45
—
Table 38. Admittance-based earth-fault protection (EFPADM)
Characteristic Value
Operation accuracy
At the frequency f = f
n
Start time
Minimum Typical Maximum
Reset time
Operate time accuracy i
Suppression of harmonics
n
2) Includes the delay of the signal output contact, results based on statistical distribution of 1000 measurements
—
Table 39. Admittance-based earth-fault protection (EFPADM) main settings
Parameter Function Value (range) Step
Voltage start value EFPADM
n
Directional mode
EFPADM
-
Operation mode EFPADM
-
Operate delay time EFPADM
Circle radius EFPADM
Circle conductance EFPADM
Circle susceptance EFPADM
Conductance forward EFPADM
Conductance reverse
EFPADM
Susceptance forward
EFPADM
Susceptance reverse
EFPADM
Conductance tilt Ang
EFPADM
Susceptance tilt Ang
EFPADM
—
Table 40. Wattmetric-based earth-fault protection (WPWDE)
Characteristic Value
Operation accuracy
Depending on the frequency of the measured current: f
n
Current and voltage:
n
Power:
n
Start time
Reset time
Reset ratio
Operate time accuracy in definite time mode
Operate time accuracy in IDMT mode
Suppression of harmonics
n
= phase to earth voltage during earth fault in compensated or un-earthed network, the residual power value before fault = 0.0 pu, f
n
= 50 Hz,
results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
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