For large-scale land searches around many lines or substations, the basic parcel search task cannot handle those large search areas. Use this search method instead which can handle the large search.
Create search area polygon with the combo buffer tool
Check out the instructions here on using the combo buffer to create a search area polygon on the map. Input the desired search distance around substations and lines.
Run parcel search on the combo buffer polygon
Zoom in so you can clearly see the buffer area in orange and click on any section of the buffer
In the combo buffer pop-up window:
Click See Actions
Select Project Tasks
Select Parcel Search
​
In the parcel search modal, enter:
Min acres (and max acres if desired)
Click Get Count
Click Run to pull the parcels into the project map