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Power supply considerations when building a large growler

  • July 2017
  • Number of views: 759
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Tom Bishop
EASA Senior Technical Support Specialist

When considering building a large growler for testing armatures and rotors, the initial decision typically is to select a kVA rating. A primary reason for this is that the growler will need to be connected to a power supply of sufficient ampacity at the supply voltage. To help simplify a complex design process, four kVA ratings have been selected for this article. One of the selected ratings should fit the needs of most service centers.

This article covers:

  • A design example
  • Determining turns and wire size
  • Building the core
  • Determining coil dimensions


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