Electric Power Transmission - Inventory and Asset Management

The most basic question a utility may have is, "What do I have, and where is it?" This can be a difficult question to answer when you consider that much of a utility's existing infrastructure may have been designed and engineered by hand, prior to modern computer aided design and drafting (CADD), or the placement of structures occured before Global Positioning System (GPS) survey methods allowed its incredible accuracies. The question can be even more difficult to answer when you consider that during an emergency (tornadoes, hurricanes, etc.), the most pressing objective of a utility company is to get a line back in service, not maintaining detailed documentation of the repaired line.

Aerotec's lidar and digital imagery systems can quickly and accurately capture the precise location of towers and catenaries, including the catenary's sag, to bring a utility's documentation up to date. In addition, obstructions along the right-of-way can also be documented. All of this is delivered in a format that is ready-to-use in your existing engineering and GIS environment.

The map below depicts a simple plan and profile of existing conditions, thermal rating, and danger trees.
Plan & Profile Drawing

In the Profile View, the transmission structures are depicted in light blue. The vertically-stacked catenaries are depicted in green, with the bottom cantenary depicted by two black lines The top black  line is the catenary at the time of the survey. The second black line is the catenary at an elevated temperature. Next, the danger-curve limits are depicted by two red curves. Again, the top red curve is the danger limit at the time of survey. The bottom red curve is the danger limit at an elevated operating temperature. Below the catenaries are the ground profiles and vegetation, depicted in dark green. The top of some vegetation is depicted in red. This indicates that the vegetation is violating the danger curves, which again are depicted in red.

Below the Profile View is the Plan View, which depicts the same information.

     
In addition to this presentation style, Aerotec can add high resolution color digital imagery (above) to the Plan View. This will allow users to better understand the local environment (housing, roads, etc.) around the right of way.  
     
Aerotec's close-up digital photos (Happy Snaps) are reused to identify structure attributes to populate transmission GIS Databases. Either the customer or Aerotec can capture this digital information since each Happy Snap is geo-referenced to the structure location. Aerotec uses in-house proprietary software to capture the attribute data specified by the customer.  
   
Asset Management-GIS Data Capture Asset Management-GIS Data Capture  
Asset Management-GIS Data Capture Asset Management-GIS Data Capture  

 
Transmission Facilities Location  
 
 

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