• Should the function record faults only for the protected object or cover more?
• How long is the longest expected fault clearing time?
• Is it necessary to include reclosure in the recording or should a persistent fault
generate a second recording (PostRetrig)?
Minimize the number of recordings:
• Binary signals: Use only relevant signals to start the recording that is, protection trip,
carrier receive and/or pickup signals.
• Analog signals: The level triggering should be used with great care, since unfortunate
settings will cause enormously number of recordings. If nevertheless analog input
triggering is used, chose settings by a sufficient margin from normal operation values.
Phase voltages are not recommended for trigging.
There is a risk of flash wear out if the disturbance report triggers too often.
Remember that values of parameters set elsewhere are linked to the information on a
report. Such parameters are, for example, station and object identifiers, CT and VT ratios.
18.7 Logical signal status report BINSTATREP
18.7.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Logical signal status report BINSTATREP - -
18.7.2 Application
The Logical signal status report (BINSTATREP) function makes it possible to poll signals
from various other function blocks.
BINSTATREP has 16 inputs and 16 outputs. The output status follows the inputs and can
be read from the local HMI or via SPA communication.
When an input is set, the respective output is set for a user defined time. If the input signal
remains set for a longer period, the output will remain set until the input signal resets.
Section 18 1MRK 506 369-UUS -
Monitoring
844 Line distance protection REL670 2.2 ANSI
Application manual
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