The Morristown Power System (MPS) serves near 14,500 customers in the city of
Morristown, TN. The system load peak is 165 MW, all served by the Tennessee Valley Authority through two points of delivery. MPS receives power at 161-kV from TVA at two delivery point substations and operates its own 69-kV sub-transmission system serving nine distribution substations in a redundant scheme. MPS has twenty-six 13.8-kV distribution feeders that feed power throughout the City. All together, MPS operates and maintains 39 miles of transmission line and 300 miles of distribution line.
The City of Morristown has three industrial parks, the most recent near Interstate I-81. Industrial/Commercial loads account or over 75% of energy sold. Load growth over the past 14 years has averaged 4.2%.
All distribution feeders are protected by state-of-the-art digital relays, providing the optimum in feeder coordination. MPS also has over thirty 3-phase reclosers on distribution circuits to isolate faults and provide increased reliability to industrial customers.
MPS monitors electrical system performance using a SCADA system at our Power Operations Center where dispatchers have real-time information of feeder loading and device status. This system allows remote operation of equipment, alarm history and valuable performance information.
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