Motor Starting Analysis Using ETAP Software

Abstract

This paper investigates the preliminary at the early phase of a project, dynamic behaviour of induction motors during start-up of the induction motor drives fed from single generator unit. It is important to ensure that plant generators operate safely and consistently, so power system studies are required at the planning and conceptual design stage of the project. The most widely recognized and studied effect of motor starting is the voltage dip that is experienced throughout an industrial power system as the direct online result of starting large motors. The dynamic behaviour of the motor terminal voltage, acceleration torque, and slip during Direct-on-Line start-up of the induction motor drives fed from stand alone generator source is also discussed here. Motor starting analysis is used to determine if a motor can be started and how much time is needed for the motor to reach its rated speed, as well as to determine the effect of voltage dips on the system are ensured with the help of Electrical Transient Analyzer Program (ETAP).