- September 14, 2016
- Yokogawa Corporation of America
September 14, 2016 - Yokogawa Corporation of America announced the WT1800E precision power analyzer. This updated edition of Yokogawa’s digital power analyzer product line offers measurement functions with performance and flexibility, allowing engineers to make electrical power measurements. It is a measurement solution for testing product efficiency and the design of inverters, motor drives, lighting systems, uninterruptible power supplies, aircraft power systems, renewable energy generation and other power conversion devices.
The WT1800E can perform up to six power measurements simultaneously, which enables efficiency tests between the input and output of products such as inverters. The WT1800E was designed for both today’s power measurements and for the advanced complex requirements of future power conversion products.
Many power conversion circuits use switching techniques that can cause distorted voltage or current waveforms with high harmonic content. To measure these waveforms accurately, the WT1800E uses 16-bit analog to digital converters with a digitizing rate of 2 MS/s. Users can measure power from DC and 0.1 Hz to 1 MHz. Basic power measurement accuracy at 50/60 Hz has been improved to 0.05% of reading plus 0.05% of range.
For electric motor testing, the WT1800E offers a “motor evaluation” function as an option. With a WT1800E, you can measure all the electrical power parameters along with rotation speed, torque, mechanical power, synchronous speed, slip, motor efficiency and total system efficiency. In addition, a measurement function has been added to enable detection of the rotation direction of the motor and the electrical angle.
Several options assist with more direct connection to sensors, simplifying tests by avoiding the use of separate hardware. A new current sensor power option can power up to six current sensors directly with a +/-15V supply. With dedicated accessories, the current sensor power option can dramatically improve immunity performance against noise (influence caused by high frequency common mode voltage).
All the latest communication interfaces such as Ethernet, USB and GPIB are included in the WT1800E. New support for the Modbus/TCP protocol enables connection with PLCs and recorders. Further, users can plug in USB removable storage media for local data transfer.