24 Hour     Emergency Number

847-483-3900

Several factors reduce the reliability of a facility’s electrical power systems. As soon as equipment is installed, a process of normal deterioration begins.  Unchecked, the deterioration process can cause equipment malfunction or an electrical failure.  Deterioration can be accelerated by factors such as hostile environment, increased temperature or severe duty cycles. A well-designed Electrical Preventive Maintenance program identifies and recognizes these factors and provides cost effective mitigation techniques.

The maintenance of a facility’s power system must be a planned effort. A well administered testing program can reduce accidents and minimize unplanned power outages.

Benefits of an effective preventative maintenance program are dual-fold:

  a) Quantitative - Measurable benefits realized by reduced cost of repairs, planned outages, and improved operating efficiency.

  b) Qualitative - Unmeasurable benefits realized by less unscheduled downtime,  improved safety, and effective outage planning.

ETTI uses state-of-the-art equipment. To ensure the accuracy, equipment calibration is traceable to the National Institute of Standards and Technology.

 ØAcceptance and Maintenance Testing:

• Infrared Scanning
• Troubleshoot to the specific component with Amp readings, mV drop, etc.
• Repairs are done while on site (if Safety permits)
• Switchgear Preventative Maintenance
• Clean, Inspect, Torque, and Repair including Failure Analysis
• Three to Five Year maintenance programs to fit within any budget.
• High Potential Testing (AC or DC)
• Medium Voltage Cables rated up to 35 KV
• Medium Voltage Vacuum Breakers and Contactors
• Generators, UPS, Automatic Transfer Switches, and Motors
• Load Bank Testing
• Polarization Index and Winding Resistance Testing
• Power Factor (Doble) Testing
• Complete System Functional Check
• Circuit Breakers, Circuit Switchers, and Motor Operated Disconnect Switches
• Air, Oil, Vacuum, or SF6 Breakers
• Retrofitting of Trip Units
• Ground Fault System tests
• Power Transformers:  Industrial, Utility, and Retrofits
• Oil Sampling and Analysis
• Turns Ratio, Polarization Index, and Doble Power Factor Tests
• Bushing Capacitance Tests
• Relay Communication Systems
• Fiber, audio-tone, microwave, and power-line carrier
• Protective Relays
• Microprocessor-based, solid-state, and electro-mechanical
• DC Systems
• Batteries, chargers, and inverters
• Ground (Earth) Resistance Tests
• Fall of Potential and Point to Point
• Cable Fault Locator
• Non-Destructive Time Domain Reflectometer (TDR)
• Auxiliary systems such as ATOs, HVAC, VFDs, & control system

Ø Power Quality Analysis

• Troubleshoot Premature Equipment failure
• Diagnose undesired harmonics and transients
• Mitigating techniques and problem solving

[Home] [Testing Services] [Transformers] [Power Quality] [Emergency Power] [High Potential] [Infrared Surveys] [Locating Services] [Employee Profiles] [Recent Projects] [NETA Affiliation] [Contact Us]