Simplified Logic Diagrams - ABB REG650 Technical Manual
Generator protection
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Also See for REG650:
- Technical manual (728 pages) ,
- Commissioning manual (144 pages) ,
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Section 7
Impedance protection
7.4.6.2
164
LdAngle
LdAngle
RLd
ANSI10000144 V2 EN
Figure 77:
Characteristic of load encroachment function
The reach is limited by the minimum operation current and the distance measuring zones.
Simplified logic diagrams
Figure
78
schematically presents the creation of the phase-to-phase operating conditions.
X
RLd
LdAngle
R
LdAngle
ANSI10000144-2-en.vsd
1MRK 502 043-UUS B
Technical Manual
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