Mayfield/Nelson Substation - 138 kV Electrical Substation in the United States

Mayfield/Nelson Substation is an operational electrical substation located in the United States, specifically at coordinates 41.522827, -81.329668. It is owned and operated by Illuminating Company, a utility serving the area. The substation operates at a voltage of 138 kV, classifying it as a high-voltage transmission-level asset critical for regional grid stability. The substation operates under the regulatory framework of the North American Electric Reliability Corporation (NERC) and the Federal Energy Regulatory Commission (FERC), which enforce reliability standards for bulk power systems. As a 138 kV facility, it plays a role in stepping down transmission voltages for distribution or interconnecting generation sources. Typical substations of this scale include switchgear, transformers, and protection systems compliant with standards like IEEE C37. This substation contributes to the electrical infrastructure of the region, supporting residential, commercial, and industrial loads. Its operational status ensures continued power delivery, and its location in the United States places it within a well-regulated grid environment. The facility's role in voltage regulation and fault isolation is essential for maintaining system reliability.

The substation is located in a region with a temperate climate, where seasonal weather variations can impact grid operations. As a 138 kV facility, it is part of the transmission network that connects power plants to load centers. The site's environmental considerations include electromagnetic field management, oil containment for transformers, and vegetation management to prevent outages. Typical substations of this voltage class are often situated near load centers or generation sources.