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When the winding has been placed around the coil body it will meet with the previous positioned wire and needs to make a step with the size of the wire gauge. This movement is called winding step. The winding step can occupy an area of up to 60 degree of the coil circumference for round coil bobbins and takes one side of rectangular coil bobbins.
Fig. 1 L P σ and L S σ are primary and secondary leakage inductances expressed in terms of inductive coupling coefficient under open-circuited conditions.. The magnetic circuit's flux that does not interlink both windings is the leakage flux corresponding to primary leakage inductance L P σ and secondary leakage inductance L S σ.
A change in winding position, degradation in the insulation, etc. will result in change in capacitance or inductance thereby affecting the measured curves. [ 2 ] Tests are carried out periodically or during major external events like short circuits and results compared against the initial signature to test for any problems.
Nine-winding, three-phase transformers typically have three primaries and six identical secondary windings, which can be used in zigzag winding connection as pictured. [1] A conventional six-winding, grounding transformer or zigzag bank, [1] with the same winding and core quantity as a conventional three-phase transformer, can also be used in ...
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Hence the term winding loss is often preferred. The term load loss is used in electricity delivery to describe the portion of the electricity lost between the generator and the consumer [ 1 ] that is related to the load power (is proportional to the square thereof), as opposed to the no-load loss .