Page 90 - SACE Tmax XT - Catalogue

3/56 SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS

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Ekip Touch/Hi-Touch

Measurement functions and data

Currents Datalogger
All the Ekip Touch/Hi-Touch trip units measure This function allows the data related to a trigger
the RMS value of the instantaneous currents of event to be recorded. These data are:
the three phases and the neutral. There are two • Analog measurements: phase currents and
different levels of accuracy depending on the ver- phase-to-phase voltages
sion (0.5% and 1%). In addition, also the mini- • Digital events: protection alarms, circuit-
mum and maximum values recorded within an ad- breaker status signals, tripping of protections.
justable time interval are available. When the datalogger is activated, the trip unit
continuously acquires data by filling and empty-
Voltage ing an internal register. If a trigger event occurs,
Instantaneous phase-to-phase and phase-to- the trip unit inhibits acquisition (either immedi-
neutral voltages can be measured. They are ately or with an adjustable time-lag) and stores
available at a 0.5% level of accuracy. In addition, the data, which is available for downloading.
the minimum and maximum values recorded
within an adjustable time interval are available. Network Analyzer
This function fully evaluates the quality of the
Power network. It is possible to set the controls to long
Real time measurements of the total and phase cycle voltage and current in order to analyze the
power. Available at 2 different level of accuracy system functionality. Voltages and currents are
depending on the version, 1 % and 2%. In addi- monitored to find:
tion, the minimum and maximum values recorded • The sequence of voltages
within an adjustable time interval are available. • Short term voltage drops or interruptions
• Short duration voltage increases
Energy meters • Slow voltage drops
Measurements of the active, reactive and apparent • Slow voltage increases
energy totals, updated every minute. The meas- • Unbalances between the voltages
urements can be reset when needed. • Harmonic distortion of voltages and currents.

Frequency Waveforms
Measurement of line real time frequency, ex- A selected quantity can be represented as a wave-
pressed in hertz. form and acquired at the moment of selection.
The phase current and phase-phase voltage can
Peak Factor be displayed.
Real time measurements of the peak factors of
the phase currents. The measurements are ex- Harmonics
pressed as a ratio between the peak values and A representation in the form of a histogram of the
RMS values, for each single phase. measurements of the harmonics that make up the
waveform, and related to the frequency set.
Power Factor
Power factor and real time measurements of the
ratio between the total active power and total
apparent power, expressed as Cosϕ. In addition,
the trip unit signals an alarm if the cosϕ value
drops below an adjustable threshold, settable via
Ekip Connect software (from 0.5 to 0.95).