Core stacking
A laminated magnetic core takes shape in a three-limb arrangement.
LAMINATIONS / THREE-LIMB CORE
MANUFACTURING PROCESS
Inside the build.
From core to completion.
Follow an illustrative oil-filled transformer assembly, from core stacking and winding to tanking, fittings, testing and dispatch.
Explore the 3D buildOur Howrah works
ENGINEERING IN MOTIONExplore six illustrative stages.
An illustrative oil-filled transformer sequence. Scroll through six stages, or choose a stage to explore. This model does not depict the dry-type product range.
Preparing the 3D view…OIL-FILLED TRANSFORMER · CONCEPTUAL MODEL
THE BUILD SEQUENCE 01 / 06
LV & HV windings
Low- and high-voltage windings are formed and positioned around the core limbs.
WINDING / INSULATION / POSITIONINGCore-coil assembly
The top yoke closes the magnetic path. Clamps and leads complete the active-part assembly.
TOP YOKE / CLAMPS / LEADSDrying & tanking
The active part is prepared for drying, then lowered into the transformer tank.
ACTIVE PART / PREPARATION / TANKINGFittings & cooling
The cover, bushings and cooling fittings are added. Accessories depend on the specified design.
COVER / BUSHINGS / COOLINGTesting & dispatch
The completed transformer is prepared for routine testing and dispatch. Requirements are confirmed for the project.
ROUTINE TESTING / FINAL PREPARATIONScroll to assemble · select a stage below
Illustrative sequence, not an OSTL process specification. Core material, winding material, cooling and accessories are confirmed against the project brief. Copper-colour windings and CRGO-style laminations are visual examples only.
INSIDE THE FACTORY
Core-coil assemblyA three-phase core-coil assembly at our Howrah works: windings on the core, held in the clamping frame. A real photograph from the factory floor.See quality & testing ↗
PRODUCTION FLOOR
Finished unitsFinished distribution transformers on the production floor of our Howrah works. A real photograph.Distribution transformers ↗
DISPATCH
Loading for dispatchAfter testing, a power transformer is lifted onto road transport by crane, with the crew guiding the load. A real photograph from our works.See quality & testing ↗LET’S TALK ABOUT YOUR PROJECT
A clear specification.
A better conversation.
Share your rating, voltage, quantity and requested dispatch timeline.