Name Type Values (Range) Unit Description
ANGLE_RCA FLOAT32 -180.00...180.00 deg Angle between operat-
ing angle and charac-
teristic angle
RES_POWER FLOAT32 -160.000...160.000 xPn Calculated residual ac-
tive power
WPWDE Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
4.2.7.12 Technical data
Table 601: WPWDE Technical data
Characteristic Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
Current and voltage:
±1.5% of the set value or ±0.002 × I
n
Power:
±3% of the set value or ±0.002 × P
n
Start time
1, 2
Typically 63 ms
Reset time Typically 40 ms
Reset ratio Typically 0.96
Operate time accuracy in definite time mode
3
±1.0% of the set value or ±20 ms
Operate time accuracy in IDMT mode ±5.0% of the set value or ±20 ms
Suppression of harmonics -50 dB at f = n × f
n
, where n = 2,3,4,5,…
4.2.8 Third harmonic based stator earth-fault protection
H3EFPSEF (ANSI 64TN)
4.2.8.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Third harmonic-based stator earth-
fault protection
H3EFPSEF dUo>/Uo3H 64TN
1
Io varied during the test, U
o
= 1.0 × U
n
= phase-to-earth voltage during earth fault in compensa-
ted or unearthed 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.
3
Start time of the function also included.
1MRS759142 F Protection functions
REX640
Technical Manual
541
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