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Forward and reverse motor control ladder diagram with start and stop push buttons, interlocking contacts, and motor rotation directions shown.
Forward and reverse motor control ladder diagram with start and stop push buttons, interlocking contacts, and motor rotation directions shown.

Engineering Drawings for Electrical Circuits

The THORS Engineering Drawings for Electrical Circuits course is designed to provide learners with a comprehensive understanding of the drawing template, the different types of electrical diagrams, and the various symbols used in electrical drawings along with case study examples. Ready to take the next step? Explore the course details and see everything we’ve packed into this program!

Learning Hours: 2.5

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Course Description

The THORS Engineering Drawings for Electrical Circuits course introduces the learner to the drawing representation, the types of electrical diagrams, and the symbols used. Presented in THORS’ highly visual and interactive learning format, this course will equip the learner with a foundational knowledge to interpret electrical drawings through case study examples.

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Who will benefit from this engineering drawing course?

Quality, manufacturing, engineering, design, testing, purchasing, and sales functions at organizations that require electrical circuit manufacturing.

Course Classification

This manufacturing course by THORS eLearning Solutions covers identification of key terms, understanding of key concepts, and application of the covered topics.

*THORS uses the Bloom’s Taxonomy Methodology for our course development.

Certificate Awarded for Engineering Drawing for Electrical Circuits

Example of certificate awarded upon successful completion of the course.

*upon successful completion

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Learning Objectives

  1. Develop an understanding of the drawing representation in electrical drawings.
  2. Identify the different types of electrical diagrams.
  3. Understand basic electrical circuit symbols.
  4. Analyze the various electrical circuit symbols used in electrical diagrams.
  5. Identify standards and conventions used in engineering drawings.
Power circuit schematic of an MCC showing three-phase supply, isolator, contactor, protection devices, and a 22 kW AC motor.
Engineering Drawings for Electrical Circuits course

Table of Contents

  1. Drawing Representation
    1. Drawing Template
      1. Title Block
      2. Legend Block
      3. Bill of Materials (BOM) Block
      4. Drawing Notes Block
      5. Drawing Zone
      6. Grid Framework
    2. Electrical Diagrams
      1. Power System Diagrams
        1. Single-Line Diagram (SLD)
        2. Three-Line Diagram
      2. Circuit Construction Diagrams
      3. Control System Diagrams
        1. Functional Block Diagram (FBD)
        2. Ladder Diagram
  2. Symbols
    1. Power Supply Devices
    2. Control Devices
      1. Switches
      2. Contactors
      3. Isolators
    3. Protection Devices
      1. Lightning Arresters
      2. Fuses
      3. Relays with Circuit Breakers
    4. Measurement Devices
    5. Power Modification Devices
    6. Power Conversion Devices
    7. Indication Devices
    8. Wires
      1. Lines
      2. Connections
  3. Case Study Examples
    1. Case Study 1: Ladder Diagram
      1. Reading the Ladder Diagram
      2. Interpreting the Ladder Diagram
    2. Case Study 2: Schematic Diagram
      1. Power Circuit
      2. Control Circuit

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