In recent years, using of small generators connected to distribution networks has been increaseingly\r\npreferred to supply local loads. They are called embedded or distributed generators\r\nbecause of they are connected to distribution networks. Both of them are generally used\r\nsynonymously and interchangeable. In this study, dynamic performances of embedded generators\r\nare observed during and after the faults. The effects of symmetrical and unsymmetrical\r\nfaults on the operation of the industrial plant included embedded generation units and also the\r\nstability of embedded generators is investigated for a medium voltage radial distribution network.\r\nSmall-embedded generators are subjected to low frequency electromechanical oscillations that\r\ncause dynamic instability problems due to faults in utility side or inside. In this paper, these\r\noscillations caused by balanced and unbalanced faults are simulated by using SIMPOW simulation\r\nsoftware tool.
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