**The major contributions are:**


This paper is organized as follows: Section 2 discusses the method for the measurement of percentage THD. Section 3 describes the real-time measurement of percentage THD using EDLIFFT with a 4MSW on NI-LabVIEW for various combinations of real-world appliances. Section 4 discusses the results and establishes that percentage THD is a reliable single feature to identify the load consumption pattern; Section 5 concludes with a brief recap.
