ABB RET650 Technical Manual page 590

Section 17
Basic IED functions
Table 499: SMAI_20_1 Non group settings (advanced)
Name
Negation
MinValFreqMeas
Table 500: SMAI_20_12 Non group settings (basic)
Name
GlobalBaseSel
DFTReference
ConnectionType
AnalogInputType
Table 501: SMAI_20_12 Non group settings (advanced)
Name
Negation
MinValFreqMeas
584
Values (Range) Unit
Off -
NegateN
Negate3Ph
Negate3Ph+N
5 - 200 %
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 UBase. For
example, if UBase 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.
Values (Range) Unit
1 - 6 -
InternalDFTRef -
DFTRefGrp1
DFTRefGrp2
DFTRefGrp3
DFTRefGrp4
DFTRefGrp5
DFTRefGrp6
DFTRefGrp7
DFTRefGrp8
DFTRefGrp9
DFTRefGrp10
DFTRefGrp11
DFTRefGrp12
External DFT ref
Ph-N -
Ph-Ph
Voltage -
Current
Values (Range) Unit
Off -
NegateN
Negate3Ph
Negate3Ph+N
5 - 200 %
Step Default
- Off
1 10
Step Default
1 1
- InternalDFTRef
- Ph-N
- Voltage
Step Default
- Off
1 10
1MRK 504 135-UEN A
Description
Negation
Limit for frequency calculation in % of
UBase
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
UBase
Technical manual