WT5000 Precision Power Analyzer

摘要

We have developed the WT5000 precision power analyzer featuring the world's highest measurement accuracy of ±0.03% and a measurement bandwidth of 0.1 Hz to 5 MHz including DC signals. This model features 50 times the sampling rate and 4 times the resolution of the conventional model WT3000E. With the adoption of modular-type systems, the WT5000 offers improved convenience and expandability, and can be equipped with up to seven input elements. Also, the WT5000 can measure the efficiency of input-output power such as electric vehicles (EV) and plug-in hybrid vehicles (PHV), the rotational speed of up to four motors, and the change of mechanical power with torque, all at the same time. In addition, the large screen and touch-screen display have greatly improved both visibility and usability. This paper describes the technologies that lie behind the world's highest performance, and examples of applications.