The protection which is installed on an industrial power system is likely to be subjected to more difficult conditions than the protection on any other kind of power system. Starting with the many simple devices which are employed and covering the whole area of industrial power system protection, this book aims to help achieve a thorough understanding of the protection necessary.Vital aspects such as the modern cartridge fuse, types of relays, and the role of the current transformer are covered and the widely used inverse definite-minimum time overcurrent relay, the theory of the Merz-Price protection system and the development of the high-impedance relay system are critically examined. This new edition has come about in response to the dramatic change from the use of electro-magnetic relays to electronic and micro-processor relays which figure in practically all new installations. Therefore, although the theory and usage are the same, the application can be much improved owing to the increased range and accuracy and the added facilities provided with the modern relays. This book reflects the change and explains the technical advantages.

The modernization of industrial power systems has been stifled by industry's acceptance of extremely outdated practices. Industry is hesitant to depart from power system design practices influenced by the economic concerns and technology of the post World War II period. In order to break free of outdated techniques and ensure product quality and continuity of operations, engineers must apply novel techniques to plan, design, and implement electrical power systems. Based on the author's 40 years of experience in Industry, Industrial Power Systems illustrates the importance of reliable power systems and provides engineers the tools to plan, design, and implement one. Using materials from IEEE courses developed for practicing engineers, the book covers relevant engineering features and modern design procedures, including power system studies, grounding, instrument transformers, and medium-voltage motors. The author provides a number of practical tables, including IEEE and European standards, and design principles for industrial applications. Long overdue, Industrial Power Systems provides power engineers with a blueprint for designing electrical systems that will provide continuously available electric power at the quality and quantity needed to maintain operations and standards of production.

The protection which is installed on an industrial power system is likely to be subjected to more difficult conditions than the protection on any other kind of power system. Starting with the many simple devices which are employed and covering the whole area of industrial power system protection, this book aims to help achieve a thorough understanding of the protection necessary. vital aspects such as the modern cartridge fuse, types of relays, and the role of the current transformer are covered and the widely used inverse definite-minimum time overcurrent relay, the theory of the Merz-Price protection system and the development of the high-impedance relay system are critically examined. This new edition has come about in response to the dramatic change from the use of electro-magnetic relays to electronic and micro-processor relays which figure in practically all new installations. Therefore, although the theory and usage are the same, the application can be much improved owing to the increased range and accuracy and the added facilities provided with the modern relays. This book reflects the change and explains the technical advantages.

This book will be useful for fresh graduate and post graduate Electrical engineering students & Working professional. This book convers basic Design concept with theory and practical project calculation related to Electrical Protection & it will be a very good handbook for fresh engineer & also experienced professionals. This book contain following Topics: WHY WE NEED PROTECTIVE APPARATUS BASIC FUNCTION OF PROTECTION EQUIPMENTS BASIC PROTECTION EQUIPMENTS POWER SYSTEM PROTECTION FAULTS, TYPES AND EFFECTS VARIOUS TYPES OF DISTRIBUTION SYSTEM TYPES OF VARIOUS FAULT AND THEIR EFFECT ACTIVE FAULTS PASSIVE FAULTS TYPES OF FAULTS ON A THREE-PHASE SYSTEM TRANSIENT AND PERMANENT FAULTS SYMMETRICAL AND ASYMMETRICAL FAULTS CALCULATION OF SHORT-CIRCUIT MVA FUSES HISTORICAL REWIREABLE TYPE CARTRIDGE TYPE FUSE OPERATING CHARACTERISTICS FUSE 'LET THROUGH' ENERGY SELECTION OF FUSE SPECIAL TYPES IS-LIMITER CIRCUIT BREAKERS INTRODUCTION PURPOSE OF CIRCUIT BREAKERS CURRENT UNDER FAULT CONDITION TYPES OF CIRCUIT BREAKERS TYPES OF MECHANISMS COMPARISON OF BREAKER TYPES RELAYS INTRODUCTION ELECTROMECHANICAL IDMTL RELAY CURRENT (PLUG) PICK-UP SETTING TIME MULTIPLIER SETTING BURDEN SETTING OF AN IDMT RELAY FACTORS INFLUENCING CHOICE OF PLUG SETTING MICROPROCESSOR VSELECTRONIC VS TRADITIONAL RELAY BACKGROUND HANDLING OF THE ENERGIZING SIGNAL THE MICROPROCESSOR CIRCUITS THE OUTPUT STAGES THE OUTPUT STAGES UNIVERSAL MICROPROCESSOR OVERCURRENT RELAY ACCURACY OF SETTINGS RESET TIMES STARTING CHARACTERISTICS DUAL SETTING BANKS BREAKER FAIL PROTECTION DIGITAL DISPLAY MEMORIZED FAULT INFORMATION AUXILIARY POWER REQUIREMENTS FLEXIBLE SELECTION OF OUTPUT TYPE TESTING OF STATIC RELAYS TYPE TESTS SELF-SUPERVISION THE FUTURE OF PROTECTION FOR DISTRIBUTION SYSTEMS IED FUNCTIONS OF AN IED SUBSTATION AUTOMATION EXISTING SUBSTATIONS COMMUNICATION CAPABILITY COORDINATION BY TIME GRADING PROTECTION FOR MEDIUM- AND LOW-VOLTAGE NETWORKS INTRODUCTION WHY IDMT? TYPES OF RELAYS NETWORK APPLICATION SENSITIVE EARTH FAULT PROTECTION CONCLUSION LOW-VOLTAGE NETWORKS AIR CIRCUIT BREAKERS MOULDED CASE CIRCUIT BREAKERS CURRENT-LIMITING MCCBS APPLICATION AND SELECTIVE COORDINATION AIR CIRCUIT BREAKER EARTH LEAKAGE PROTECTION RELAY SETTING CALCULATION FOR LV DISTRIBUTION SYSTEM UNIT PROTECTION PROTECTIVE RELAY SYSTEMS MAIN OR UNIT PROTECTIONS BACK-UP PROTECTION DIFFERENTIAL PROTECTION BALANCED CIRCULATING CURRENT SYSTEM BALANCED VOLTAGE SYSTEM BIAS MACHINE DIFFERENTIAL PROTECTION TRANSFORMER DIFFERENTIAL PROTECTION SWITCHGEAR DIFFERENTIAL PROTECTION FEEDER PILOT-WIRE PROTECTION RECOMMENDED UNIT PROTECTION SYSTEMSE TAKEN TO CLEAR FAULTS ADVANTAGES OF UNIT PROTECTION FEEDER PROTECTION: CABLE FEEDERS AND OVERHEAD LINES DISTANCE PROTECTION TRIPPING CHARACTERISTICS APPLICATION ONTO A POWER LINE TRANSFORMER PROTECTION WINDING POLARITY TRANSFORMER CONNECTIONS TRANSFORMER MAGNETIZING CHARACTERISTICS IN-RUSH CURRENT NEUTRAL EARTHING MISMATCH OF CURRENT TRANSFORMERS TYPES OF FAULTS EARTH FAULT DIFFERENTIAL PROTECTION RESTRICTED EARTH FAULT HV OVERCURRENT BUCHHOLZ PROTECTION OVERLOADINGSIMILAR TOPICS FOR SWITCHGEAR, MOTOR, GENERATOR PROTECTIONS

The protection which is installed on an industrial power system is likely to be subjected to more difficult conditions than the protection on any other kind of power system. Starting with the many simple devices which are employed and covering the whole area of industrial power system protection, this book aims to help achieve a thorough understanding of the protection necessary. vital aspects such as the modern cartridge fuse, types of relays, and the role of the current transformer are covered and the widely used inverse definite-minimum time overcurrent relay, the theory of the Merz-Price protection system and the development of the high-impedance relay system are critically examined. This new edition has come about in response to the dramatic change from the use of electro-magnetic relays to electronic and micro-processor relays which figure in practically all new installations. Therefore, although the theory and usage are the same, the application can be much improved owing to the increased range and accuracy and the added facilities provided with the modern relays. This book reflects the change and explains the technical advantages.

Presents the most relevant concepts and techniques in power system protection. This second edition offers a new chapter on circuit breakers to further strengthen the text and meet the curriculum needs of universities. It includes around 300 well-annotated figures and numerous tables.