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. 
Solutions
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
Oscilloscopes
World-class digital oscilloscopes from Yokogawa: The digital oscilloscopes have high-speed sampling and a wide range of bandwidths that can be utilized for design and development of electronic devices. The ScopeCorders have the advantages of both a digital oscilloscope and a multi-channel data recorder.
Data Acquisition Equipment
Yokogawa data acquisition systems give you the most flexibility and power to measure, display, store, and even actuate any number of physical or electrical phenomena.
