Energizing quantities, rated values and limits
Analog inputs
IP15842-1 v1M16988-1 v11
Table 12. TRM - Energizing quantities, rated values and limits for protection transformer
Description Value
Frequency
Rated frequency f
r
50/60 Hz
Operating range f
r
± 10%
Current inputs
Rated current I
r
1 or 5 A
Operating range (0-100) x I
r
Thermal withstand 100 × I
r
for 1 s *)
30 × I
r
for 10 s
10 × I
r
for 1 min
4 × I
r
continuously
Dynamic withstand 250 × I
r
one half wave
Burden < 20 mVA at I
r
= 1 A
< 150 mVA at I
r
= 5 A
*) max. 350 A for 1 s when COMBITEST test switch is included.
Voltage inputs **)
Rated voltage U
r
110 or 220 V
Operating range 0 - 340 V
Thermal withstand 450 V for 10 s
420 V continuously
Burden < 20 mVA at 110 V
< 80 mVA at 220 V
**) all values for individual voltage inputs
Note! All current and voltage data are specified as RMS values at rated frequency
Line differential protection RED670
1MRK 505 379-BEN N
Hitachi Power Grids 63
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