Experience in design, engineering, testing & implementation of electrical systems for a large gas processing plant

This paper presents the experience of the authors in the Design, Engineering, Testing and Implementation of electrical systems for large Gas Processing Plants. The following areas are covered in this paper: 1. Design Criteria for electrical systems 2. Constraints in design & engineering of electrical systems for large plants 3. Development of Protection Control & Power Management system philosophies for different voltage levels 4. Experiences in actual implementation of a project. The paper provides the user with the identification of the critical areas of concern in designing electrical systems for large gas processing plants and highlights the lessons learnt by the authors during the implementation of the project. The paper summarizes the experiences of the electrical equipment vendor, the end customer and the Engineering Procurement & Construction contractor involved in the project. Acronyms: PDCS - Power Distribution Control System PMCS - Power management and control System ATS - Automatic bus transfer system IED - Intelligent Electronic Device ILS - Intelligent Load Shedding FAT - Factory Acceptance Test.