ower quality measurement is a relatively new, and quickly evolving field. There are hundreds of manufacturers around the world with unique measurement methodologies. Whereas basic single- and three-phase electrical measurements, like rms voltage and current were defined long ago, many power quality parameters were not previously defined, forcing manufacturers to develop their own algorithms. With so much variation between instruments, electricians tend to waste too much time trying to under-stand an instrument's capabilities and measurement algorithms instead of understanding the quality of the power itself!

The new IEC 61000-4-30 Class-A standard takes the guesswork out of selecting a power quality instrument. The standard IEC 61000-4-30 defines the measurement methods for each parameter to obtain reliable, repeatable, and comparable results. In addition, the accuracy, bandwidth, and minimum set of parameters are all clearly defined.

The Fluke 1760 is fully compliant with the new IEC 61000-4-30 Class-A standard, which defines the measurement methods required for each power parameter in order to obtain reliable, repeatable, and comparable results. With the GPS time synchronization accessory, data recorded with multiple instruments can be correlated with Class-A precision.