This paper presents different types of rectifier schemes such as 12, 18, 24 and 36 for grid utility interface with low power variable frequency drives (VFD). To demonstrate Ithd at a Point of Common Coupling (PCC), system level modelsare developed for different rectifier systems. The configurations are simulated and implemented using MATLAB-Simulink. The study involves comparison of different rectifier schemes with respectiveIEEE-519(2014) standard for various short circuit ratios (SCR).A detailed harmonic analysis of different configurations is made and complete results are presented. A comprehensive study on different rectifier schemes is made and their overall performance isstudied and discussed.