ABB RELION 620 Series Technical Manual page 552

Section 4
Protection functions
4.3.2.10
546
Name Type
I_ANGL_B1_B2 FLOAT32
I_ANGL_C1_C2 FLOAT32
I_5H_RAT_A FLOAT32
I_5H_RAT_B FLOAT32
I_5H_RAT_C FLOAT32
TR2PTDF Enum
IL1-diff FLOAT32
IL2-diff FLOAT32
IL3-diff FLOAT32
IL1-bias FLOAT32
IL2-bias FLOAT32
IL3-bias FLOAT32
Technical data
Table 491: TR2PTDF Technical data
Characteristic
Operation accuracy
1)2)
Start time
Low stage
High stage
Reset time
Reset ratio
Suppression of harmonics
1) Current before fault = 0.0, f
2) Includes the delay of the output contact. When differential current = 2 × set operate value and f
Hz.
Values (Range)
-180.00...180.00
-180.00...180.00
0.00...1.00
0.00...1.00
0.00...1.00
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
±3.0% of the set value or ±0.002 × I
Minimum
36 ms
21 ms
Typically 40 ms
Typically 0.96
DFT: -50 dB at f = n × f
= 50 Hz, results based on statistical distribution of 1000 measurements
n
1MRS757644 F
Unit Description
deg Current phase angle diff
between winding 1 and 2,
phase B
deg Current phase angle diff
between winding 1 and 2,
phase C
Differential current fifth
harmonic ratio, phase A
Differential current fifth
harmonic ratio, phase B
Differential current fifth
harmonic ratio, 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
±2 Hz
n
n
Typical Maximum
41 ms 46 ms
22 ms 24 ms
, where n = 2, 3, 4, 5, ...
n
Technical Manual
= 50
n
620 series