ABB RELION 620 Series Technical Manual page 513

1MRS757644 F
4.3.1.9
620 series
Technical Manual
Name Type
I_ANGL_A1_A2 FLOAT32
I_ANGL_B1_B2 FLOAT32
I_ANGL_C1_C2 FLOAT32
MPDIF Enum
IL1-diff FLOAT32
IL2-diff FLOAT32
IL3-diff FLOAT32
IL1-bias FLOAT32
IL2-bias FLOAT32
IL3-bias FLOAT32
Technical data
Table 482: MPDIF Technical data
Characteristic
Operation accuracy
Biased low stage
1)2)
Operate time
Instantaneous high
stage
Reset time
Reset ratio
Retardation time
1) Fn = 50 Hz, results based on statistical distribution of 1000 measurements
2) Includes the delay of the high speed power output contact
High operate value
3) Ifault = 2 x
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
At the frequency f = fn
±3% of the set value or ±0.002 x In
Typical 40 ms (±10 ms)
Typical 15 ms (±10 ms)
3)
<40 ms
Typically 0.96
<20 ms
Section 4
Protection functions
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
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