Name
Type
Values (Range)
Unit
Description
ANGLE
FLOAT32
-180.00...180.00
deg
Angle between polar-
izing and operating
quantity
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
4.2.7.11
Technical data
Table 467: 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
±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
Multifrequency admittance-based earth-fault protection
MFADPSDE
4.2.8.1
Identification
Description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Multifrequency admittance-based
earth-fault protection
MFADPSDE
Io> ->Y
67YN
1
Io varied during the test, Uo = 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.
Protection functions
1MRS757644 H
480
620 series
Technical Manual
