Grubb Engineering, Inc.

Design for power systems from 120V low voltage to medium and high voltage, serving commercial, industrial, and utility applications in existing and new facilities.

• Water and Wastewater Facility Electrical Design

  Electrical design for potable water production, storage tank, well site, wastewater treatment, odor control, and recycled water facilities.

• Substation, Transmission, and Distribution Design

  Electric substation design, transmission line design, and distribution line design for electric utility clients.

Controls engineering for utility and industrial systems, from SCADA architecture through field instrumentation.

• SCADA System Design
• Instrumentation Design
• Control System Design

Computer-generated studies for protective relay settings, short circuit analysis, protective device coordination, and arc flash hazard analysis per NFPA 70E and NEC requirements.

• Short Circuit Analysis

  Evaluation of maximum potential short circuit amperes for fault conditions, assessing withstand and interrupting ratings of electrical components per NEC 110.9 and NFPA 70E Article 210.

• Protective Device Coordination Analysis

  Analysis to isolate faulted components while maintaining system operation, using time-current characteristic curves per ANSI and NEC requirements.

• Arc Flash Hazard Analysis

  Analysis for appropriate PPE selection per NFPA 70E and NEC Article 110.16, including arc flash hazard equipment labeling.

Software-based and field radio path studies for remote utility communication and control.

• Power Generation Communications
• Water Utility Communications
• Wastewater Utility Communications

Electrical monitoring and reporting for load behavior, voltage events, and power-quality performance.

• Load Monitoring
• Voltage Event Analysis
• Power Meter and Recorder Reporting

Studies that identify ways to improve electrical cost performance.

• Power Factor Correction
• Peak Demand Limiting
• Utility Cost Reduction

Upgrade planning for existing electrical and controls assets.

• Electrical Equipment Assessment
• SCADA and Controls Assessment
• Cost Estimating and Upgrade Reports

NETA-accredited power systems testing and maintenance for medium and high voltage equipment, low voltage equipment, and specialty diagnostic services.

• Medium and High Voltage Equipment Testing

  Transformer testing, medium voltage cable testing and identification, switchgear and circuit breaker testing and maintenance, relay testing and calibration, switchgear ultrasonic and TEV testing, and SF6 or nitrogen filling for pad mounted switches.

• Low Voltage Equipment Testing

  ATS testing and maintenance, circuit breaker testing and repair, motor testing, switchgear and circuit breaker retrofits and fabrication, new switchgear commissioning, and panelboard and switchboard testing.

• Diagnostic and Specialty Testing

  Thermal infrared scanning, power quality and consumption monitoring, ground testing, video conduit inspection, load bank testing, and healthcare facility NFPA-99 testing including isolation transformer panel and ground receptacle testing.