Technical Data - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.3.7.10
720
Name Type
I_ANGL_A1_A2 FLOAT32
I_ANGL_B1_B2 FLOAT32
I_ANGL_C1_C2 FLOAT32
MPDIF Enum
IL1-diff:1 FLOAT32
IL2-diff:1 FLOAT32
IL3-diff:1 FLOAT32
IL1-bias:1 FLOAT32
IL2-bias:1 FLOAT32
IL3-bias:1 FLOAT32

Technical data

Table 649: MPDIF Technical data
Characteristic
Operation accuracy
1)2)
Operate time
Low stage
High stage
Reset time
Reset ratio
Retardation time
Suppression of harmonics
1) F = 50 Hz, results based on statistical distribution of 1000 measurements
n
2) Measured with static power output (SPO)
Values (Range) Unit
-180.00...180.00 deg
-180.00...180.00 deg
-180.00...180.00 deg
1=on
2=blocked
3=test
4=test/blocked
5=off
0.00...80.00
0.00...80.00
0.00...80.00
0.00...80.00
0.00...80.00
0.00...80.00
Value
Depending on the frequency of the measured
current: f ±2 Hz
n
±3.0% of the set value or ±0.002 x I
Minimum
32 ms
9 ms
Typically 40 ms
Typically 0.95
<20 ms
DFT: -50 dB at f = n × f
1MRS759142 C
Description
Current phase angle diff
between line and neutral
side, Phase A
Current phase angle diff
between line and neutral
side, Phase B
Current phase angle diff
between line and neutral
side, Phase C
Status
Measured differential
current amplitude phase
IL1
Measured differential
current amplitude phase
IL2
Measured differential
current amplitude phase
IL3
Measured bias current
amplitude phase IL1
Measured bias current
amplitude phase IL2
Measured bias current
amplitude phase IL3
n
Typical Maximum
35 ms 37 ms
13 ms 19 ms
, where n = 2, 3, 4, 5...
n
REX640
Technical Manual