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Transformer & Switchgear Repair & Overhaul

Restore reliability and extend asset life — on-site and workshop repair of transformers, breakers and switchgear.

Transformer & Switchgear Repair & Overhaul — Tajalli Tech

From a leaking radiator to a seized breaker mechanism — repaired, tested and put back in service, with documented results.

Repaired & recommissioned On-site & workshop

What we provide

  • Transformer bushings, gaskets, radiators & spouts
  • Oil filtration, top-up & leak arrest
  • ACB / VCB overhaul — contacts, springs & mechanism
  • Breaker mechanism repair & genuine spares
  • On-site fault rectification & breakdown support
  • Post-repair testing (DGA, IR, CRM, timing)

Why choose Tajalli Tech for repair and overhaul

At Tajalli Tech, we provide comprehensive on-site and workshop repair and overhaul of transformers, breakers and switchgear, designed to restore reliability and extend the working life of your assets. On transformers, our engineers undertake radiator and gasket leak repair, bushing replacement, tap-changer servicing, active-part inspection, re-gasketing, and oil top-up with filtration. On switchgear and breakers, we carry out mechanism overhaul, contact replacement, arc-chute inspection and re-lubrication. Work is completed on-site wherever access allows, with equipment brought into our workshop only when a full strip-down is required.

What you get

On completion of the repair, you receive a documented report presenting before-and-after test values that confirm the equipment is fit to re-energise — insulation resistance, tan-delta and dissolved-gas analysis on transformers, and contact resistance and open/close timing on breakers — prepared in accordance with applicable IS/IEC standards, including IS 1866, IEC 60076 and IEC 62271.

Does the equipment need to be sent to your workshop?

In most cases, no. Leak repairs, bushing replacement, tap-changer servicing and breaker overhauls are carried out on-site wherever access permits, and we bring equipment into the workshop only when the active part must be removed. Our team mobilises across Lucknow, throughout Uttar Pradesh and pan-India.

How is the integrity of the repair confirmed?

Post-repair testing is an integral part of every overhaul. On breakers we record contact resistance and timing before and after the work, and on transformers we carry out insulation resistance, tan-delta and dissolved-gas analysis. Equipment is signed off only once all measured values fall within the applicable acceptance limits.

Ready to get started?

Get a free assessment and quote from our engineering team.