ABB RES670 Product Manual page 27

Phasor measurement unit RES670 ANSI
Customized
Product version: 1.2
Influencing factors
Table 13. Temperature and humidity influence
Parameter
Ambient temperature, operate value
Relative humidity
Operative range
Storage temperature
Table 14. 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 15. Frequency influence (reference standard: IEC 60255–1)
Dependence on
Frequency dependence, operate value
Harmonic frequency dependence (20% content)
ABB
Reference value
+20 °C
10%-90%
0%-95%
-40 °C to +70 °C
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%
Nominal range
-10 °C to +55 °C
10%-90%
-
Influence
0.01% /%
0.01% /%
No restart
Correct behaviour at power down
<300 s
Within nominal range
f ± 2.5 Hz for 50 Hz
n
f ± 3.0 Hz for 60 Hz
n
2nd, 3rd and 5th harmonic of f
n
1MRK511254-BUS B
Influence
0.02% /°C
-
-
Influence
± 1.0% / Hz
± 1.0%
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