Technical Data; Third Harmonic-Based Stator Earth-Fault Protection H3Efpsef; Identification - ABB RELION REX640 Technical Manual

1MRS759142 C
4.2.7.12
4.2.8
4.2.8.1
REX640
Technical Manual
Name Type
ANGLE_RCA FLOAT32
RES_POWER FLOAT32
WPWDE Enum

Technical data

Table 547: WPWDE Technical data
Characteristic
Operation accuracy
Start time 1)2)
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
un-earthed 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
Third harmonic-based stator earth-fault protection
H3EFPSEF

Identification

Function description
Third harmonic-based stator earth-fault
protection
Protection functions
Values (Range) Unit
-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
H3EFPSEF dUo>/Uo3H
Section 4
Description
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
64TN
509