ABB 650 series Applications Manual page 94
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Also See for 650 series:
- Engineering manual (130 pages) ,
- Technical manual (778 pages) ,
- Product manual (33 pages)
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Section 6
Multipurpose protection
88
Furthermore the other build-in protection elements can be used for other protection
and alarming purposes.
Q [pu]
A
0.8
0.6
0.4
0.2
0
0.2
0.4
0.6
-rca
-0.2
-0.4
ILowSet
D
Operating Region
-0.6
-0.8
IEC05000535 V2 EN-US
Figure 29:
Loss of excitation
B
P
1
0.8
1.2
1.4
[pu]
C
1MRK 511 423-UEN A
Operating region
ILowSet
I
PS
rca
U
PS
en05000535.vsd
Bay control REC650 2.2 IEC
Application manual
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