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Power Distribution from a Transformer to the Distribution Board (Three-Phase System) 1. Transformer Output:The transformer steps down the high-voltage electricity (e.g., 11 kV or 33 kV) from the transmission lines to a usable level (e.g., 400V for three-phase). 2. Main Supply Lines: • The three-phase power consists of three live conductors (L1, L2, L3) and a neutral. • These conductors carry alternating current, each phase 120° out of sync with the others. 3. Protection at the Transformer: • Cir
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