Harmonics and interharmonics are some of the most complex power quality quantities to measure and analyze. The Revolution is capable of recording interharmonic data, and ProVision can present the data, but choosing to record all interharmonics for all channels may not always be the best choice. In many cases, specific interharmonic data is not needed; in these cases interharmonic THDs may suffice. This whitepaper gives an overview of using THD groups and subgroup recordings with the Revolution to determine if harmonic and interharmonic problems exist, to give information about the type of problem, and to show where to look next for further analysis
This white paper includes: