ABB RELION 650 Series Product Manual page 33

Transformer protection RET650 2.1 IEC
Table 15. 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 16. Frequency influence (reference standard: IEC 60255–1)
Dependence on
Frequency dependence, operate value
Harmonic frequency dependence (20% content)
Harmonic frequency dependence for restricted earth fault
protection
Table 17. 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 restricted earth fault
protection (20% content)
Type tests according to standards
ABB
Reference value Within nominal
range
max. 2% 15% of EL
Full wave
rectified
±20% of EL
24-60 V DC ± 20%
100-250 V DC ±20%
Within nominal range
f
r
f
r
2
2
Within nominal range
f
r
f
r
f
r
f
r
2
2
M16706-1 v13.1.1
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
nd rd th
, 3 and 5 harmonic of f
r
nd rd th
, 3 and 5 harmonic of f
r
±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 504 161-BEN C
Influence
±1.0%/Hz
±1.0%
±3.0%
Influence
±1.0%/Hz
±2.0%/Hz
±1.0%
±3.0%
IP15778-1 v1
33