ABB RELION 620 Series Technical Manual page 474

Section 4
Protection functions
4.2.7.11
4.2.8
4.2.8.1
468
Name Type
ANGLE FLOAT32
ANGLE_RCA FLOAT32
RES_POWER FLOAT32
WPWDE Enum
Technical data
Table 467: WPWDE Technical data
Characteristic
Operation accuracy
1)2)
Start time
Reset time
Reset ratio
Operate time accuracy in definite time mode
Operate time accuracy in IDMT mode
Suppression of harmonics
1) Io varied during the test, Uo = 1.0 × U
unearthed network, the residual power value before fault = 0.0 pu, f
statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact
Multifrequency admittance-based earth-fault protection
MFADPSDE
Identification
Description
Multifrequency admittance-based
earth-fault protection
Values (Range) Unit
-180.00...180.00 deg
-180.00...180.00 deg
-160.000...160.0 xPn
00
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
Current and voltage:
±1.5% of the set value or ±0.002 × I
Power:
±3% of the set value or ±0.002 × P
Typically 63 ms
Typically 40 ms
Typically 0.96
±1.0% of the set value or ±20 ms
±5.0% of the set value or ±20 ms
-50 dB at f = n × f
= phase-to-earth voltage during earth fault in compensated or
n
IEC 61850 IEC 60617
identification identification
MFADPSDE Io> ->Y
1MRS757644 F
Description
Angle between polarizing
and operating quantity
Angle between operating
angle and characteristic
angle
Calculated residual
active power
Status
n
n
, where n = 2,3,4,5,...
n
= 50 Hz, results based on
n
ANSI/IEEE C37.2
device number
67YN
620 series
Technical Manual