Transformer Maintenance and Repair Services

Repair duration depends on the leak location, equipment condition, repair method, access requirements, and whether the apparatus can remain in service. TDS begins with leak detection and equipment assessment, then recommends a targeted sealing approach. Some repairs can be completed without traditional disassembly, while more involved conditions may require additional planning. The service team can discuss expected work requirements after reviewing the equipment.

TDS repairs common oil leaks involving valve gaskets, bushings, drain plugs, lids, valve stems, compartments, flanges, radiator fins, manway covers, and temperature probes. Technicians also address non-traditional leak locations with custom sealing solutions. The appropriate method depends on the component, leak location, equipment condition, and whether the apparatus can safely remain energized during the work.

Many repairs can be performed while equipment remains energized and in service when site conditions and the specific repair permit it. This approach can reduce outage planning, disassembly, and operational disruption. TDS evaluates the equipment and leak location before recommending in-service work. Safety and the suitability of the repair method remain central to determining whether energized service is appropriate.

Yes. TDS addresses transformer gasket failures at locations such as butterfly valves, flapper valves, bushings, lids, flanges, and drain connections. Drain valve repairs focus on sealing oil leaks around the valve, its connections, and related gaskets. Technicians use targeted methods intended to repair the leaking component while limiting unnecessary equipment disassembly where conditions allow.

Yes. TDS designs, fabricates, and installs custom-engineered clamps and enclosures for difficult leak locations on transformers and other substation equipment. Solutions may thread onto studs or mount with set screws, then use rubber-based sealant to stop the leak. Depending on the application, installation can often occur without draining oil or dismantling the apparatus, and the enclosure can remain removable for future access.

Yes. Leak detection is used to identify the exact failure location before selecting a repair method. TDS can inspect areas such as gaskets, valves, bushings, flanges, and other transformer components. Accurate confirmation helps focus work on the leaking part rather than replacing or disassembling unaffected equipment. Free equipment surveys may document the facility, leak location, repair approach, and repair price.

Where conditions permit, TDS performs in-service oil leak repairs without removing the apparatus from service. Low-pressure sealing and cured-in-place gasket methods can reduce the need for traditional teardown, draining, and re-gasketing. Every application must be evaluated individually because equipment condition, leak location, access, safety requirements, and the selected repair method determine whether an in-service repair is suitable.

TDS provides services across the United States, Canada, and internationally. The company works with utility substations, power generation facilities, and other electrical infrastructure operators. Availability and travel requirements can vary by project. Customers can request a substation survey or discuss the equipment location with TDS to determine whether the team can support the required transformer maintenance or leak-sealing work.