Operation Principle - ABB Relion 650 Series Technical Manual

Section 15
Basic IED functions
Table 518: SMAI2 Non group settings (basic)
Name
GlobalBaseSel
DFTReference
ConnectionType
AnalogInputType
Table 519: SMAI2 Non group settings (advanced)
Name
Negation
MinValFreqMeas
15.8.5
640
Values (Range) Unit
1 - 12 -
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 %

Operation principle

Every Signal matrix for analog inputs function (SMAI) can receive four analog
signals (three phases and one neutral or residual value), either voltage or current,
see figure 285 and figure 286. SMAI outputs give information about every aspect
of the 3ph analog signals acquired (phase angle, RMS value, frequency and
frequency derivates etc. – 244 values in total). The BLOCK input will force all
outputs to value zero if BLOCK is TRUE (1). However, when the disturbance
recorder is connected to the single-phase outputs of SMAI, the sample data to the
disturbance recorder will not be blocked. The disturbance recorder bypasses SMAI
to the sample data channels.
System phase rotation and frequency are defined using the PhaseRotation and
Frequency settings in the primary system values PRIMVAL function. Logic 1 in
the REVROT input to the SMAI function means that the phase rotation is changed
relative to the set PhaseRotation in PRIMVAL.
Step Default
1 1
- InternalDFTRef
- Ph-N
- Voltage
Step Default
- Off
1 10
1MRK 511 424-UEN B
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
Bay control REC650 2.2 IEC
Technical manual
PID-3406-SETTINGS v5
SEMOD55746-4 v14