Overview
L.R. South Substation is an operational electrical substation in Arkansas, United States, owned and operated by Entergy Arkansas. It handles voltages of 115 kV and 13.86 kV, serving the regional grid.
L.R. South Substation is an operational electrical substation located in Arkansas, United States. Owned and operated by Entergy Arkansas, the facility plays a key role in the regional power distribution network, stepping down transmission voltages for local distribution. The substation operates at voltage levels of 115,000 volts (115 kV) and 13,860 volts (13.86 kV), typical for a medium-voltage substation that connects high-voltage transmission lines to lower-voltage distribution feeders. As part of Entergy Arkansas's infrastructure, it adheres to North American Electric Reliability Corporation (NERC) reliability standards and is subject to Federal Energy Regulatory Commission (FERC) regulation for transmission-level assets. Located in central Arkansas, the substation supports the electrical needs of the surrounding community, contributing to grid stability and reliability. Its operational status ensures continued service for residential, commercial, and industrial customers in the region, aligning with the broader electrical infrastructure of the United States.
Environmental context
The substation is situated in a region with a humid subtropical climate, where seasonal storms and heat waves can impact grid demand and reliability. Its urban-rural interface location means it serves both densely populated areas and surrounding agricultural zones. The facility's voltage levels and equipment age are typical for substations of its class, with standard environmental considerations for oil-filled equipment and electromagnetic fields.
Frequently asked questions
L.R. South Substation is located in Arkansas, United States, at coordinates 34.721028, -92.305211. It is owned and operated by Entergy Arkansas.
L.R. South Substation operates at two voltage levels: 115,000 volts (115 kV) for transmission and 13,860 volts (13.86 kV) for distribution, typical for a step-down substation.
L.R. South Substation is operated by Entergy Arkansas, a utility company serving parts of Arkansas. The facility is part of Entergy's electrical grid infrastructure.
As a substation in the United States, L.R. South Substation must comply with NERC reliability standards for grid stability and FERC regulations for transmission assets. It also follows industry standards like IEEE for substation design and operation.
Substations like L.R. South are critical nodes in the electrical grid, stepping down high-voltage transmission power to lower voltages for distribution to homes and businesses. They also provide switching, protection, and monitoring functions to ensure reliable electricity supply.