4.2.4.9 Monitored data
Table 321: EFPADM Monitored data
Name Type Values (Range) Unit Description
START_DUR FLOAT32 0.00...100.00 % Ratio of start time /
operate time
FAULT_DIR Enum 0=unknown
1=forward
2=backward
3=both
Detected fault direction
COND_RES FLOAT32 -1000.00...1000.
00
mS Real part of calculated
neutral admittance
SUS_RES FLOAT32 -1000.00...1000.
00
mS Imaginary part of
calculated neutral
admittance
EFPADM Enum 1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.2.4.10 Technical data
Table 322: EFPADM Technical data
Characteristic
Value
Operation accuracy
1)
At the frequency f = f
n
±1.0% or ±0.01 mS
(In range of 0.5 - 100 mS)
Start time
2)
Minimum Typical Maximum
56 ms 60 ms 64 ms
Reset time 40 ms
Operate time accuracy ±1.0% of the set value of ±20 ms
Suppression of
harmonics
-50 dB at f = n x f
n
, where n = 2, 3, 4, 5,…
1) Uo = 1.0 x Un
2) Includes the delay of the signal output contact. Results based on statistical distribution of 1000
measurements.
4.2.5 Harmonic based earth-fault protection HAEFPTOC
4.2.5.1 Identification
Description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE
identification
Harmonics earth-fault protection HAEFPTOC Io>HA 51NHA
Section 4 1YHT530004D05 D
Protection functions
336 615 series
Technical Manual
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