2 A
1 A
• 1.5 A
4 A
• 20 A
100 A
• 5 A
25 A
• 50 A
250 A
<750 mΩ
<100 mΩ
, I
and I
as multiples of the rated
L1
L2
L3
±20% of the rated voltage
DI3...DI5 (optional)
24/48/60/110/125/220/250 V dc
110/125/220/250 V dc
2...18 mA
≤ 0.9 W
250 V ac/dc
5 A
15 A
30 A
1 A/0.25 A/0.15 A
(5 A/3 A/1 A for series connection of
SO4 and SO5)
100 mA at 24 V ac/dc
1MRS 755310
(ac)
r
(dc)
r
(dc)
r
rated
aux
5 A
20 A
500 A
100 A
1250 A
<20 mΩ
0...50 x I
n
0...8 x I
n
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