Total Evaluation of an Inverter-Controlled Elevator

PZ4000 can make a total evaluation of an inverter-controlled elevator. The figure1 below shows an example of a evaluation connection to an inverter-controlled high-speed gearless elevator. PZ4000 captures motor voltage, current and 3-phase power supply in total series of actions from the start to stop, as shown in the Graph1. Furthermore, it can calculate power values and related parameters in a specific period. Although current signal is controlled to form a sine wave, various functions of PZ4000 works great to measure harmonic components and calculate the total power factor.

Tm Appli Power05 1


Performance required from power meter

  • Power measurement in each running period
  • Determining period to average
  • Large memory(Max.4MW/ch)
  • Harmonic analysis, FFT function

Benefits for the user

  • Measure transient power and the related parameters with high-precision accuracy
Tm Appli Power05 2


Related Products & Solutions

PX8000 Precision Power Scope

The PX8000 is the world's first precision power scope, bringing oscilloscope-style time-based measurement to the world of power analyzers. With up to four channels, it can perform standard multi-phase power measurements. These measurements exist alongside oscilloscope-specific features such as cursor-based specific time period measurements to enable analysis of waveforms with transient components.

PZ4000 Power Analyzer

The PZ4000 is designed for High Frequency Power Measurements as well as Transient Power Measurements. Its real-time acquisition system can perform cycle-by-cycle power measurements. One to Four input elements offer Basic Power Accuracy of 0.2% with 2 MHz Bandwidth and 5MS/sec digitizing rates.