ABB Relion 670 Series Product Manual page 63

Busbar protection REB670
Version 2.2
Table 32. Auxiliary DC supply voltage influence on functionality during operation
Dependence on
Ripple, in DC auxiliary voltage
Operative range
Auxiliary voltage dependence, operate
value
Interrupted auxiliary DC voltage
Interruption
interval
0–50 ms
0–∞ s
Restart time
Table 33. Frequency influence (reference standard: IEC 60255–1)
Dependence on
Frequency dependence, operate value
Frequency dependence for differential protection
Harmonic frequency dependence (20% content)
Harmonic frequency dependence for differential protection (10%
content)
Hitachi Power Grids
Reference value Within nominal
range
max. 2% 15% of EL
Full wave rectified
±20% of EL
24-60 V DC ± 20%
90-250 V DC ± 20%
Within nominal range
f
r
f
r
f
r
f
r
2
2
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Influence
0.01%/%
0.01%/%
No restart
Correct behaviour at power down
< 300 s
±2.5 Hz for 50 Hz
±3.0 Hz for 60 Hz
±2.5 Hz for 50 Hz
±3.0 Hz for 60 Hz
nd rd th
, 3 and 5 harmonic of f
r
nd rd th
, 3 and 5 harmonic of f
r
1MRK 505 373-BEN P
Influence
±1.0%/Hz
±2.0%/Hz
±2.0%
±6.0%
63