Transformer Repair for Dry Type and Liquid Filled Units

Larson Electronics supports transformer repair, rebuild and replacement work for dry type and liquid filled transformers. When the electrical core is still serviceable but the tank, cabinet, radiator or enclosure is deteriorated, damaged or no longer suitable for service, we can build new transformer components and repackage the unit into a new assembly.

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Repair support for dry type, liquid filled, cabinet style, clamshell and pole top transformer units.
New tanks, radiators, cabinets, enclosures and fabricated replacement components.
Coil replacement, core transfer and rebuild options based on inspection and project requirements.

For faster quoting, provide transformer photos, nameplate data, KVA, voltage, phase, tank condition, radiator condition, oil type, drawings and the required delivery schedule.

Transformer Repair and Rebuild Capabilities

Tank and Radiator Replacement

For liquid filled transformers with functional cores and coils, Larson Electronics can manufacture new tanks, radiators and cabinets to replace corroded, leaking or physically damaged housings.

Dry Type Transformer Repair

Dry type transformer work may include enclosure replacement, terminal compartment repairs, coil replacement, mounting changes, inspection support and rebuild work based on unit condition.

Liquid Filled Transformer Rebuilds

Liquid filled repair options may include moving existing coils and core assemblies into new tanks, replacing radiators, fabricating cabinet style housings and rebuilding pole top transformer assemblies.

Transformer Repair Specifications

Repair Area	Available Work	Typical Application
Dry type transformers	Enclosure repair, replacement cabinets, coil replacement, terminal compartment work and inspection-based rebuild support	Industrial facilities, commercial power systems, manufacturing plants and replacement projects where the existing footprint must be maintained
Liquid filled transformers	Tank replacement, radiator replacement, cabinet repair, bushing support, gasket replacement, coil replacement and core transfer work	Aging pad mount, pole top and custom liquid filled transformer units with deteriorated tanks or cooling assemblies
Radiators	New transformer radiator panels, cooling sections and replacement radiator assemblies manufactured to project requirements	Units with rusted, leaking, undersized or physically damaged cooling sections
Transformer tanks	New fabricated tanks including cabinet style, clamshell style and pole top configurations	Transformers with functional internal assemblies but corroded or damaged external housings
Coils	Coil inspection, replacement and rebuild support when the internal electrical assembly is damaged or no longer suitable for service	Transformers with failed windings, heat damage, electrical faults or failed insulation systems
Lead time considerations	Tank and radiator replacement may be completed within a few weeks when the internal unit is serviceable. Coil replacement may require additional time based on size, materials and design requirements.	Emergency replacement planning, plant shutdowns, utility support, production recovery and scheduled maintenance windows
Custom fabrication	Built-to-order tanks, radiators, cabinets, enclosures, lifting provisions, access panels and mounting arrangements	Legacy transformer repairs, obsolete equipment, custom footprints and site-specific replacement constraints

When Transformer Repair Makes Sense

Functional Core with Damaged Housing

If the transformer still functions but the tank, cabinet or radiator is rusted, leaking or structurally deteriorated, rebuilding the housing may restore the unit faster than sourcing a full replacement.

Obsolete or Hard-to-Replace Units

Repair may be practical when the existing transformer has a custom footprint, uncommon voltage, long replacement lead time or site-specific mounting requirements.

Schedule-Sensitive Replacement

Moving serviceable coils into a new tank with a new radiator can shorten recovery time compared with a complete transformer replacement. Coil replacement generally requires more time.

Information That Helps Us Quote Quickly

Nameplate and Electrical Data

Send KVA, primary voltage, secondary voltage, phase, frequency, impedance, temperature rise, insulation class, oil type and any available test reports.

Photos, Drawings and Damage Details

Provide photos of the full transformer, nameplate, bushings, tank, radiator, cabinet, leaks, rust, lifting points, mounting base and any failed components.

Schedule and Site Requirements

Include quantity, location, urgency, shutdown window, required delivery date, footprint limits, access restrictions and whether the unit must match an existing installation.

Request a Transformer Repair Quote

Larson Electronics can evaluate dry type and liquid filled transformer repair needs including tank replacement, radiator fabrication, coil replacement and complete rebuild support.

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