Field Services
At Shermco, our field services deliver safe, reliable, and efficient solutions to your electrical power systems, regardless of industry or scale. With North America’s largest team of NETA-certified technicians and engineers, we offer solutions tailored to your needs. From protection and control testing, maintenance, and upgrades to rotating machinery services, wind energy solutions, and power system diagnostics, our experts deliver quality and safety. Whether managing shutdowns and outages, optimizing wind turbines, or performing advanced field testing, Shermco is your trusted partner. Our focus on safety, reliability, and responsive service keeps your systems running smoothly.
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Our Services by Apparatus
Our Protection and Control Services Include
Dependable and secure protection and control systems are fundamental to safe, compliant, and resilient electrical systems. Shermco’s Protection & Control Field Services deliver the technical expertise across utilities, industrial sites, renewable energy, and critical facilities, to keep systems operating safely, meeting regulatory compliance, and prepared for evolving energy transition demands.
We provide complete power system protection and control services, that include design and drafting, power system study and relay settings, relay testing, acceptance testing, commissioning, and startup. Our teams support both greenfield projects and complex brownfield upgrades, ensuring your equipment performs as designed.
Shermco technicians are trusted experts in relay testing, installation, and troubleshooting typical and complex protection schemes. We perform detailed event analysis and system disturbance investigations to identify root causes and restore system performance. Our teams also deliver NERC and FERC compliance studies to help meet regulatory standards.
Our Rotating Machinery Field Services Include:
- On-Site Motor/Generator Inspection, Testing, and Reconditioning
- On-Site Motor/Generator Rewinding
- On-Site Pump/Blower Inspection and Reconditioning
- Preventive Maintenance on AC/DC Machines, Fans, and Blowers
- Ice Blasting
- Machine Removal and Installation
- Start-Up Commissioning
- Laser Alignment Services
- Field Balancing
- Bearing Inspection
- Advanced Vibration Collection and Analysis
- Current Signature Analysis
- Off-Line Motor Surge, Step Voltage, and High Potential Testing
- On-Line Motor Circuit and Dynamic Analysis
- Bore-Scope Inspection
- Oil Analysis
- Ultrasonic Analysis
Our Field Power System Testing and Maintenance Services Include:
- Cable Diagnostics
- Transformer Repair and Testing
- Oil Processing for Transformers and Breakers
- Breaker Repair and Testing (Low, Medium, and High Voltage)
- Switchgear and Motor Control Center (MCC) Testing
- Ground Testing
- Switch Testing and Repair (Low, Medium, and High Voltage)
- Ground Fault Relay Testing
- Relay Testing (Electromechanical and Solid-State)
- Infrared Thermography Scans
- Substation and Uninterruptible Power Supply (UPS) Battery Testing
- Automatic Transfer Switch Testing
- Partial Discharge Testing
- Medium-Voltage Contactor Testing
Our Wind Field Services Include:
- On-Site Generator Maintenance and Repair
- Bearing and Slip Ring Replacement
- Rotor Relead and Wye Ring Upgrades
- Vibration Analysis
- Laser Alignment
- Electrical Testing and EMPATH Electrical Signature Testing
- Generator Testing and Fault Analysis
- Up-tower Machining
