ABB RELION REB500 Technical Manual page 41
Bay protection functions
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Also See for RELION REB500:
- Operation manual (110 pages) ,
- Applications manual (108 pages) ,
- Engineering manual (98 pages)
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1MRK 505 406-UEN B
Table 45: VT supervision
Text
VTSupBlkMode
VTSupBlkDel
VTSupDebDel
U0min VTSup
U2min VTSup
I0min VTSup
I2min VTSup
Bay protection functions REB500
Technical manual
Explanation
off:
ZeroSeq:
NegSeq:
Zero × NegSeq:
Special:
Delayed blocking of the distance function (12 s) for operation of the VT
supervision.
•
off immediate blocking
•
on delayed blocking
Delay (1 s) for resetting blocking by the VT supervision.
•
off immediate reset
•
on delayed reset
Pick-up setting of the neutral voltage (U0) for VT supervision referred to the
rated VT voltage 100/√3 or 200/√3.
Pick-up setting of the negative sequence voltage (U2) for VT supervision
referred to the rated VT voltage 100/√3 or 200/√3.
Pick-up setting of the neutral current (I0) for VT supervision.
Pick-up setting of the NPS current (I2) for VT supervision.
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Function disabled
U I
0
0
U I
2
2
U I
U I
0
0
2
2
U
I
I
2
0
2
Section 5
Bay protection functions
35
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