Transmission & Distribution

As power demands increase and technology continually evolves, system protection, monitoring, and control have never been more vital when managing risks to the grid. 

GSW-IS brings the latest training, expertise, and technology to help ensure your system’s reliability, as well as full suite of capabilities that range from engineering and full system studies to fiber, protection and control, protective relay, substation apparatus testing and commissioning, and infrared thermographic and corona surveying.

General Capabilities: Substation Commissioning; Substation Design; Acceptance and Maintenance Testing; Protective Relay Systems Testing; Oil and SF6 Circuit Breaker Maintenance; Circuit Breaker Testing and Installation; Transformer Testing and Installation; Transformer Oil Processing Services; Insulating Fluids Sample and Analysis; Repair Services; Engineering and System Studies; 70E Arc Flash Studies; Fault Study Simulations; Relay/Protection System Studies

Fiber Optics: Optical Time Domain Reflectometer (OTDR) Pre/Post Testing Fiber, Tier 2 Testing for Attenuation, Losses and Length; Bare Fiber Reel Testing; OPGW Attenuation; Fusion Splices; Fiber Termination; FOA Certified

Infrared Thermography: Drone Infrared Thermography

Corona Scans

Electrical Testing – Relays: Electromechanical; Digital Microprocessor; Relay Settings; Schematics; Protection Scheme Evaluations; End-to-End Testing; Fault Simulations

Electrical Testing – Circuit Breakers and Switches: Commissioning; Timing; Travel Analysis

Electrical Testing – Transformers: Power Factor; Sweep Frequency Response Analysis; Leakage Reactance

Electrical Testing – Cables: Partial Discharge Testing; Power Factor; AC/DC Hi-Potential Testing; Very Low Frequency (VLF) Testing; Fault Location

Electrical Testing – SCADA and Communications: Commissioning; Power Line Carrier; Reprogramming; Reliability Tests; Integration and Upgrades; Digital Fault Recorders; Ground Grid Testing; Battery Testing; UPS Acceptance Testing; Digital Fault Recorder (DFR) Set-up

Service and Maintenance: Substations; Oil Handling; Transformers; Circuit Breakers and Switches