Table 17. Auxiliary DC supply voltage influence on functionality during operation
Dependence on
Reference value
Within nominal
range
Influence
Ripple, in DC auxiliary voltage
Operative range
max. 2%
Full wave rectified
15% of EL
0.01% /%
Auxiliary voltage dependence, operate
value
± 20% of EL
0.01% /%
Interrupted auxiliary DC voltage
24-60 V DC ± 20%
90-250 V DC
±
20%
Interruption interval
0–50 ms
No restart
0–∞ s
Correct behaviour at power down
Restart time
<300 s
Table 18. Frequency influence (reference standard: IEC 60255–1)
Dependence on
Within nominal range
Influence
Frequency dependence, operate value
f
r
± 2.5 Hz for 50 Hz
f
r
± 3.0 Hz for 60 Hz
± 1.0% / Hz
Frequency dependence for differential protection
f
r
± 2.5 Hz for 50 Hz
f
r
± 3.0 Hz for 50 Hz
± 2.0% / Hz
Harmonic frequency dependence (20% content)
2nd, 3rd and 5th harmonic of f
r
± 1.0%
Harmonic frequency dependence for differential protection (10%
content)
2nd, 3rd and 5th harmonic of f
r
± 6.0%
Busbar protection REB670
1MRK505212-BEN E
Pre-configured
Product version: 1.2
ABB
35
