Practical Power Plant Engineering

2Plant Key One‐Line Diagram

CHAPTER MENU

• 2.1 One‐Line Diagrams
  • 2.1.1 What Is the One‐Line Diagram, or Single‐Line Diagram?
• 2.2 The Electrical Project
• 2.3 Site Conditions
  • 2.3.1 Source of Power
  • 2.3.2 Ambient Derating Factors
  • 2.3.3 Reliability Criteria
• 2.4 Connection to Power Utility
  • 2.4.1 Source Impedance
  • 2.4.2 Line Conductor
  • 2.4.3 HV Circuit Breaker Fault Interrupting
  • 2.4.4 Double or Single Incomer Connection
  • 2.4.5 Utility Generating Capacity
  • 2.4.6 Firm Capacity
  • 2.4.7 Line Protection
  • 2.4.8 Lightning
• 2.5 Main Plant Substation
• 2.6 Load Site Placement
  • 2.6.1 Crushing
  • 2.6.2 Grinding and Conveying
• 2.7 The Key One‐Line Diagram
  • 2.7.1 Load Investigation
  • 2.7.2 Connected Load – Operating Load
  • 2.7.3 Voltage Level Selection
  • 2.7.4 Switchgear Breaker Ratings
  • 2.7.5 Single Incomer Substation for a Small Plant
  • 2.7.6 13.8 or 33 kV Switchgear for a Larger Plant
  • 2.7.7 Transformer Connections: Cable, Cable Bus, or Bus Duct?
  • 2.7.8 Medium Voltage Switchgear and Controllers (4.16 kV)
  • 2.7.9 Low Voltage Service Voltage
  • 2.7.10 Bus Tie Breaker Switching
  • 2.7.11 Plant Transformation
  • 2.7.12 Voltage Regulation
  • 2.7.13 Overhead Distribution Lines
• 2.8 Transformer System Grounding
  • 2.8.1 Transmission Level
  • 2.8.2 MV Systems
  • 2.8.3 LV Systems
  • 2.8.4 Generator Neutrals
• 2.9 Transformer Winding Configurations and Phasing
• 2.10 Standby Power
• 2.11 Insulation Coordination
  • 2.11.1 Substation Shielding
• 2.12 Plant Control System
• 2.13 Fire Protection
• Reference

2.1 One‐Line Diagrams

Designing a Key one‐line diagram is the most ...