Aging power delivery infrastructures by Willis, H. Lee; Schrieber, Randall R

By Willis, H. Lee; Schrieber, Randall R

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SAIDI increases slightly as a result. Also quite important for the utility’s bottom line, these higher repair and restoration needs increase overall costs. 1c. More inspection and testing efforts required. Equipment more prone to fail often benefits from more frequent and comprehensive inspection and testing, which in many cases can reveal developing problems before they cause failures. Catching trouble early allows what would have become unscheduled emergency repair work to be done in a more efficient, less costly scheduled manner.

5. The area is plagued by above average equipment failure rates. Overtime is high due to large amounts of unscheduled repair and restoration. 6. SAIFI began rising some years ago; SAIDI is beginning to rise now. 7. Major interruption events always occur due to a bizarre series of outages. 8. Things go bad a lot. 9. No comprehensive plan exists. Aging Power Delivery Infrastructures 39 systems, these can provide a certain amount of immunity from increasing rates of equipment failure. The failures still occur, but they lead to far lower SAIDI and SAIFI increases.

Regardless, making changes and additions to 38 Chapter 1 its operating processes and methods and perhaps the power delivery system, too, a utility can control condition deterioration and impacts on customer and system performance so that it can get the best business results possible. Manage Both Effects and Causes Managing an aging infrastructure is about both reducing the effects of aging equipment as much as possible (if you can’t control the disease, control the symptoms) and controlling the deterioration of the system as much as possible (but keep the disease under control as much as you can).

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