Types of Transformers and Transformers Symbols

A transformer is a passive electrical device or a static device that transfers electrical energy from one electrical circuit to another, or multiple courses. The transformer does this by linking two or more electrical circuits using a standard oscillating magnetic circuit produced by the transformer itself.

Generally, the electrical transformer is a component consisting of two or more coils coupled by magnetic induction. It is used to transfer electrical energy, and to increase or decrease the voltage in an AC circuit, keeping the frequency fixed.

The exceptional auto-transformer has only one winding.

Different types of Transformers Symbols

The types of different transformers

• 1             Power transformer

  1.1         Laminated core

  1.2         Toroidal

  1.3         Autotransformer

  1.4         Variable autotransformer

  1.5         Induction regulator

  1.6         Poly phase transformer

  1.7         Grounding transformer

  1.8         Phase-shifting transformer

  1.9         Variable-frequency transformer

  1.10       Leakage or stray field transformer

  1.11       Resonant transformer

  1.12       Constant voltage transformer

  1.13       Ferrite core

  1.14       Planar transformer

  1.15       Oil-cooled transformer

  1.16       Cast resin transformer

  1.17       Isolating transformer

  1.18       Solid-state transformer

   

  2             Instrument transformer

  2.1         Current transformer

  2.2         Voltage transformer or potential transformer

  2.3         Combined instrument transformer

   

  3             Pulse transformer

   

  4             RF transformer

  4.1         Air-core transformer

  4.2         Ferrite-core transformer

  4.3         Transmission-line transformer

  4.4         Balun

   

  5             IF transformer

   

  6             Audio transformer

  6.1         Loudspeaker transformer

  6.2         Output transformer

  6.3         Small-signal transformer

  6.4         Interstage and coupling transformer

  
  

  7             Other types

  7.1         Transactor

  7.2         Hedgehog

  7.3         Variometer and variocoupler

  7.4         Rotary transformer

  7.5         Variable differential transformer

  7.6         Resolver and synchro

  7.7         Piezoelectric transformer

  
  

  
  

  You may know the details about the electrical transformer from the following articles:
   
  

  
  

  1. Working Principle of Transformer;
  2. Transformer Construction;
  3. Core-type Transformers;
  4. Shell-type Transformers;
  5. Elementary Theory of an Ideal Transformer;
  6. E.M.F. Equation of Transformer;
  7. Voltage Transformation Ratio;
  8. Transformer with losses but no Magnetic Leakage;
  9. Transformer on No-load;
  10. Transformer on Load;
  11. Transformer with Winding Resistance but no Magnetic Leakage;
  12. Equivalent Resistance;
  13. Magnetic Leakage;
  14. Transformer with Resistance and Leakage Reactance;
  15. Simplified Diagram;
  16. Total Approximate Voltage Drop in Transformer;
  17. Exact Voltage Drop;
  18. Equivalent Circuit Transformer Tests;
  19. Open-circuit or No-load Test;
  20. Separation of Core Losses;
  21. Short-Circuit or Impedance Test;
  22. Why Transformer Rating in KVA?;
  23. Regulation of a Transformer;
  24. Percentage Resistance, Reactance, and Impedance;
  25. Kapp Regulation Diagram;
  26. Sumpner or Back-to-back-Test;
      
  27. The efficiency of a Transformer;
  28. Condition for Maximum Efficiency;
  29. Variation of Efficiency with Power Factor;
  30. All-day Efficiency;
  31. Auto-transformer;
  32. Conversion of 2-Winding Transformer into Auto-transformer;
  33. Parallel Operation of Single-phase Transformers;
  34. Questions and Answers on Transformers;
  35. Three-phase Transformers;
  36. Three-phase Transformer Connections;
  37. Star/Star or Y/Y Connection;
  38. Delta-Delta or ∆/∆ Connection;
  39. Wye/Delta or Y/ Connection;
  40. Delta/Wye or ∆/Y Connection;
  41. Open-Delta or V-V Connection;
  42. Power Supplied by V-V Bank;
  43. Scott Connection or T-T Connection;
  44. Three-phase to Two-Phase Conversion and vice-versa;
  45. Parallel Operation of 3-phase Transformers;
  46. Instrument Transformers;
  47. Current Transformers;
  48. Potential or Voltage Transformers.