Servicing transformers from 500kVA to 100MVA, we offer the same level of service whether repairing a specific component of the unit or the complete transformer. LTL electrical technicians evaluate the transformer electrically and mechanically. Our large inventory of quality surplus, new and used equipment includes transformers, switchgear, fuses, lightning arrestors, insulators, towers, poles and other related equipment available for sale and immediate delivery. LTL's extensive inventory allows for quick repairs when required, and our generator rentals offer temporary power solutions for unplanned power outages, as well as emergency call-outs. With direct access to an expanse supplier network, we have the right equipment to get the job done efficiently 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 a high oil quality, the transformer is able to perform to its original design specification regarding over-voltage, harmonics, heat, and fault current.

Lineman's Testing Laboratories' environmentally-friendly mobile Transformer Oil Regeneration Plant was specifically designed and built by a renowned industry leading manufacturer of Transformer Oil Regeneration systems to regenerate insulating mineral oil in energized or de-energized transformers, as well as on a tank-to-tank basis. The system uses a special blend of Fuller's Earth Clay that is permanently installed in a set of columns and the oil is directed through the columns by forced percolation. In order to ensure a high degree of control and reliability, the system is controlled by a programmable logic controller and monitored/interfaced by a computerized supervisory system, which monitors and records all vital operating parameters.

New and in-service transformers develop and/or have moisture, solid particles, and acidity. If not maintained at acceptable levels, transformer failure and/or drastically reduced transformer life will result. Our mobile processing unit connects directly to your on-site transformer and can process on- or off-line. This is the only type of process which guarantees maximum contamination removal of all internal components (core and coils). LTL's mobile unit polishes the oil to a quality that cannot be achieved by replacing the oil with new. Our system is capable of replacing inhibitors in the oil which protect against oxidization of internal components thereby allowing the transformer to perform to its manufacturer design criteria.

Regardless of the work performed, LTL takes great pride in using only quality parts and ensuring your transformer is working efficiently and is back online as quickly as possible.

as required of high and low voltage electrical and mechanical components. As well, LTL offers transformer commissioning.

LTL's extensive inventory of new and used transformers, switchgear, fuses, lightning arrestors, insulators, towers, poles and other related equipment is available for immediate sale and delivery. Our ability to pull from this inventory allows for quick repairs when required, and our generator rentals offer temporary power solutions for unplanned power outages, as well as emergency call-outs.

A detailed engineering report summarizing any deficiencies noted per applicable legislated standards and codes, as well as recommendations for repair to maintain a reliable service, is provided after service. All data collected is recorded for historical reference and is used to monitor the electrical system's overall performance from year-to-year.

As a precursor to the substation maintenance service, LTL recommends infrared scanning (infrared thermography) 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.

Call Lineman's Testing Laboratories and speak to an Electrical/Substation Division Representative for a substation maintenance program tailored to your budget and operational requirements.

Servicing all your substation construction needs:

• Transformer installations and commissioning
• All high voltage cable work
• Tower design and erection
• All methods of terminal pole construction
• Overhead line construction
• All forms of underground line construction
• High ampacity electrical equipment and service work for commercial, industrial and utility applications
• All civil work related to the above services

Thermography is the process of using an infrared imager to detect the heat that objects radiate as infrared energy which is proportionate to loads. Infrared energy is a portion of the light spectrum invisible to the naked eye. LTL's state-of-the-art infrared cameras detect electrical and/or mechanical hot-spots and record them into a picture format, clearly identifying these objects as heat images and measuring their temperature. By creating a thermogram, our skilled technicians obtain information from several points in the field view of the scanner in mere seconds. Because a hot connection can fail causing equipment damage and/or fire, infrared scanning is an essential component to an equipment maintenance program.

The information captured from the scan is provided in a detailed report including colour photos of equipment hot-spots. 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.

Electrical apparatus faulting-to-ground, or phase-to-phase, can produce an explosive force with intense heat. Plant personnel and persons within the vicinity can be seriously injured. By minimizing electrical equipment failures, infrared scanning helps to reduce a potentially serious risk to your plant personnel.