Current and voltage measurement
Figure. 4.6. - 23. Current measurement submenu.
Both the
Current measurement
and the
Voltage measurement
submenus include various individual
measurements for each phase or phase-to-phase measurement.
The
Current measurement
submenu has been divided into four sections: "Phase currents", "Residual
currents", "Sequence currents", and "Harmonics".
"Phase currents" and "Residual currents" have been further divided into four subsections ("Per-
unit currents", "Primary currents", "Secondary currents" and "Phase angle"), and they display the
fundamental component, TRMS and peak-to-peak values, amplitude and power THD values as
well as the angle of each measured component.
"Sequence currents" has also been further divided into the four above-mentioned sections, and
it calculates the positive, negative and neutral sequence currents.
"Harmonics" displays current harmonics up to the 31
st
harmonic for the three phase
current (IL1, IL2, IL3) as well as the two residual currents (I01, I02); each component can be
displayed as absolute or percentage values, and as primary or secondary amperages or in per-
unit values.
The
Voltage measurement
submenu has been also divided into four sections: "Voltage inputs",
"Sequence voltages", "System voltages", and "Harmonics".
"Voltage inputs" displays the values of per-unit and secondary voltages as well as phase angles.
"Sequence voltages" displays the per-unit, primary and secondary voltages as well as phase
angles, and it calculates the positive, negative and neutral sequence voltages.
"System voltages" displays primary voltage magnitudes and primary voltage angles.
"Harmonics" displays harmonics up to the 31
st
harmonic for all four voltages (U1, U2, U3, U4);
each component can be displayed as absolute or percentage values, and as primary or
secondary voltages or in per-unit values.
Power and energy measurement
The Power and energy measurement submenu includes three sections: "Power and energy
measurement settings", "Power measurements" and "Energy measurements". As the name suggests,
the rst section determines the settings by which the power and energy calculations are made. In the
settings you can also activate (and then set the parameters) for the Energy dose counter mode. "Power
measurements" displays all three-phase powers as well as the powers of individual phases. "Energy
measurements" displays the three-phase energy as well as the energies of the individual phases.
AQ-E215
Instruction manual
Version: 2.01
25
© Arcteq Relays Ltd
Содержание AQ-E215
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