Yokogawa WT1805 High Performance Power Analyzer

Measurement: High-precision, wide range, fast-sampling, simultaneous harmonic measurement

• • Voltage and current frequency bandwidth 5 MHz (-3 dB, typical)
  • Reduction of low power-factor error to 0.1% of apparent power (2/3 of previous model)
  • Wide voltage and current range allowing direct input
  • 0.1 Hz low-speed signal power measurement and max. 50 ms high-speed data collection
  • Particular voltage and current range selectable
  • msec response for transient phenomena analysis (/HS option)

Functions  

• Dual harmonic measurement (option)
• Two-channel external signal input is available for power measurement and analog signal data measurement 
• Electrical angle measurement is also supported. Motor evaluation function allowing A-phase, B-phase, and Z-phase inputs

The perspective of the efficient use of energy is boosting demand for inverters to convert 50
Hz or 60 Hz AC power to DC power, grid connection controllers to control reverse power flow occurring due to excess power, and battery chargers/dischargers.
The WT1805 is capable of simultaneously measuring the harmonic distortion of the
input and output current of these devices. Challenging the common wisdom that
“harmonic measurement is limited to a single line,” the WT1805 is capable of
performing two-line simultaneous harmonic measurements. The WT1805 is
also capable of measuring up to the 500th order harmonic even at high fundamental frequencies such as a 400 Hz frequency.

The Yokogawa WT1805 High Performance Power Analyzer has broken the mold and is capable of reading user-created image files (BMP) as display screens to allow viewing data in a flexible format. Thus the display screen can be customized in a more user-friendly and easy-to-read manner.