4.2.3.9 Technical data
Table 357: INTRPTEF Technical data
Characteristic
Value
Operation accuracy (Uo criteria with transient
protection)
Depending on the frequency of the measured
current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × Uo
Operate time accuracy ±1.0% of the set value or ±20 ms
Suppression of harmonics DFT: -50 dB at f = n × f
n
, where n = 2, 3, 4, 5
4.2.3.10 Technical revision history
Table 358: INTRPTEF Technical revision history
Technical revision Change
B Minimum and default values changed to 40 ms for
the
Operate delay time
setting
C The
Minimum operate current
setting is added.
Correction in IEC 61850 mapping: DO BlkEF
renamed to InhEF. Minimum value changed from
0.01 to 0.10 (default changed from 0.01 to 0.20) for
the
Voltage start value
setting. Minimum value
changed from 0 ms to 40 ms for the
Reset delay
time
setting.
D
Voltage start value description changed from
"Voltage start value for transient EF" to "Voltage
start value" since the start value is effective in both
operation modes. Added support for calculated
Uo. Uo source (measured/calculated) can be
selected with "Uo signal Sel".
Voltage start value
setting minimum changed from 0.10 to 0.05.
E
Min operate current
setting scaling corrected to
RMS level from peak level.
4.2.4 Admittance-based earth-fault protection EFPADM
4.2.4.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Admittance-based earth-fault protection EFPADM Yo> -> 21YN
Section 4 1MRS758755 A
Protection functions
324 REC615 and RER615
Technical Manual
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