Comprehensive System Study

Location: Santa Ana, Calif.

Client: Orange County Sanitation District

Burns & McDonnell was contracted by Carollo Engineers to provide assistance in a comprehensive system study for two wastewater treatment plants for Orange County. Burns & McDonnell’s scope included development of a database for maintaining equipment ratings and maintenance information. This database was designed to transfer equipment information into the ETAP load flow and short-circuit analysis programs. Information shared between ETAP and this custom-designed database allowed reports to be generated that compared equipment ratings with system parameters. Burns & McDonnell’s scope also included a reliability study using the Fault Tree reliability analysis software, evaluation of the protective device coordination throughout both plants, and a neutral grounding study. Burns & McDonnell also was contracted to review Carollo’s short-circuit, load flow, motor starting and harmonics studies. These studies included analysis of the existing electrical systems, recommendations for improvements, analysis of the improved scenarios, and recommendations for planning through 2020.