Power distribution and quality remain the key challenges facing the electrical utilities industry. Technology alone cannot provide a solution to power quality problems, and there exists a variety of procedures and programs that can be put in place to ensure reliable, high quality electricity. With chapters carefully culled from the best-selling Electric Power Distribution Handbook, Distribution Reliability and Power Quality provides an economical, sharply focused reference for engineers and technicians working in this specialty area of power distribution. The book introduces the concept of reliability, outlining various methods of assessing and improving reliability along with the factors that affect it. It follows with a detailed look at voltage sags and momentary interruptions, various solutions to these issues, power quality monitoring, and other quality issues such as voltage unbalance and harmonics. Because faults are the cause of many interruptions and other power quality problems, the author devotes a detailed chapter to various aspects of faults. Focused on enhancing the delivery of high-quality power, this volume includes a new chapter on reliability and power quality improvement programs that provide a roadmap to better performance and ultimately to higher efficiency. Presenting a host of practical solutions for reliability and power quality specialists, Distribution Reliability and Power Quality gathers critical tools, techniques, and knowledge into a single source that is ideally suited for immediate implementation.... (n = 33) Overall Weak Link Percentage Emergency off (EMO) circuit: pilot relay (33%), main contactor (14%) 47% dc power supplies: PC (7%), controller (7%) ... 220.127.116.11 Relays and Contactors Contactors are electromechanical switches used for a variety of power and control applications. ... Some of the most sensitive relays are small industrial relays with clear plastic cases referred to as ice-cube relays.
|Title||:||Distribution Reliability and Power Quality|
|Author||:||Thomas Allen Short|
|Publisher||:||CRC Press - 2005-11-01|