Analog inputs
Table 2. TRM — Energizing quantities, rated values and limits for transformer inputs
Description
Value
Frequency
Rated frequency f
r
50 or 60 Hz
Operating range
f
r
± 10%
Current inputs
Rated current I
r
0.1 or 0.5 A
1)
1 or 5 A
2)
Operating range
0 – 50 A
0 – 500 A
Thermal withstand
100 A for 1 s
500 A for 1 s
*)
20 A for 10 s
100 A for 10 s
8 A for 1 min
40 A for 1 min
4 A continuously
20 A continuously
Dynamic withstand
250 A one half wave
1250 A one half wave
Burden
< 1 mVA at I
r
= 0.1 A
< 10 mVA at I
r
= 1 A
< 20 mVA at I
r
= 0.5 A
< 200 mVA at I
r
= 5 A
*)
max. 350 A for 1 s when COMBITEST test switch is included.
Voltage inputs
**)
Rated voltage U
r
100 or 220 V
Operating range
0 – 420 V
Thermal withstand
450 V for 10 s
420 V continuously
Burden
< 50 mVA at 100 V
< 200 mVA at 220 V
**)
all values for individual voltage inputs
Note! All current and voltage data are specified as RMS values at rated frequency
1)
Residual current
2)
Phase currents or residual current
Transformer protection RET650
1MRK 504 137-BEN B
Product version: 1.3
30
ABB
