Substation and Protection & Controls Engineering

Substation and Protection & Controls Engineering Overview

GAI’s experienced specialists provide energy clients full-range services for substation and protection and controls engineering, maintenance support, and upgrade. We offer support for initiatives including greenfield siting and permitting, upgrades and expansions, and system automation and control design.

GAI’s capabilities in substation analysis and design include site selection and development, equipment selection and physical layout, as well as protective relaying and controls. Our start-to-finish involvement begins with project initialization and continues through to energization.

When it’s time for substation upgrades, GAI specialists help lead projects for structure and foundation reinforcement and updating equipment including, but not limited to, protective relays and panels, auxiliary equipment, obsolete or over-duty circuit breakers and switching devices, aged or overloaded transformers, and bus conductors.

Substation Project Types/Services

  • New and Expanded Substation Design (Up to 500kV)
  • Autotransformer, Line Switch, Wave Trap, Surge Arrester and SSVT/CCVT/PT & CT Installation Design
  • Single and Three Phase Breaker Installation Design
  • Design for Installation/Replacement of Distribution, Regulators, Station Service Transformers and Throwover Cabinets, Disconnects and Fused Disconnects and Single and Three Phase Reclosers
  • Major Equipment Review and Selection
  • Protective Relaying/Control System Design (SCADA)
  • Lightning Protection Analysis and Design
  • Substation Access Control, Security and Lighting Design
  • Substation Ground Grid Analysis and Design
  • Outdoor Switchgear, Series Reactors and Shunt Capacitor Bank Installation Design
  • Slack and Rigid Bus Design
  • Flexible Conductor and Connection Review and Design
  • Conduit Plan and Schedule Review and Design
  • Bill of Material and Drawing Development

Protective Relaying/Control System Design (SCADA)

  • Relay Model Selection
  • System Protection Standard Development
  • Relay Schematic and Panel Wiring Development
  • Relay Panel layout and Configuration
  • Remote Terminal Unit (RTU) Upgrade and Implementation
  • Human Machine Interface (HMI) Installation
  • Fault Monitoring/Power Quality Monitoring Design
  • Metering Installation
  • Control Building Design
  • Protective Equipment Specification and Review
  • Conceptual Studies such as Green and Brown Field Layouts; Construction Sequencing; Cost Estimating and Site Investigations

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