Coil Loss

Definition: Power loss in a transformer due to the flow of current. These losses are present only when the transformer is serving a load. Load losses vary by the square of the current magnitude. Load losses are composed of losses due to the current flow through the resistance of the conductors (the copper loss) as well as eddy losses in the windings, magnetic friction in the core known as hysteresis, and stray losses due to current flow through other components.

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