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The space factor, also known as the filling factor or packing factor, for strip on edge winding in electrical engineering, specifically in the design of transformers or other magnetic coil applications, refers to the ratio of the total cross-sectional area of the conductors to the cross-sectional area of the winding window. When conductors are wound on edge, as opposed to being flat or in a round wire form, it allows for a denser packing in the winding space, potentially improving the space factor.
For strip on edge windings, the space factor can be significantly high due to the reduced insulation needs between each layer and the efficient use of the available winding space. While the exact value can vary depending on the specific design and material used, values for the space factor for strip on edge windings typically range from approximately 0.7 to 0.9. This is generally higher than for round wire windings, where the space factor might range from 0.4 to 0.6 due to the circular cross-section not utilizing the winding space as effectively as a strip on edge.
However, it’s important to note that these values can vary significantly based on the design, the exact materials used (both conductor and insulation), and the method of winding. Precise calculations for a specific application would take into account these variables to optimize the design for efficiency, cost, and manufacturability.