Reconstruction of the electrical part of the Diploma of JSC "Milk"

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Uploaded: 13.06.2011
Content: d0007.rar (3681,67 kB)

Description

Subject: "Reconstruction of the electrical part of the JSC" Milk "with the development of the process control scheme of water treatment"

Contents
Introduction
1 Analysis of production and economic activity of the enterprise
JSC "Milk" 10
2 Justification theme works with the analysis of the state of the electrical
of the 19 dairy
2.1 Analysis of the electrical part of the 19 dairy
2.2 Rationale for the reconstruction of the electrical
of the 20 dairy
3 Reconstruction of the electrical part of the plant 22
3.1 Choice of dairy processing equipment 22
3.2 Calculation of production and auxiliary lighting
premises and territory 24
3.2.1 Calculation of lighting production and support facilities 24
3.2.2 Calculation of the territory lighting 29
3.3 Calculation of ventilation of production premises with a choice
Equipment 31
3.4 Calculation of electrical loads with a choice of power
power sources 35
3.5 Development of the scheme of electric networks 0,4 kV with their calculation 47
3.5.1 The definition section of wires of 0.4 kV 47
3.5.2 Loss of voltage networks 0,4 kW 52
3.6 Selection of control and protection devices with the calculation of internal
wirings and test devices against short
the reliability of circuit operation 55
3.6.1 Selection of switching devices electrical loads 56
3.6.2 Checking the reliability of circuit breakers
triggering short circuits in 0.4 kV lines 60

Additional information

4 Development of the scheme of technological process of water treatment 66
4.1 Review of the literature on how to prepare before the water
Using 66
4.1.1 Literature Review 66
4.1.2 Methods for the preparation of water before use 69
4.2 Development of technological scheme of water preparation
choice of equipment 76
4.2.1 Calculation of the power of the heating system 78
4.2.2 The hydraulic calculation of the heating system 81
4.3 Development of the scheme of automatic control technology
process water treatment 85
4.4 Selecting protective devices and control of electrical equipment
water treatment system 85
4.5 Calculation of internal wirings 87
4.6 Operation of Electrical water treatment system 88
5 Cost-effectiveness of the implementation of the control circuit
process water treatment 90
5.1 Calculation of the costs of implementing the control circuit 90
5.2 Determination of economic efficiency 92
6 Safety 94
6.1 Operational Safety Electrical
System 94
6.2 The rules of electrical safety devices 96
6.3 Calculation of electrical grounding devices 101
Conclusion 105
References

Drawings made in Microsoft Visio:

1. Analysis of production and economic activity of JSC "Milk"
2. The general plan of the territory of JSC "Milk"
3. Schematic single-line circuit diagram of electric power supply of "Milk"
4. Plan area with the application of water treatment and elekrooborudovaniya elektrous
5. The scheme of automatic control of water treatment plants
6. Plan the grounding device and potential equalization system boiler
7. Plan the grounding device and potential equalization system boiler
8. The rules of acquisition of electrical protective equipment
9. The scheme of automatic control of water treatment plants
10. Functional diagram of water treatment plants

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