Monitored Data; Technical Data; Harmonics-Based Earth-Fault Protection Haefptoc; Identification - ABB RELION REX640 Technical Manual

1MRS759142 C
4.2.5.9
4.2.5.10
4.2.6
4.2.6.1
REX640
Technical Manual

Monitored data

Table 527: MREFPTOC Monitored data
Name Type
START_DUR FLOAT32
MREFPTOC Enum

Technical data

Table 528: MREFPTOC Technical data
Characteristic
Operation accuracy
1)2)
Start time
I
Fault
value
Reset time
Reset ratio
Retardation time
Operate time accuracy
Suppression of harmonics
1) Current before fault = 0.0 × I
random phase angle, results based on statistical distribution of 1000 measurements
2) Includes the delay of the signal output contact

Harmonics-based earth-fault protection HAEFPTOC

Identification

Description
Harmonics-based earth-fault protection
Values (Range) Unit
0.00...100.00
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the current
measured: f
±1.5% of the set value or ±0.002 × I
Minimum
Start
= 1.2 × set
30 ms
<50 ms
Typically 0.96
<50 ms
±1.0% of the set value of ±20 ms
-50 dB at f = n × f
, f = 50 Hz, earth-fault current with nominal frequency injected from
n n
IEC 61850
identification
HAEFPTOC
Section 4
Protection functions
Description
% Ratio of start time /
operate time
Status
±2 Hz
n
n
Typical Maximum
34 ms 38 ms
, where n = 2, 3, 4, 5,...
n
IEC 60617 ANSI/IEEE C37.2
identification device number
Io>HA 51NH
487