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1 online resource (xvi, 621 pages) : illustrations
Both mining and electrical engineers need to bear in mind the following specific requirements of electrical applications in mining. 1) Economy of electrical plant and equipment in relation to the cost price of the extracted mineral ores, governed by the specific exploitation conditions, 2) Reliability of electrical plant and equipment for extractive operations, operational efficiency, and plant and personnel safety. 3) Special safeguards to counteract the additional hazards posed by the use of electric power, and by electrical phenomena in general. The book has been written along these lines, dealing with those topics which highlight the aspects of electrical engineering of relevance for mining engineers and aspects of mining operations that electrical engineers need, to meet the above-mentioned basic requirements governing the introduction and use of electrical plants and systems in mines. This book is intended as a text book and will be of use to students, and colleges as well as to mining and electrical engineers.
Front Cover; Electrotechnology in Mining; Copyright Page; Dedication; Preface; Introductory Note; Table of Contents; Chapter 1. Electrical Equipment and Power Supply Systems for Mines; 1.1 Mine power supply; 1.2 Reliability of supply; 1.3 Voltage selection; 1.4 High-voltage pit plants; 1.5 Pit substations; 1.6 Low-voltage switching and distribution systems; 1.7 Reactive power compensation; 1.8 Trolley system; 1.9 Mine lighting; 1.10 Signalling and communications; Chapter 2. Electric Motor Drives; 2.1 Electromechanical characteristics.
2.2 Types of electric motor drives with respect to electric motor types2.3 Regulated electric motor drives; 2.4 Control and automatic control of mining operations; Chapter 3. Electric Power Consumption in Main Parts of the Mine; 3.1 General; 3.2 Hoists; 3.3 Main ventilation fans; 3.4 Compressors; 3.5 Drainage; 3.6 Car transportation (trolley network); 3.7. Continuous transportation; 3.8 District consumption; 3.9 Power consumption of an underground mining operation; 3.10 Power consumption of an opencast mine; Chapter 4. Protection from Network-Related and Other Electrical Phenomena in Mines.
4.1 General4.2 Current overload; 4.3 Earth fault and hazardous fault voltage protection; 4.4 Short circuits; 4.5 Voltage drop; 4.6 Atmospheric discharge; 4.7 Electrostatic charges occurring in underground mining operations; 4.8 Stray currents in underground mines; Chapter 5. Explosion-protected Electrical Apparatus for Mines; 5.1 Explosive and flammable mixtures; 5.2 Physical characteristics of explosions; 5.3 Classification of flammable gases, liquids and dusts, and electrical equipment; 5.4 Classification of areas endangered by explosive atmospheres.
5.5 Explosion-protected design of electrical equipment5.6 Identification of electrical apparatus protected against explosion; 5.7 Certification of electrical equipment protected against explosion; Chapter 6. Special Electrical Mine Equipment; 6.1 Mine control and monitoring devices; 6.2 Network fault selection system; 6.3 Mine switching and distribution installations; Chapter 7. Mine Cables; 7.1 Main features of mine cables; 7.2 Particular cable requirements for use in mines; 7.3 Standard design cables suitable for mine use; 7.4 Standard flexible cables for mine applications.
7.5 Special cables for low-voltage gassy mines networks7.6 Special high-voltage cables for gassy mines; 7.7 Opencast mine cables; 7.8 Signal and telephone cables; 7.9 Cable-laying in underground mines; 7.10 Cable faults and consequences; 7.11 Monitoring of the integrity of earthing through flexible cables and cable damage; References; Subject Index.
Nenad Marinović ; translated from the Yugoslav by Vladimir Ivir and Janko Paravić.
Translation of: Rudarska elektrotehnika.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212 MiAaHDL
digitized 2011 HathiTrust Digital Library committed to preserve pda MiAaHDL
Includes bibliographical references (pages 519-611) and index.
Advances in mining science and technology ; 6