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ManualsBrandsChauvin Arnoux ManualsElectrical & Electronic Test InstrumentsPower Quality Analyzer 1000 VAC 6500 AAC
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Vpk- Minimum peak value of the phase-to-neutral voltage (phase voltage).
Vh Harmonic of the phase-to-neutral voltage (phase voltage).
Voltage dip: temporary fall of voltage, at some point in the power network, to below a speciļ¬ed threshold.
Voltage unbalance in a polyphased electric power network: state in which the RMS voltages between conductors (fundamental
component) and/or the phase differences between successive conductors are not all equal.
Vrms RMS phase-to-neutral voltage (phase voltage).
Vthd Total harmonic distortion of phase-to-neutral voltage (phase voltage).
Vthdf Total harmonic distortion of phase-to-neutral voltage (phase voltage) with the fundamental RMS value as reference.
Vthdr Total harmonic distortion of phase-to-neutral voltage (phase voltage) with the total RMS value without DC as refer-
ence.
Vunb Negative-sequence unbalance rate in phase-to-neutral voltage (phase voltage).
Wh Watt-hour.