ABB REG650 Technical Manual page 572

Generator protection
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Section 17
Basic IED functions
Table 443:
SMAI_20_1 Non group settings (advanced)
Name
Values (Range)
Negation
Disabled
NegateN
Negate3Ph
Negate3Ph+N
MinValFreqMeas
5 - 200
Table 444:
SMAI_20_12 Non group settings (basic)
Name
Values (Range)
GlobalBaseSel
1 - 6
DFTReference
InternalDFTRef
DFTRefGrp1
DFTRefGrp2
DFTRefGrp3
DFTRefGrp4
DFTRefGrp5
DFTRefGrp6
DFTRefGrp7
DFTRefGrp8
DFTRefGrp9
DFTRefGrp10
DFTRefGrp11
DFTRefGrp12
External DFT ref
ConnectionType
Ph-N
Ph-Ph
AnalogInputType
Voltage
Current
Table 445:
SMAI_20_12 Non group settings (advanced)
Name
Values (Range)
Negation
Disabled
NegateN
Negate3Ph
Negate3Ph+N
MinValFreqMeas
5 - 200
566
Unit
Step
Default
-
-
Disabled
%
1
10
Even if the AnalogInputType setting of a SMAI block is set to Current,
the MinValFreqMeas setting is still visible. This means that the
minimum level for current amplitude is based on VBase. For example,
if VBase is 20000, the minimum amplitude for current is 20000 * 10%
= 2000. This has practical affect only if the current measuring SMAI is
used as a frequency reference for the adaptive DFT. This is not
recommended, see the Setting guidelines.
Unit
Step
Default
-
1
1
-
-
InternalDFTRef
-
-
Ph-N
-
-
Voltage
Unit
Step
Default
-
-
Disabled
%
1
10
1MRK 502 043-UUS B
Description
Negation
Limit for frequency calculation in % of VBase
Description
Selection of one of the Global Base Value
groups
DFT reference
Input connection type
Analog input signal type
Description
Negation
Limit for frequency calculation in % of VBase
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