Preface......................... 7
Chapter One. ORGANIZATION OF SCHEDULED MAINTENANCE AND REPAIR........... 9
1-1. Role and Importance of Maintenance and Repair ... 9
1-2. Organization of Maintenance and Repair...... 10
1-3. Techniques and Procedures ............ 11
1-4. Mechanization of Repair ............. 17
Review Questions.................... 21
Chapter Two. REPAIR AND MAINTENANCE OF SWITCH-GEAR AND TRANSFORMER SUBSTATIONS 22
2-1. Circuit Breakers and Their Operating Mechanisms 24
2-2. Isolating (Disconnecting) Switches and H.V. Fuses 45
2-3. Reactors..................... 54
2-4. Busbars ..................... 55
Review Questions................... 60
Chapter Three. REPAIR OF CIRCUIT-OPENING DEVICES 61
3-1. Knife-Blade Switches............... 61
3-2. Packet Switches ................. 65
3-3. Fuses ...................... 66
3-4. Contactors and Magnetic Starters......... 70
3-5. Automatic Air-Break Circuit Breakers....... 80
Review Questions................... 82
Chapter Four. MAINTENANCE AND REPAIR OF ELECTRIC NETWORKS............ 84
4-1. Electrical Conducting Wires and Cables...... 84
4-2. Maintenance and Repair of Electric Circuits .... 90
4-3. Cable Joints and Terminal Connections....... 100
Review Questions................... 106
Chapter Five. REPAIR OF TRANSFORMERS...... 107
5-1. Purpose and Construction of Transformers..... 107
5-2. Inspection and Repair of a Transformer ....... 114
5-3. Repair and Fabrication of Insulation and Coils . . . 124
5-4. Assembly of a Reconditioned Transformer...... 134
5-5. Construction and Repair of Dry and Askarel-Immersed
Power Transformers............... 138
5-6. Construction and Repair of Welding Transformers . . . 139 5-7. Construction and Repair of Dry Low-Capacity Step-Down Transformers................ 142
5-8. Construction and Repair of Instrument Transformers 144
Review Questions................... 150
Chapter Six. REPAIR OF ELECTRIC MACHINES ... 151
6-1. Construction and Troubles of Electric Machines 151 6-2. Inspection and Preparation of an Electric Machine for
Repair...................... 154
6-3. Repair and Making of Windings for Induction Motors 159
6-4. Repair and Making of New Windings for D. C. Machines 167
рГ6-5. Repair of Slip Rings and Commutators...... 173
6-6. Repair of the Short-Circuiting Mechanism and Brushgear 176
6-7. Application of Binding Wire and Balancing of Rotors 177
' 6-8. Impregnation and Drying of Windings...... 181
6-9. Repair of End Shields, Shafts and Bearings .... 183
6-10. Core Repair .................. 186
6-11. Repair of Induction Motors in Explosion-Proof and
Other Special Enclosures............. 189
6-12. Assembly, Checks and Tests........... 191
Review Questions................... 194
Chapter Seven. MATERIALS USED IN THE REPAIR OF
ELECTRIC EQUIPMENT ........ 195
7-1. Conductor Materials ............... 195
7-2. Insulating Materials ............... 196
7-3. Transformer Oil.................. 200
7-4. Varnishes, Enamels, Compounds, and Resins . . . 20(1
7-5. Electrical-Sheet Steel............... 204
7-6. Various Materials ................ 204
Review Questions .................. 207
Chapter Eight. ACCIDENT PREVENTION........ 208
8-1. General Requirements and Objectives....... 208
8-2. Electrical Safety Measures............. 209
8-3. Safety Measures in Benchwork........... 209
8-4. Safety Measures in Repair Areas.......... 210
8-5. Safety in Hoisting1 and Conveying......... 212
8-6. Fire Precautions.................. 213
Review Questions................... 214
Index.......................... 215
Preface
Electrical equipment does many jobs in the manufacturing and process industries, agriculture, transport, and civil engineering. Obviously, its reliability, durability and performance cannot but have a direct bearing on activity in any of these fields, and a good deal depends on attending and maintenance personnel.
Experience shows that well-organized scheduled maintenance goes a long way towards securing a long and trouble-free service life for electrical equipment.
This book outlines in brief the organization of repair and maintenance of electrical equipment as it is practised in the Soviet Union. The subject-matter will lay for the reader a foundation on which he may build a substantial body of knowledge from reference to other publications on the design, manufacture, maintenance and repair of electrical equipment.
G. Vartanov, V. Verner
Цена: 150руб.
