Power quality
- Power quality overviewYour meter measures voltage and current harmonics, and calculates several harmonic distortion values, including K-factor and crest factor.
- Power quality configurationUse ION Setup to configure sag/swell, transient and advanced power quality logging.
- Power quality logging
- Configuring Advanced PQUse ION Setup to configure your meter’s power quality (PQ) monitoring and logging settings for IEC 61000-4-30, EN 50160, IEEE 519 and Rapid Voltage Change (RVC).
- Rapid Voltage Change overviewRapid Voltage Change (RVC) is a quick transition in RMS voltage between two steady-state conditions, during which the voltage does not exceed the sag/swell thresholds.
- Harmonics overviewHarmonics are integer multiples of the fundamental frequency of the power system.
- Viewing harmonics information using the displayYou can view detailed harmonics data through the display.
- Voltage crest factorCrest factor is the ratio of peak to RMS voltage values.
- Current crest factorCrest factor is the ratio of peak to RMS current values.
- K-factorK-factor relates the heating effect of a distorted current in a transformer to a sinusoidal current with the same RMS magnitude — it describes a transformer’s ability to serve non-linear loads without exceeding rated temperature rise limits.
- Harmonic content calculationsHarmonic content (HC) is equal to the RMS value of all the non-fundamental harmonic components in one phase of the power system.
- THD% calculationsTHD% is a quick measure of the total distortion present in a waveform and is the ratio of harmonic content (HC) to the fundamental harmonic (H1).
- thd and TDDYour meter can be configured to provide thd (total harmonic distortion using the total RMS value for the content rather than the fundamental content) and TDD (total demand distortion, the harmonic current distortion against the maximum demand of the electrical system).
- PhasorsPhasors are used to represent the voltage and current magnitude and angles.
- Power quality standards complianceYour meter is compliant with the following power quality standards.
- Disturbance direction detection overviewYour meter has disturbance direction detection capabilities to help you determine the location of a power system disturbance.
- COMTRADEYour meter can generate COMTRADE files and store them on the meter’s internal SFTP site.
- Waveforms on your meter’s webpagesYou can use the waveform viewer on the meter’s webpages to view waveforms generated as a result of power quality events.
- Burst data loggingBurst data logging is a recording method that captures a snapshot of data that occurred immediately before and immediately after a triggered recording.
- Waveform captureThe meter’s Waveform Recorder modules capture waveform data.