The Study and Analysis New Method for Improving Transient Stability IEEE-9 Bus System

System stability study is the important parameter of economic, reliable and secure power system planning and operation. Power system studies are important during the planning and conceptual design stages of the project as well as during the operating life of the plant periodically. This paper presents the power system stability analysis for IEEE-9 bus test system. The fault is created on different busses and transient stability is analyzed for different load and generation conditions. The critical clearing time is calculated by using time domain classical extended equal area criterion method. The system frequency and voltage variation is observed for different fault locations and critical clearing time. The IEEE9 bus test system is simulated and stability is analyzed on ETAP software.