OPS is pleased to have hosted

Basic Principles of Transformer Design Seminar


Basic Principles of Transformer Design:  Derivation & Application of the Equations Used in the Transformer Design Process.

Basic Principles of Transformer Design Seminar
Designing Transformers with hand calculations!
Basic Princples of Transformer Design Seminar
Transformer Design hand calculations-comparing results with software
Basic Principles of Transformer Design Seminar
Basic Principles of Transformer Design Seminar – OPS – CWIEME

After attending this seminar, you will feel confident to design without any application tools or software programs.  This seminar is intended for technical personnel who want to learn and review the basic principles of transformer design from initial to end stages of the design.  We will be providing design examples and concepts of transformer design using hand calculations. 

Topics of discussion included:

Basic Magnetic Relationships
  A. Magnetic Flux
  B. Field Intensity
  C. Permeability
  D. Induced Voltages 

Derivation of Basic Design Expressions
  A. Volts Per Turn
  B. Power 
  C. Ampere-Turns 

Equivalent Circuit
  A. Vector Diagrams of Voltage 
        1. Primary Voltages
        2. Secondary Voltages 

Core Considerations
  A. Construction
        1. Tool Made Laminations
        2. Wound Cores
              a. Cut C Cores
              b. Distributed Gap Cores
              c. Toroids
        3. Lay-up Cores (Strip)
  B. Materials 
        1. Grades
        2. Gauges 
        3. Alloys
  C. Core-Coil Construction
        1. Simple
        2. Core
        3. Shell
        4. Three-Phase 

Conductor Type
  A. Shapes
        1. Round
        2. Square
        3. Rectangular
        4. Foil or Strip
  B. Materials 
        1. Copper
        2. Aluminum
  C. Relative Properties
        1. Conductivity
        2. Weight
        3. Cost
  D. Conductor Insulation
        1. Film
        2. Wrap
        3. Combinations 

Size Relationship
  A. Frequency
  B. Temperature Class
  C. Regulation
  D. Voltage Level
  E. Construction 

Design Calculations
  A. Size
        1. Power Rating
        2. Turns
        3. Wire Size
  B. Coil Design
        1. Coil Length
        2. Winding Length
        3. Turns per Layer
        4. Number of Layers
        5. Winding Build
        6. Mean Turn
        7. Wire Length
        8. D.C. Resistance
        9. Wire Weight
   C. Core Characteristics
        1. Core Weight
        2. Core Losses
              a. Watts
              b. Excitation 
                 (Apparent Losses) VA
   D. Transformer Characteristics
        1. Conductor Losses
              a. Resistive Losses
              b. Eddy Losses
              c. Total Conductor Losses
        2. Voltage Regulation
              a. No-Load Voltage
              b. Percent Regulation
        3. Efficiency
        4. Temperature Rise
   E. Convection and Radiation 
   F. Transformer Cooling Surfaces 

Effects of Coil Cooling Ducts
   A. Effects on Temperature Rise
   B. Effects on Impedance 

Who should attend?
  • Engineers looking to familiarize designing transformers by using hand calculations
  • New OPS software users and engineers who will be using OPS in the future

For inquiries, please email [email protected] or call 440-238-0700.  We are looking forward to seeing you at the event! 


OPS Team