3. The method of claim 2 , wherein the one or more features comprises combination of features including active/reactive power levels, power factors, harmonic distortions and transient signatures.
3. The method of claim 2 , wherein the one or more features comprises combination of features including active/reactive power levels, power factors, harmonic distortions and transient signatures. 4. The method of claim 3 , wherein the one or more features are extracted by two steps approach comprising: obtaining a set of signatures corresponding to one or more appliances based a set of parameters from electric current data; and modifying a signature from the set of signatures associated with a particular appliance to obtain one or more features.