By Mike Price It’s easy to see a water well drilling site as full of potential hazards. One of the more common hazards among these is electricity. A snapshot in time between 1992 and 2000 revealed electricity was.
[pdf] VFD House: This is the main electrical room on the rig. It supplies power to all rig equipment and contains the PLC (Programmable Logic Controller), VFDs (Variable Frequency Drives) for all motors, and generator control cubicles. It is the central hub where equipment control takes place. 2.
[pdf] Each screw machine must be equipped with a gas storage tank and, if needed, auxiliary equipment such as a cold dryer and a filter. The installation requirements are as follows: A) The installation sequence of supporting equipment is: “air compressor → gas tank → gas-water separator → cold dryer.”
[pdf] 
