Measures everything

  • Measure true-rms
  • peak voltage and current
  • frequency
  • dips and swells
  • transients
  • interruptions
  • power and power consumption
  • peak demand
  • harmonics up to the 50th
  • inter-harmonics
  • flicker
  • mains signaling
  • inrush and unbalance












PowerWave data capture

For some users, loads switching is a cause of power quality problems. When loads switch on, the current draw sometimes causes the voltage to drop to a level that causes other equipment to malfunction. The PowerWave function available in the 435 to capture voltage, current and frequency signals simultaneously at a high speed to see which interaction is potentially causing problems. PowerWave goes beyond standard power quality measurements; PowerWave’s fast data capture mode enables system dynamics to be characterized. Waveforms for voltage and current are continuously captured for the specified time, and are displayed on screen in high detail; the power waveform is derived from the data. In addition, half-cycle RMS values for voltage, current, power and frequency can be stored and retrieved for analysis. This feature is particularly useful for testing of standby generation systems and UPS systems where reliable switch-on can be vital.

Power inverter efficiency

Power inverters take dc current and transform it into ac current, or vice versa. Solar generation systems usually include an inverter that takes the dc energy from the solar cells and converts it to useful ac power. Inverters can lose performance over time and need to be checked. By comparing the input power with the output power you can determine the system efficiency. All 430 Series II models can measure the efficiency of such inverters by simultaneously measuring the dc and ac power of a system to determine how much power is lost in the conversion process.