A Training Course for Rig Electricians

. Introduction This chapter introduces the fundamental concepts of DCS systems. The terms Supervisory Control and Data Acquisition (SCADA), Distributed Control System (DCS), Programmable Logic Controller (PLC), and Smart Instrument are defined and placed in the context used in this manual. The chapter is split into the following sections:  Definitions of the terms SCADA, DCS, PLC and smart instrument  Remote terminal unit (RTU) structure  PLCs used as RTUs  System reliability and availability  Communication architectures and philosophies  Typical considerations in configuration of a master station

Introduction:  This manual gives a brief description of state-of-the-art technologies used to develop high efficiency motors, including premium efficiency induction motors, permanent magnet motors, and switched reluctance motors. It also analyses issues that affect motor system efficiency and provides guidelines on how to deal with those issues namely by:  Selection of energy‐efficient motors  Properly sizing of motors;  Using Variable Speed Drives (VSDs), where appropriate. The use of VSDs can lead to better process control, less wear in the mechanical equipment, less acoustical noise, and significant energy savings;  Optimisation of the complete system, including, the distribution network, power quality and efficient transmissions;  Motor Systems Energy Assessments  Taking Measurements  Applying best maintenance practices.  Motor Repair  How to win approval for energy efficiency projects  Energy Management Systems