Circutor Q20711, Руководство пользователя

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2.1.- Basic features
The QNA-P/PV is an analyzer specifically designed to check electrical power
supply quality in accordance with the IEC 61000-4-30 standard.
In addition to the A.C. voltage inputs (insulated by transformers), the
instrument is equipped with 4 inputs of 2V (clamps) . which allows the QNA-P/PV to
also be used as a network analyzer.
Its design in suitcase of high robustness (IP67) that makes an equipment ideal
to measure in severe environmental conditions.
Moreover, the great variety of available models makes the QNA-P/PV suitable
for any situation and communication mode.
The instrument’s internal battery ensures continuity of measurement by the
QNA-P/PV analyzer in the event of any loss in voltage supply (short or long-term line
interruption).
QNA-P/PV is equipped with three A.C. voltage inputs which permit
simultaneous voltage measurement in all three phases, together with frequency
measurement in any power system.
To analyse electrical power supply quality in accordance with IEC 61000-4-30,
the
QNA-P/PV uses a DSP
to analyse all cycles from all three voltage phases to
detect the occurrence of any event (voltage dip, voltage swell, interruption).
Harmonic and flicker is also calculated in accordance with IEC61000-4-7 and
61000-4-15 , respectively,.
The QNA-P/PV’s input 2V (2V / 5A) can analyse the main electrical
parameters in 4 quadrants (Energy consumption and generation).
The QNA also has a Neutral current entry and another for Neutral-Earth
voltage measurement. These parameters complete the information that the QNA is
able to supply to study the electric network.
The QNA-P/PV analyzer is equipped with a built in 4 Mbytes memory to
receive quality, events and electrical parameters.