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Manufacture · Repair · Onsite · Filtration

We build them. We also keep them running

Most transformer manufacturers stop at the gate. We repair, maintain and filter — including units built by somebody else — which is why a failed transformer does not have to become a replacement transformer.

Core and coil assembly of a three-phase transformer clamped and braced on the shop floor at Tula Trans Electricals

Our services

HV and LV disc windings being assembled onto the core limbs by technicians at Tula Trans Electricals, Surat

01 — Transformer Manufacturing

Built from core to tank, under one roof

We manufacture distribution, power and dry-type transformers across the 11 kV to 66 kV range at our GIDC Sachin works. Core cutting, winding, assembly, tanking and testing all happen in-house, which is why we can hold a BIS licence to IS : 1180 rather than sub-contracting the parts that carry the certification.

What's included

  • Core cutting, stacking and coil winding in-house
  • Tank fabrication, painting and oil filling
  • Routine testing to IS : 1180 before dispatch
  • Full test certificate set with every unit
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Core and coil assembly of a three-phase transformer clamped and braced on the shop floor at Tula Trans Electricals

02 — Transformer Repair & Rewinding

Failed units returned to service, not replaced

We repair and rewind transformers of all makes, not only our own. A failed unit is stripped, diagnosed and rebuilt with new windings where required, then re-tested to the same standard as a new build before it goes back to site.

What's included

  • Fault diagnosis and complete teardown inspection
  • HV and LV rewinding to original or uprated specification
  • Tank repair, gasket replacement and repainting
  • Post-repair routine testing before dispatch
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Two oil-cooled transformers on concrete plinths in a fenced substation compound at first lightIllustration

03 — Onsite Maintenance

Our team at your substation

Scheduled and breakdown maintenance carried out at your site, so units that cannot be moved do not have to be. Our engineers travel with the tooling and instruments needed to inspect, service and recommission a transformer in place.

What's included

  • Scheduled preventive maintenance visits
  • Breakdown attendance and onsite fault finding
  • Bushing, gasket and accessory replacement
  • Recommissioning checks before re-energising
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Oil filtration pipework, braided hoses, valves and a pressure gauge alongside a transformer tankIllustration

04 — Transformer Oil Filtration

Restore dielectric strength without a shutdown replacement

Transformer oil degrades with moisture, particulates and dissolved gas long before the unit itself fails. We filter and dehydrate oil onsite to restore its dielectric strength, which is the cheapest life-extension available on any transformer.

What's included

  • Onsite oil filtration and vacuum dehydration
  • Moisture and particulate removal
  • Dielectric strength (BDV) testing before and after
  • Oil top-up and complete oil replacement
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Coverage

All makes, not just ours

Repair, rewinding, onsite maintenance and oil filtration are offered on transformers of any manufacturer in the 11 kV to 66 kV range. Tell us the make, the rating and the fault.

Voltage
11 – 66 kV
Makes
All
Location
Works / Onsite

Enquiries

Got a transformer down?

Send us the make, rating and what happened. For breakdowns, call the mobile number directly — it is the fastest route to an engineer.

Request a Quote+91 98251 93068