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This 3D animated video explains how an off load tap changer works. Off load tap changers are fitted to electrical transformers and are sometimes referred to as de-energized tap changers, or no load tap changers.
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▶️Introduction
We discuss how the no load tap changer works and its construction. There are two main types of tap changer, on load, and off load, but this video focuses on the off load type only.
Off load tap changers are used to vary the amount of secondary winding turns. By varying the amount of secondary turns within the circuit, it is possible to vary the output voltage of the transformer.
The terms ‘turn ratio’, ‘voltage ratio’ and ‘mutual inductance’ are mentioned during this video.
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How Off Load Tap Changer Works
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