final project report

final project report - INDEX 1 DEMAND CALCULATIONS...

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Unformatted text preview: INDEX 1. DEMAND CALCULATIONS ………………………………………………….. 4 2. SUBSTATION LAYOUT…………………………………………………... 7 2.1 Substation Layouts ……………………………………………………… 7 2.1.1 Simple Radial System 7 2.1.2 Expanded Radial System 7 2.1.3 Primary Selective System 8 2.1.4 Secondary Selective System 9 2.2 Facility Substation Layout 9 3. TRANSFORMERS 11 3.1 Types of Transformers 11 3.2 Classification of Transformer 13 3.2.1 Selection of Transformers 13 3.2.2 Factors of Consideration 13 3.3 Electrical Design 14 3.3.1 Power and Voltage Rating 14 3.3.2 Temperature Rise 15 3.3.3 Cooling 15 3.3.4 BIL and Impedance 16 3.3.5 Voltage Taps 16 3.3.6 Connection 17 3.3.7 Accessories 18 3.3.8 Overloading of Transformers 18 3.4 Availability and Cost Analysis of Transformers 3.4.1 Invariants that are recommended 4. UNDERGROUND CABLE SELECTION 1 5. PROTECTIVE DEVICES AND THEIR COORDINATION FOR PLANT’S ELECTRICAL SYSTEM 5.1 Introduction 5.2 Why Protection? 5.3 Devices Commonly Used 5.4 Fuses 5.4.1 Fuse for lighting and heating loads 5.4.2 Fuse for motors, furnaces and machines 5.4.3 Fuses for transformer and feeder protection 5.5 Relays 5.5.1 Coordination between the relay and fuse 5.6 Switchgear 5.6.1 34.5KV Switchgear 5.6.2 Features of 34.5KV Power Con switchgear 5.6.3 13.8KV switchgear 5.6.4 Features of 13.8KV switchgear 2 ABSTRACT This project is a proposal by SCR consultants for the industrial power distribution design for the facility site of JJ ROLLERS located at Tonawanda, NY. Power distribution layout designs are extremely important as they have to be simple, cost efficient, reliable and dependable. Keeping this in mind SCR consultants have taken every effort to present a simple, cost efficient design of the power distribution in the plant ensuring safety of equipment and personnel. All designs presented follow standard IEEE recommended practices and standards. Requirement such as continuous production capability and power factor correction as requested by JJ Rollers have been kept in mind. An estimated cost analysis is also included so that the client is aware of all costs that they would need to incur in following this particular design. 3 CHAPTER 1 Demand Calculations Figure 1.1 – Power Calculations Building 7 Figure 1.2 – Lighting Load Calculations 4 Figure 1.3 – Building Demand with Building 7 Calculations The building groups have been labeled as shown in figure 1.4 5 Figure 1.4 – Building Organization The building loads are added to the lighting loads to get the total building loads as seen in figure 1.5. Figure 1.5 – Total Building Demand 6 Figure 6 shows the total building demand organized by building group....
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This note was uploaded on 02/16/2011 for the course EE 472 taught by Professor Dr.ilyagrinberg during the Spring '10 term at SUNY Buffalo.

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final project report - INDEX 1 DEMAND CALCULATIONS...

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