User manual
IU_M710P_MANUAL_05i00_ENG
Strona 27 z 36
3.11.3.
CDAR - Criterion recorder
Menu > Management > Extensions > CDAR – Criterion recorder
The criterion recorder application is used to record slowly changing signals in the protected object, e.g. motor
start-up sequence. It saves analog values (RMS) and digital signals with sampling frequency 50 Hz. The user
can configure the number of registered signals, recording time before triggering, cause of the start of
recording (binary inputs, binary outputs, digital signals from algorithms or programmable logic and increasing
or decreasing values of analog signals).
The window
Criterion recorder
allows the user to manage the work of a recorder. In particular it allows to
trigger the criterion recorder from the user interface.
For details, refer to the “Criterion Recorder User Manual”.
3.11.4.
PQA – Power Quality Analyzer
Menu > Management > Extensions > PQA – Power Quality Analyzer
The application is intended for energy quality analysis in
the object that is being protected according to PN EN
50160:2002, PN EN 61000-4-7 and PN EN 61000-4-30
standards. It provides the THD value and the harmonic
content (up to the 40th) of phase voltages and currents.
The THD and harmonic content values are used in
harmonic protections, that enable selective localization of
faults, e.g. bearings damage in motor drives, increase in
transformer core magnetization.
The
PQA – Power Quality Analyzer
window displays the
averaged values, harmonic content and THD coefficient.
3.11.5.
SLOG – System Log
Menu > Management > Extensions > SLOG - System Log
System log stores information with date and time stamp, referring to logins of individual users, last change in
set points, last cancelling of signalization, changes in profiles, bay view, parameters of communication ports,
user commands. The log is accessible via SCADA system and ELF software tool.