Distribution Systems Training

301-02 Electrical Distribution System Fundamentals

When you complete this lesson, you will be able to recognize and understand the process and purpose of designing an electrical power distribution system.

  • Identify the most common sources of electric power generation
  • Identify the purpose of electrical distribution system design
  • Identify the key principles of electrical distribution system design
  • Identify the elements comprising a load area
  • Identify the technologies considered in electrical distribution system design
  • Identify the goals of electrical distribution system design
  • Identify the organizations regulating the standards for electrical distribution systems
  • Identify the most common voltage systems
  • Recognize common Electrical Distribution System types and common components

301-03 Primary and Secondary Distribution Systems

When you complete this lesson, you will be able to describe primary and secondary distribution systems, including common system designs. In addition, you will be able to discuss the benefits of these network systems and have the knowledge to create a riser diagram.

  • Recall the history of network distribution systems
  • Recognize the difference between two and one breaker system designs
  • Identify the function of a primary distribution system
  • Identify the function of a secondary distribution system
  • Recognize the benefits related to network distribution systems
  • Identify the common types of system design
  • Identify the stages of system design

301-04 Distribution System Components and Application

When you complete this lesson, you will be able to explain the common components of a distribution system. In addition, you will be able to describe the role of the substation and its common components.

  • Recognize distribution system components
  • Identify the common configuration, function, and elements of a simple distribution system
  • Identify primary supply line applications
  • Recognize the relationship between transmission, sub-transmission, and primary distribution
  • Identify the role of the substation
  • Identify the considerations of branch lateral design
  • Recognize the differences in overhead and underground component configuration

301-05 Characteristics of Distribution Switchgear

When you complete this lesson, you will be able to identify various types of electrical switchgear encountered in common distribution systems. In addition, you will understand how to effectively make modifications to system designs by combining and replacing switchgear applications.

  • Explain the impact of switching operations in distribution system safety
  • Describe the difference in fault interrupting and non-fault interrupting equipment
  • Identify the common types of switchgear
  • Describe the function of disconnect equipment
  • Identify prime locations for switchgear placement
  • Explain the difference between solid and fused disconnects
  • Apply methods to reduce current flow and avoid disconnect opening
  • Explain the purpose of arcing horns
  • Demonstrate the use of non-load break elbow connectors
  • Demonstrate the use of load break capable elbow connectors
  • Explain the purpose of auto-switching arrangements
  • Complete a P&ID that entails auto-switching devices
  • Explain the value of sectionalizer use

301-06 Load Characteristics and Management

When you complete this lesson, you will be able to discuss characteristics common to load area demand. In addition, you will understand how to utilize load and load-duration curves to assist in balancing of interchange scheduling and conducting time error correction.

  • Identify the common terms associated with load characteristics
  • List the categories of load demand areas
  • Explain the difference between kVA and kW
  • Identify the characteristics of a load demand area
  • Explain how different load demand areas affect the total system
  • Explain the purpose of a load curve
  • Draw and label a load curve
  • Explain the purpose of a load-duration curve
  • Draw and label a load-duration curve
  • Explain the function of the load and load-duration curves
  • List the four contributing factors of demand deviation
  • Conduct a load forecasting exercise
  • Define power factor correction
  • List the formulas used to calculate load growth
  • Demonstrate the ability to complete a load curve model
  • Demonstrate the ability to assist with a power factor correction

301-07 Principles of Revenue Metering

When you complete this lesson, you will be able to understand the principles of revenue metering and how they affect the provider and customer relationship.

  • Define common terminology related to utility revenue metering
  • Identify general requirements regarding reliability, accuracy, and documentation to ensure accurate revenue metering
  • Recognize detailed requirements regarding meters, instrument transformers, and data transmission subsystems
  • Identify the responsibilities for installation, calibration, and maintenance of revenue meters
  • Identify revenue data and meter authority requirements

301-08 Single and Poly-Phase Metering

When you complete this lesson, you will be able to discuss single and poly-phase specific meters including meter constants. In addition, you will be able to describe the process for meter reading, testing, and calibration.

  • State the purpose of the watt-hour meter
  • List the units of measurement used in revenue metering
  • Identify the electrical and mechanical principles of meter operation
  • Explain meter constants and their purpose
  • State the differences in single and three phase construction
  • Explain Blondel’s Theorem
  • Explain the purpose of calibrating single and poly-phase meters
  • Explain the difference between as-found and as-left information
  • Demonstrate inspection and maintenance procedures for single-phase and poly-phase meters
  • Explain the process of calibrating a single phase meter
  • Explain the process of calibrating a poly-phase meter
  • Identify the function of a solid-state digital meter
  • Explain the purpose of the rotating standard
  • Locate requirements pertaining to use of a rotating standard
  • Perform a digital meter calculation
  • Demonstrate applications for load profile data