Siemens 9810 Series, User Manual, Page: 148 / 218

Power quality
IEC 60255-24 (COMTRADE)
The meter can provide waveforms in COM mon format for TRA nsient D ata
E xchange (COMTRADE) format. COMTRADE records are generated from the
existing Waveform Recorder modules that are connected to the COMTRADE
module.
See the COMTRADE and ION Technology technical note for details.
IEEE 519
The IEEE 519 framework is composed of numerous ION modules including:
Harmonics Evaluation, Harmonics Measurement, Counter and more.
Disturbance direction detection overview
Your meter has disturbance direction detection capabilities to help you determine
the location of a power system disturbance.
When a disturbance occurs, the meter analyzes the disturbance information to
determine the direction of the disturbance relative to the meter. This analysis
includes a confidence level indicating the level of certainty that the disturbance is
in the determined direction, and is stored in your meter’s event log.
Disturbance direction detection is enabled on your meter by default and does not
require any additional configuration beyond setting the nominal voltage and
nominal frequency.
Disturbance direction detection can help locate the source of a disturbance when
used in a system of disturbance direction detection devices. In the diagram below,
meters (B), (C) and (D) are installed on the power consumer side, while meter (E)
is installed on the utility side.
A. Disturbance location
B. Meter (B) reports downstream
disturbance
C. Meter (C) reports upstream
disturbance
D. Meters (D) report upstream
disturbance
E. Meter (E) reports downstream
disturbance
The arrows show the direction the meters have determined for the disturbance.
With this information, you can determine that the disturbance occurred between
meter (B) and meter (A), and can focus on that section of your system to find the
cause of the disturbance.
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