LTL skilled technicians perform the following on-site transformer repair and testing services:

• Complete transformer commissioning and testing
• Transformer assemble/disassemble, and transportation
• Fin replacement
• Bushing replacement
• Tap changer maintenance, repair, and replacement
• Oil leak termination
• Painting
• New unit specification, supply, and installation
• Mobile Transformer oil regeneration
• Rewind service (shop only)

We service transformers ranging from 500 kVA to 100 MVA, providing consistent, high-quality service whether repairing a specific component or the entire unit. LTL’s electrical technicians conduct thorough electrical and mechanical evaluations of each transformer. Our inventory features a wide selection of quality surplus, new, and used equipment—including transformers, switchgear, fuses, lightning arrestors, insulators, towers, poles, and other related items—available for sale with immediate delivery.

Our extensive inventory allows for rapid repairs when needed and our generator rentals offer temporary power solutions for unplanned power outages and emergency situations. With direct access to an extensive supplier network, we have the right equipment to get the job done efficiently and with minimal downtime.

To ensure longer Transformer life and reduce the risk of dielectric breakdown, LTL recommends maintaining your Transformer’s insulating oil properties for optimum performance. By maintaining high oil quality, the Transformer can perform to its original design specification regarding over-voltage, harmonics, heat, and fault current.

LTL uses quality parts to ensure your Transformer is working efficiently and is back online as quickly as possible.

Directed and performed by in-house experienced and certified technicians, LTL’s preventative substation maintenance programs are tailored to suit customer budgetary and operational requirements while meeting applicable regulatory and legislated standards. We ensure the power system is operating properly for performance reliability and personnel safety.

LTL maintenance programs include testing and calibration, inspection, adjustment, cleaning, repair, and analysis of electrical insulating fluids as required of high and low voltage electrical and mechanical components.

Our existing inventory of parts and equipment allows for quick repairs when required, and our generator rentals offer temporary power solutions for unplanned power outages, as well as emergency callouts.

As a precursor to the substation maintenance, LTL recommends infrared scanning of electrical equipment to detect electrical and/or mechanical hot spots signalling possible equipment weakness or failure. Infrared scanning is performed by LTL’s certified infrared thermographers one month prior to the scheduled substation maintenance date allowing LTL technicians to include in the maintenance program whatever repairs are required as identified in the infrared scan report.

Early detection of electrical equipment weakness or potential hazard through annual substation maintenance helps to keep operational and associated costs to a minimum, extend the life of the electrical system, and improve safety conditions for electrical system operating personnel.

Improve plant safety, prevent costly downtime, reduce operating costs, and increase reliability.

Infrared Thermography, also known as Infrared Scanning, is highly beneficial to the preventative maintenance program. Infrared scanning accurately identifies potential electrical equipment problem areas such as faulty connections, poor contacts, phase imbalances and overload conditions requiring immediate attention allowing for repairs before failure or damage occurs. Early detection aids in avoiding emergency repairs and the high cost of production line shutdowns. The infrared inspection is non-contact and non-destructive; therefore, there is no need to interrupt production or plan for costly shutdowns.

Not all Infrared Scanning programs are created equal. Engaging a licensed electrician who is also a certified thermographer guarantees that the scanning is conducted by a professional who comprehends the significance of the hot spots detected. This expertise is crucial for accurately distinguishing between hot spots that pose immediate risks to equipment performance and personnel safety, and those that are less urgent and can be managed during routine annual preventative maintenance.

LTL on-site crews consist of certified infrared thermographers, licensed electricians, and skilled technicians who possess the qualifications and expertise to perform thorough and accurate inspections of all electrical equipment. Wearing the appropriate arc flash safety gear, our thermographers safely open panels to precisely identify hot spot locations using thermal imaging. This enables LTL technicians to pinpoint the exact components that need repair or replacement, helping to prevent costly equipment downtime and, more importantly, protect operators from injury.

LTL recommends infrared thermography twice yearly under load for all electrical equipment in industrial and commercial environments where system reliability and continuous operation is essential.