Power supply and electrical equipment of JSC “Ural Asb

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Uploaded: 16.06.2016
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Description

Theme of qualifying work: Supply and electric equipment of the technological complex of the Central pit mining and processing plant "Uralasbest".
In the General part of the final qualifying work considers General information about the field, current state and technology of mining of the Central pit, given existing equipment and the selection of equipment, which will be considered in more detail in the special part, on the basis of the calculated data.
In the special part of the graduation qualification work is further discussed in the electricity career, is the calculation of the loads and selection of equipment; the protection against atmospheric overvoltage.
The work includes: the task for final qualifying work, abstract, contents, introduction, settlement and explanatory note of 2 parts, conclusion, list of references and the graphical part consisting of 9 drawings.

Additional information


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The contents

Introduction....................................................................................7
1.The General part...........................................................................10
1.1. Technology mining.......................................................11
1.1.1. A brief geological description of the Deposit.....12
1.1.2. The volume and dimensions of the field......................................13
1.1.3.The ore reserves and the volume of overburden in open-pit outlines..................13
1.1.4. Productivity and service life.......................14
1.1.5. Access to the Deposit.................................................15
1.1.6. Development system........................................................17
1.1.7. Preparation of mining operations for excavation...................................18
1.1.8. Performance and the Park of drilling machine tools...........................20
1.1.9. Performance and Park mining excavators............22
1.1.10. Dumping operations.............................................................23
1.2. Fixed installation.......................................................25
1.2.1.Career permanent installation.................................... 26
1.2.2. Pump selection...................................................................26
1.2.3. Piping calculation.......................................................27
1.2.4. An operating mode of the pump......................................................31
1.2.5. Check the vacuum height suction.....................32
1.2.6. The choice of a drive motor. Determination of energy consumption.......32
1.2.7. Efficiency bilge fitting.............................................. 33
1.2.8. The capacity of the sump................................................. 34
2. Special part.....................................................................35
2.1. The Electromechanical equipment and supply..............36
2.1.1. External power supply.................................................................36
2.1.1.1. Consumers of electric energy....................................36
2.1.1.2. The choice of the number and capacity of transformers GPP...................39
2.1.1.3. Calculations of power lines with voltage above 1000V..............41
2.1.1.4. Calculation of short-circuit currents............................................................43
2.1.1.5. The choice of the main equipment GPP.................................46
2.1.1.6. Power supply schematic diagram quarry..................50
2.1.1.7. Protection and automation equipment for GPP...............................51
2.1.1.8. Organization of safe maintenance of electric. substation equipment..................................................................................55










2.1.2. The Electromechanical equipment and supply section of the Central mining shop............................................................57
2.1.2.1.Techno-economic comparison of two schemes of power supply.........................................................................57
2.1.2.2. Calculation and sizing of wires VL..................................62
2.1.2.3. Calculation of short-circuit currents at the end of the air line 65...
2.1.2.4. Choice Priklyucheniya points..............................................68
2.1.2.5. The design of the lighting system.................................72
2.1.2.6. Calculation of the protective earth ................. ........................74
2.1.2.7 Technical and economic indicators of the electricity career........................................................................................76
2.2.8. Calculation of short circuit currents.......................................70
2.2.9. The choice of protection.................................................................70
2.2.10. Calculation of lighting....................................

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