ABB RET615 Product Manual page 26

Transformer Protection and Control
RET615
Product version: 4.0
Table 8. Energizing inputs
Description
Rated frequency
Current inputs Rated current, I
Thermal withstand
capability:
• Continuously
• For 1 s
Dynamic current withstand:
• Half-wave value
Input impedance
Voltage inputs Rated voltage
Voltage withstand:
• Continuous
• For 10 s
Burden at rated voltage
1) Residual current and/or phase current
Table 9. Binary inputs
Description
Operating range
Rated voltage
Current drain
Power consumption
Threshold voltage
Reaction time
26
Value
50/60 Hz ± 5 Hz
1)
1/5 A
n
20 A
500 A
1250 A
<20 mΩ
60...210 V AC
240 V AC
360 V AC
<0.05 VA
Value
±20% of the rated voltage
24...250 V DC
1.6...1.9 mA
31.0...570.0 mW
18...176 V DC
3 ms
1MRS756891 F
ABB