ABB Relion 650 Series Technical Manual page 465

1MRK 506 326-UUS B
(3PHSUM). The last 10 channels may be connected to internally calculated analog signals available
as function block output signals (phase differential currents, bias currents and so on).
External analog
signals
IEC05000653 V2 EN-US
Figure 243: Analog input function blocks
The external input signals will be acquired, filtered and skewed and (after configuration) available
as an input signal on the AxRADR function block via the SMAI function block. The information is
saved at the Disturbance report base sampling rate (1000 or 1200 Hz). Internally calculated signals
are updated according to the cycle time of the specific function. If a function is running at lower
speed than the base sampling rate, Disturbance recorder will use the latest updated sample until a
new updated sample is available.
Application configuration tool (ACT) is used for analog configuration of the Disturbance report.
The preprocessor function block (SMAI) calculates the residual quantities in cases where only the
three phases are connected (AI4-input not used).SMAI makes the information available as a group
signal output, phase outputs and calculated residual output (AIN-output). In situations where AI4-
input is used as an input signal the corresponding information is available on the non-calculated
output (AI4) on the SMAI function block. Connect the signals to the AxRADR accordingly.
For each of the analog signals,
recorder. The trigger is independent of the setting of
Disabled . Both undervoltage and overvoltage can be used as trigger conditions. The same
set to
applies for the current signals.
Operation = Disabled , no waveform (samples) will be recorded and reported in graph. However,
If
Trip value, pre-fault and fault value will be recorded and reported. The input channel can still be
used to trig the disturbance recorder.
If Operation = Enabled , waveform (samples) will also be recorded and reported in graph.
Line distance protection REL650
Technical manual
SMAI
GRPNAME AI3P
AI1NAME AI1
AI2NAME AI2
AI3NAME AI3
AI4NAME AI4
AIN
Internal analog signals
Operation = Enabled means that it is recorded by the disturbance
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A1RADR
A2RADR
GRPINPUT1
A3RADR
GRPINPUT2
GRPINPUT3
GRPINPUT4
GRPINPUT5
GRPINPUT6
...
A4RADR
INPUT31
INPUT32
INPUT33
INPUT34
INPUT35
INPUT36
...
INPUT40
en05000653-2.vsd
Operation , and triggers even if operation is
Section 13
Monitoring
459