ABB RED650, Applications Manual

Page: 415 / 454

21.9.1 Application
SEMOD55213-5 v4
The Signal matrix for binary outputs function SMBO is used within the
Application Configuration tool in direct relation with the Signal Matrix tool.
SMBO represents the way binary outputs are sent from one IED configuration.
21.9.2 Setting guidelines
SEMOD55228-5 v2
There are no setting parameters for the Signal matrix for binary outputs SMBO
available to the user in Parameter Setting tool. However, the user must give a name
to SMBO instance and SMBO outputs, directly in the Application Configuration
tool. These names will define SMBO function in the Signal Matrix tool.
21.10 Signal matrix for analog inputs SMAI
SEMOD55751-1 v2
21.10.1 Application
SEMOD55744-4 v10
Signal matrix for analog inputs (SMAI), also known as the preprocessor function
block, analyses the connected four analog signals (three phases and neutral) and
calculates all relevant information from them like the phasor magnitude, phase
angle, frequency, true RMS value, harmonics, sequence components and so on.
This information is then used by the respective functions connected to this SMAI
block in ACT (for example protection, measurement or monitoring functions).
21.10.2 Frequency values
GUID-B494B93C-B5AA-4FD6-8080-8611C34C2AD8 v5
The SMAI function includes a functionality based on the level of positive sequence
voltage,
MinValFreqMeas , to validate if the frequency measurement is valid or not.
If the positive sequence voltage is lower than MinValFreqMeas , the function
freezes the frequency output value for 500 ms and after that the frequency output is
set to the nominal value. A signal is available for the SMAI function to prevent
operation due to non-valid frequency values.
MinValFreqMeas is set as % of
UBase /√3
If SMAI setting ConnectionType is Ph-Ph , at least two of the inputs GRPxL1,
GRPxL2 and GRPxL3, where 1≤x≤12, must be connected in order to calculate the
positive sequence voltage. Note that phase to phase inputs shall always be
connected as follows: L1-L2 to GRPxL1, L2-L3 to GRPxL2, L3-L1 to GRPxL3. If
SMAI setting
ConnectionType is Ph-N , all three inputs GRPxL1, GRPxL2 and
GRPxL3 must be connected in order to calculate the positive sequence voltage.
If only one phase-phase voltage is available and SMAI setting ConnectionType is
Ph-Ph , the user is advised to connect two (not three) of the inputs GRPxL1,
GRPxL2 and GRPxL3 to the same voltage input as shown in figure 168 to make
SMAI calculate a positive sequence voltage.
1MRK 505 393-UEN B
Section 21
Basic IED functions
Line differential protection RED650 2.2 IEC 409
Application manual