3 Phase Associates, LLC

Power Engineering & Design

Power Substation Engineering & Design

We perform greenfield & brownfield modifications (voltages 4kV and above).

  • Substation Physical Design - site plan/layout, general equipment arrangement, equipment elevation sections, bus design, equipment details, grading, foundations, steel structures, equipment replacements, switch house design & layout, fencing, grounding, lightning protection, conduit & cable schedules, bill of material (BOM), and so on. See our physical and substation design post for more details on substation design.
  • Protection & Controls (P&C) - single lines, schematics, mechanism details, logic diagrams, panel details, wiring, cable schedules, bills of material, etc. We value protection and controls since it is essential in protecting expensive substation equipment. See our protection and controls post for more info.
  • Protective Relaying - schematics & wiring design, relay logic diagrams, protection settings and implementation.
  • System Studies & Arc Flash - performing grid analysis for planning, dependability, reliability, fault analysis, smart grid, distributed generation (DG), distributed energy resources (DER); including arc flash studies for safety barriers and proper PPE requirements.
  • Supervisory Control & Data Acquisition (SCADA) - SCADA design, equipment (RTU, I/O Module) selection, programming and implementation.
  • Telecommunications - transport design, programming and implementation of Fiber Optics, Microwave, Radio, Powerline Carrier, and Local Area Networks/Wide Area Networks (LANs/WANs).
  • Cyber & Physical Security - Cyber assessments, critical asset identification, cyber network design, intrusion prevention & detection systems (IPS/IDS), data access management, physical security protection, NERC CIP requirements, cyber awareness training, pen testing, etc.
  • DC Power Systems - DC battery studies, battery & charger sizing, DC supply selection, panel sizing, etc.
  • Substation Major Equipment Specifications -Substation Transformers, Power Circuit Breakers, Circuit Switchers, Line-Rupters, Motor Operated Disconnects, Station Service Transformers, Automatic Transfer Switches, CTs/PTs, Lightning Arresters (Surge Arresters), Prefabricated Switch (Control) Houses, Medium Voltage Switchgear, Panelboards, Batteries & Chargers, Switch House Lighting, Bus Type & Sizing, Raceways, Power Cables, SCADA Controls, Telecomm Equipment, Substation Network, and so on.
  • Engineering Field Support - Construction survey walkdowns, construction submittal reviews, RFIs (request for information), and so on.

Electrical Engineering Design Services

We can provide electrical engineering services for all facility electrical upgrades and improvements for power delivery modifications, arc-flash analysis, lighting design & analysis, electrical permit inspections, electrical sealed blueprints, SCADA automation, PLC controls and industrial control systems (ICSs). We perform electrical engineering and design services for all electrical facilities that include Utilities, Manufacturing, Processing Plants, Industrial, Commercial, Oil/Gas, and Waste/Water facilities for

their electric power supply, including supporting electrical building permit approvals and electrical inspections with professional engineering (PE) sealed blueprint drawings.

Whether involving transformers, switch gear, protective relays, main distribution panels, load centers, lighting, motor control centers (MCC's), SCADA automation, PLC's, telecommunications, 3D CAD modeling, or solar power and energy storage, we are here to help.

Deliverables may include:

  • Electrical Load Power Demand
  • Arc Flash Analysis (with Labels)
  • Electric Utility Interface Diagram(s)
  • Electrical Single Line Diagram(s)
  • Electrical Power & Lighting Diagram(s)
  • Electrical Detail Sheet(s)
  • Electrical Equipment Schedule(s)
  • Lighting Schedule(s)
  • Conduit & Cable Schedule(s)
  • Telecommunications Design
  • Vendor & Construction Specifications
  • and much more...

Basic Electrical Engineering Calculator Tools

Click on the link above in order to perform the desired electrical engineering calculator tool for performing basic electrical engineering calculations, like: transformer fault currents, short circuits, substation physical electrical clearances, voltage drop, power factor correction, motor full load, conductor ampacities, grounding, lighting design, solar power systems, etc.

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