ABB Relion REB500, Руководство по применению

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1MRK 505 353-UEN
Section 6
BP-Additions to base documentation
Application Manual 39
Bay protection functions REB500
Table 46 Distance Protection 21 (PDIS)
Function/ Parameter Range/ Value
•
Impedance measurement
-300 to 300
W
/ph in steps of 0.01
W
/ph
• Zero-sequence current compensation 0 to 8 in steps of 0.01,
-180° to +90° in steps of 1°
•
Mutual impedance for parallel circuit lines 0 to 8 in steps of 0.01,
-90° to +90° in steps of 1°
• Time step setting range 0 to 10 s in steps of 0.01 s
•
Underimpedance starters
-999 to 999
W
/ph in steps of 0.1
W
/ph
•
Overcurrent starters
0.5 to 10 I
N
in steps of 0.01 I
N
•
Min. operating current
0.1 to 2 I
N
in steps of 0.01 I
N
•
Back-up overcurrent
0 to 10 I
N
in steps of 0.01 I
N
• Neutral current criterion 0.1 to 2 I
N
in steps of 0.01 I
N
• Neutral voltage criterion 0 to 2 U
N
in steps of 0.01 U
N
• Low-voltage criterion for detecting, for example, a weak infeed 0 to 2 U
N
in steps of 0.01 U
N
VT supervision
• NPS/neutral voltage criterion
•
NPS/neutral current criterion
0.01 to 0.5 U
N
in steps of 0.01 U
N
0.01 to 0.5 I
N
in steps of 0.01 I
N
Operating times of the distance protection function (including tripping relay)
• minimum
• typical
(see also isochrones
•
Figure 23
)
20 ms
25 ms
Typical reset time
35 ms
VT-MCB auxiliary contact requirements
•
Operation time <15 ms
·
Five measuring stages with polygonal impedance characteristic forward and backward
·
All values of settings referred to the secondaries, every zone can be set independently of the others
·
4 independent parameter sets
Accuracies Value
Amplitude error ±
5% for U/UN >0.1
Phase error
±2° for U/U
N
>0.1
Applicable for current time constants between 40 and 150 ms
For details about distance protection operating times see Figure 23