Formation pls cadd upgrade#

The subject of investigation was a 230-kV line considered a major component of the Arizona transmission system, which traverses approximately 17 miles (27 km) of mountainous terrain. The required analysis ventured beyond the normal capabilities of commercially available analysis software and, ultimately, provided valuable insight for evaluating lines with suboptimal survey data or those exhibiting uncommon behavior.

Formation pls cadd upgrade#

The Salt River Project had the opportunity to evaluate one such line following a conductor upgrade project that yielded some unexpected and undesirable results. Particularly over rough terrain, each of these perturbing elements can become amplified and present a greater challenge to model. During that time, they have been exposed to any number of loading events, maintenance operations and upgrades, each altering the line's performance, sometimes in ways unknown to the owner. Many of these transmission assets have been in operation for the better half of a century.

Paired with advanced surveying technology such as light detection and ranging (LiDAR), computer models can mimic line behavior in 3-D space with astounding accuracy.ДЇor some lines now under assessment, this work will mark their first incarnation in a computer model. Equally unprecedented is the computing power at the disposal of today's transmission line engineers. At present, analysis of existing transmission line assets across the United States is reaching an unprecedented pace.

(NERC), this work is no longer a discretionary activity. However, because of recent assessment requirements enacted by the North American Electric Reliability Corp. Utilities have long sought untapped capacity in existing lines through rerating studies or have attempted to flush out reliability issues by similar means. Forensic analysis of transmission lines is not a new science.