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Updating a steel mill power system to improve reliability and decrease energy costs

机译:更新钢厂电力系统以提高可靠性并降低能源成本

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The authors provide insight into the planning and implementation of several significant cost saving and reliability improvements at a turn-of-the-century steel mill in Ohio. A number of target areas needing attention were identified. These included the cost of electrical energy, the cost to manufacture oxygen inhouse, and the need to accommodate future modernization projects. An option also under consideration included possible elimination of the oxygen facility if lower-cost oxygen could be purchased from an independent vendor. Preliminary evaluations, plans, and reviews took approximately two years before approval was received to proceed with the main oxygen plant project. Its bidding process and implementation took an additional year. The power system modernization project, which included addition of the power monitoring system, short-circuit retrofit of the 13.8 kV switchgear, distribution transformer isolation capability and two new double-ended low voltage substations took an additional six months.
机译:作者提供了对俄亥俄州世纪州钢厂的几个重要成本节省和可靠性改进的规划和实施。确定了一些需要注意的目标区域。这些包括电能成本,制造氧气的成本,以及需要容纳未来的现代化项目。如果可以从独立供应商购买低成本氧气,也考虑的选项包括可能消除氧气设施。初步评估,计划和评论需要在收到批准后进行大约两年,以便进行主要氧气工厂项目。其竞标流程和实施需要额外的一年。电力系统现代化项目,其中包括电源监控系统的添加,13.8 kV开关设备的短路改装,分配变压器隔离功能和两个新的双端低压变电站额外六个月。

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