Electrical Fundamentals 7103 Power and Power Factor

7103 Power and Power Factor

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  • Course Delivery: On Demand
  • Credit Hours: 2
  • Credit Type: Technical, Health and Safety, Engineering

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Description

While it is true that the larger the impedance, the larger the regulation for any given amount of load, what is meant by saying that a transformer is perfect or ideal? Why does the inductive reactance of the transformer occur? And what happens to the secondary voltage if the load is removed?

In this part, you will calculate impedance and voltage drop across the various elements of a circuit; study the effects a change in the power factor can have on the active, reactive, and apparent power demands of a load; describe what happens when a capacitor is placed across the terminals of a motor, and discuss how to increase load transfer along a line.

NERC CEH: 2, OPS Topics 2, NERC Standards 0, Simulation 0, EO Credit - No, PE Hours 2

 

Course Objectives

Terminal Objective: The trainee shall describe the impedance triangle.
- Enabling Objective: The trainee shall caluculate impedance.
- Enabling Objective: The trainee shall intrepret vector diagrams.
- Enabling Objective: The trainee shall explain power factor.

Terminal Objective: The trainee shall describe voltage drop caused by resistance and inductance in conductors.
- Enabling Objective: The trainee shall cite a specific example of a voltage drop.
- Enabling Objective: The trainee shall determine source voltage requirements.
- Enabling Objective: The trainee shall define power factor and voltage drop.

Terminal Objective: The trainee shall describe common transformer applications.
- Enabling Objective: The trainee shall describe the fundamental principles of operation of transformers.
- Enabling Objective: The trainee shall explain the function of an autotransformer.
- Enabling Objective: The trainee shall explain the function of instrument transformers.

Terminal Objective: The trainee shall describe transformer impedance and regulation.
- Enabling Objective: The trainee shall describe impedance calculation.
- Enabling Objective: The trainee shall describe the voltage drop across a transformer as it is loaded (transformer regulation).
- Enabling Objective: The trainee shall describe how system voltage can be controlled using transformers equipped with on-load tap changers.

 

Topics Covered

Lesson 1: The Impedance Triangle

- Introduction
- Calculating Impedance
- Vector Diagrams
- Power Triangle
- Power Factor

Lesson 2: Voltage Drop

- Introduction
- Voltage Drop -- Example
- Determining Source Voltage Requirements
- Power Factor and Voltage Drop

Lesson 3: Introduction to Transformers

- Principles of Operation
- The Ideal Transformer
- The Autotransformer
- Instrument Transformers

Lesson 4: Transformer Impedance and Regulation

- Introduction
- Impedance Calculations
- Transformer Regulation
- Voltage Regulation Techniques

 

Regulatory Information

7103 Power and Power Factor - Registered Continuing Education Program RCEP

  • Name:
  • Registered Continuing Education Program RCEP
  • Phone:
  • 202-682-4338
  • Fax:
  • Website URL:
  • https://www.rcep.net/
  • Email Address:
  • [email protected]
  • Address:
  • American Council of Engineering Companies 1015 15th Street, NW.
  • City:
  • DC
  • State:
  • WA
  • Zip:
  • 20005-2605
 

End of Course Instructions

Congratulations on successfully completing your course! Please take a moment to fill out the NERC Survey below.

 

Exams

After completing this course the final exam must be passed with a 70% or higher in order to receive certificate of completion.

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