ABB Relion 611 Series, Technical Manual

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4.2.2.13 Technical data
Table 202: DEFxPDEF Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured
current: f
n
±2 Hz
DEFLPDEF
Current:
±1.5% of the set value or ±0.002 × I
n
Voltage
±1.5% of the set value or ±0.002 × U
n
Phase angle:
±2°
DEFHPDEF Current:
±1.5% of the set value or ±0.002 × I
n
(at currents in the range of 0.1…10 × I
n
)
±5.0% of the set value
(at currents in the range of 10…40 × I
n
)
Voltage:
±1.5% of the set value or ±0.002 × U
n
Phase angle:
±2°
Start time
1)2)
Minimum Typical Maximum
DEFHPDEF
I
Fault
= 2 × set
Start
value
42 ms 46 ms 49 ms
DEFLPDEF
I
Fault
= 2 × set
Start
value
58 ms 62 ms 66 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Retardation time <30 ms
Operate time accuracy in definite time mode ±1.0% of the set value or ±20 ms
Operate time accuracy in inverse time mode
±5.0% of the theoretical value or ±20 ms
3)
Suppression of harmonics RMS: No suppression
DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5,…
Peak-to-Peak: No suppression
1)
Measurement mode = default (depends on stage), current before fault = 0.0 × I
n
, f
n
= 50 Hz, earth-fault
current with nominal frequency injected from random phase angle, results based on statistical
distribution of 1000 measurements
2) Includes the delay of the signal output contact
3) Maximum
Start value = 2.5 × I
n
,
Start value multiples in range of 1.5...20
Section 4
1MRS757454 D
Protection functions
202 611 series
Technical Manual