Each facility under study consisted of a G&W Viper Recloser with SEL 651R recloser controls, a 4-way or 6-way G&W VFI switchgear with Form 3 control, well site distribution and a central facility. The central facility housed the Motor Control Center (MCC) for the tank farm and flares as well as the G&W VFI and recloser. ECI kept a field technician on-site throughout the project for updating one-lines to send to Marathon. Once the drawings for a facility were approved by Marathon, an existing software model was updated to reflect any changes in the drawings.

A coordination and arc flash study was then performed to determine incident energies and locations with improper coordination. After the analysis was complete, a report with recommendations for improvements was provided along with arc flash labels for placement on analyzed equipment. ECI was also responsible for affixing the labels to the equipment once approved.

• Facilities already in service.
• Responsible for As-Built existing one-lines.
• Responsible for coordination studies and arc flash studies for all central facilities and distribution access points.