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come to feed sub-buses, panels have come to feed sub-panels and transformers have been added at
multiple points in the tree. The end result is a very complex system with multiple layers that is
difficult to map on paper or electronically, let alone plan in advance.
Relative loads among substations are not evenly distributed. Figure 2-7 shows the percentage
breakdown of energy used by each substation over a typical week. However, because the equipment
used in different substations varies dramatically, substations with larger average loads may not
necessarily be inefficient compared to their peers. Typical energy users on the shop floor are
ovens, environmental testing chambers, processing equipment with motors including machine tools,
computerized test equipment, and work bench tools. Figure 2-6: Simplified electricity distribution tree for the IADC. 3A 33 X2 303 3C 3D Figure 2-7: Distribution of energy used by the 10 substations in the IADC in a typical week.
Energy Efficiency Program at the IADC
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This document was uploaded on 03/03/2014 for the course ADMIN 1 at Universidad Nacional de Colombia.
- Spring '14