Transformers (Separately Derived Systems)

The Transformers (Separately Derived Systems) module of the Virtual ElectricianÒ series covers one of the more integral components of the premises wiring system: the isolation transformer. Some of the topics that are addressed are:

• Types of transformers
  
• Electromagnetic theory
  
• Electromagnetic fields
  
• Grounding of transformers
  
• Sizing of transformers
  
• Harmonics
  
• Tap rules
  
• Conductor sizing

This module concludes with a site investigation that will help you troubleshoot problems on the primary and secondary sides of the transformer. As with the other modules, relevant code requirements and recommended practices are presented in an easy-to-understand manner.

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