Our Services 
Three and Thirty Engineering is capable of providing our clients with a complete electrical design package suited to their needs and done to their standards. Our projects range in scope from something as small as a relay replacement to complete greenfield substation electrical design.

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​Typical types of projects include:
·         Relay Replacement
·         Breaker Replacement
·         Substation Expansion Projects
·         Greenfield Substation Design

Design services include the development of:
·         One Line Drawings
·         Three Line Drawings
·         Control Schematics
·         Panel Layouts and BOM
·         Wiring Diagrams
·         Relay Logic Diagrams
·         SCADA and Communication Drawings
·         Cable Schedules
·         Station Power and Lighting
·         Construction Drawings
·         As-built Drawings
·         Start Sheets / CAD templates

Engineering services include:
·         Relay Coordination
·         SCADA Packages
·         Short Circuit Modeling
·         Arc Flash Study
·         Relay Testing
·         DC Circuit Commissioning
·         Battery Sizing
·         AC System Sizing