In an electrical system, power quality (PQ) is becoming significant to all types of consumers. With the increase of power demand from end users, maintaining the quality of power within the limitations is a major problem. This paper describes power quality issues like voltage sag, voltage variations, voltage fluctuations, individual harmonics, inter-harmonics and power frequency variations in a grid connected system with a three-phase induction motor connected as a load. This system is tested in according to International Electro technical Commission (IEC) Std. 61000-4-11/4-13/4-14/4-28 which are allowed to the load through a regenerative grid simulator. Test procedures of the system equipment and the detailed analysis of the monitored and measured results are also described in this paper. © 2020 Walter de Gruyter GmbH, Berlin/Boston 2020.