CT Lab Impedo DUO, Руководство пользователя

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Impedo DUO User Guide
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2.3.5 Osprey Pro (Enterprise Support)
When connected, each instrument automatically establishes a permanent secure
communication link to a corporate server (local or internet based). An instrument
management system (IMS) keeps track of each instrument’s location, configuration,
health (telemetry) and PQ data recorded.
Downloading of data is automated and recorded data can be accessed via the
Internet in graphical, tabled and report form as and when it becomes available. Raw
data can be analysed in Osprey Pro
TM
or exported for further analysis in for example
Microsoft Excel
TM
or Matlab
TM
.
Osprey Pro
TM
simplify the analysis of waveform events such as dips and swells by the
time-aggregation of multiple waveform events to single network incidents.
Osprey Pro
TM
classify and report on recorded data according to industry standards
such as NRS048, EN50160 and IEE1158. All communications are encrypted and each
instrument is password protected. More information can please contact CT LAB.
2.3.6 Sampling Rate
The instrument samples all analog input signals at a rate of 500 kHz (10 000 samples
per cycle) and then digitally down-sample the data to 50 kHz (1000 samples per
cycle). All IEC 610000-4-30 parameters are calculated based on this 50 kHz resolution
for both voltage and current.
Waveform and other events are triggered from the 500 kHz digitised waveforms.
These waveforms are locked to the fundamental frequency to prevent multiple zero
crosses.
Captured waveform data can be further subsampled to reduce stored data size. The
user can configure the waveform-sampling rate from 1 kHz to 50 kHz.
Please refer to the Osprey Lite
TM
user manual for more information on selecting the
down-sampling rate.
2.3.7 The 1/6
th
Sense
The Impedo DUO calculates a complete set of 1-cycle sliding RMS and fundamental
phasor parameters on each of the 3 voltage phases resulting in a resolution of 6
values per cycle per phase. The IEC 61000-4-30 Class A requirements are based on a
½ cycle sliding approach. This higher resolution data improves the detail of the event
profile and enable more accurate depth/duration calculations.