ABB Relion Technical Manual page 120
Generator protection
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Also See for Relion:
- Commissioning manual (202 pages) ,
- Applications manual (320 pages) ,
- Applications manual (84 pages)
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Section 6
Differential protection
114
BLKUNRES
a
IdUnre
b
IDMAG_A
IBIAS
BLOCK
BLKRES
IDA
Harmonic
Harmonic
Cross Block
from B or C phases
AND
CrossBlockEn=Enabled
ANSI05000168 V2 EN
Figure 38:
Transformer differential protection simplified logic diagram for Phase A
b>a
AND
OR
2nd
5th
Wave
block
1MRK 502 048-UUS A
TRIPUNRE_A
AND
TRIPRES_A
AND
NOT
Cross Block
to B or C phases
AND
OR
ANSI05000168_2_en.vsd
Technical manual
PU_A
BLK2H_A
BLK5H_A
BLKWAV_A
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