Table 285: EFHPTOC Technical revision history
Technical revision Change
B Minimum and default values changed to 40 ms
for the
Operate delay time
setting
C Added a setting parameter for the "Measured Io"
or "Calculated Io" selection
D Step value changed from 0.05 to 0.01 for the
Time multiplier
setting.
Table 286: EFLPTOC Technical revision history
Technical revision Change
B The minimum and default values changed to 40
ms for the
Operate delay time
setting
C
Start value
step changed to 0.005
D Added a setting parameter for the "Measured Io"
or "Calculated Io" selection
E Step value changed from 0.05 to 0.01 for the
Time multiplier
setting.
4.2.2 Directional earth-fault protection DEFxPDEF
4.2.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Directional earth-fault protection - Low
stage
DEFLPDEF Io>-> 67N-1
Directional earth-fault protection - High
stage
DEFHPDEF Io>>-> 67N-2
4.2.2.2 Function block
A070433 V2 EN
Figure 133: Function block
1YHT530004D05 D Section 4
Protection functions
615 series 273
Technical Manual
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