Monitored Data; Technical Data; Differential Protection; Line Differential Protection With Inzone Power Transformer Lnpldf - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.2.9.9
4.2.9.10
4.3
4.3.1
4.3.1.1
554

Monitored data

Table 569: MFADPSDE Monitored data
Name Type
START_DUR FLOAT32
ANGLE FLOAT32
I_OPER FLOAT32
MFADPSDE Enum

Technical data

Table 570: MFADPSDE Technical data
Characteristic
Operation accuracy
1)
Start time
Reset time
Operate time accuracy
1) Includes the delay of the signal output contact, results based on statistical distribution of 1000
measurements

Differential protection

Line differential protection with inzone power transformer
LNPLDF

Identification

Function description
Line differential protection with in-zone
power transformer
Values (Range) Unit
0.00...100.00 %
-180.00...180.00 deg
0.000...40.000 xIn
1=on
2=blocked
3=test
4=test/blocked
5=off
Value
Depending on the frequency of the measured
voltage:
f ±2 Hz
n
±1.5% of the set value or ±0.002 × U
Typically 35 ms
Typically 40 ms
±1.0% of the set value or ±20 ms
IEC 61850 IEC 60617
identification identification
LNPLDF 3Id/I>
1MRS759142 C
Description
Ratio of start time /
operate time
Angle between polarizing
and operating quantity
Calculated operating
current
Status
n
ANSI/IEEE C37.2
device number
87L
REX640
Technical Manual