Transformer manufacturing. Global supply.
Qingdao, China
◎ English⌄
EnglishSpanishComing soonPortugueseComing soonFrenchComing soonRussianComing soonItalianComing soonGermanComing soonDutchComing soonArabicComing soonKoreanComing soonJapaneseComing soonHindiComing soonThaiComing soonTurkishComing soonVietnameseComing soonIndonesianComing soon
← Back to overview

JIADEST / TRANSFORMER MANUFACTURING

From magnetic core.
To final acceptance.

Purpose-built equipment. Skilled assembly. Electrical inspection. Explore the production operations behind our transformers and the technical records to review for your order.

Explore the production process ↓
Transformer winding workshop with production equipment and a marked access aisle
ORIGINAL FACTORY PHOTOGRAPH / WINDING WORKSHOP

PRODUCTION / PROCESS / QUALITY

One production story.
A route matched to the design.

Factory inspection & testing
  1. 01materials & component preparation
  2. 02core cutting & stacking
  3. 03winding & insulation build
  4. 04assembly & connections
  5. 05drying & insulation processing
  6. 06electrical inspection & acceptance

OIL-IMMERSED TRANSFORMERS

Core-and-coil assembly. Drying. Final equipment.

Confirm the active-part assembly, drying, tanking and oil-filling procedure, sealing checks and final test scope for the selected oil-immersed design.

Explore oil-immersed equipment

DRY-TYPE TRANSFORMERS

Winding design defines the insulation route.

Cast-resin and other dry-type constructions have different treatment requirements. Agree the insulation system, processing method and applicable dielectric and partial-discharge tests.

Explore dry-type production

The photographs show selected factory operations. Detailed sequencing and process settings follow the approved product design.

01 / MATERIALS & COMPONENT PREPARATION

Quality starts with the materials.

Material inspection and component preparation support the winding, insulation and mechanical parts of the transformer. The material specification forms part of the order review.

QUALITY FOCUS

  • Conductor and insulation specification
  • Material identification and incoming inspection
  • Component dimensions and drawing requirements

REVIEW WITH YOUR ORDER

Material records and component inspection requirements

02 / CORE CUTTING & STACKING

Build the magnetic circuit.

Lamination preparation and core stacking establish the magnetic circuit. Our photographs show the cutting equipment and robotic lamination-handling cell.

QUALITY FOCUS

  • Steel grade and lamination dimensions
  • Core geometry and joint arrangement
  • Stacking, clamping and assembly dimensions

REVIEW WITH YOUR ORDER

Core specification and dimensional checks

03 / WINDING & INSULATION BUILD

Precision from conductor to coil.

Foil winding and conductor winding serve different winding designs. Dedicated equipment and operators form the coils and build the insulation system.

QUALITY FOCUS

  • Conductor size and winding arrangement
  • Turn count, insulation build and coil dimensions
  • Lead identification and connection positions

REVIEW WITH YOUR ORDER

Winding specification and in-process inspection requirements

04 / ASSEMBLY & CONNECTIONS

Skilled hands. Visible workmanship.

Technicians position the transformer components, assemble terminal boards and secure connections. These close-up photographs show open-frame industrial transformer assembly.

QUALITY FOCUS

  • Clearances and insulation supports
  • Lead routing and terminal identification
  • Clamping and fastening requirements

REVIEW WITH YOUR ORDER

Approved assembly drawings and connection checks

05 / DRYING & INSULATION PROCESSING

Match the process to the insulation system.

Drying ovens and sealed processing chambers form part of the production equipment. The treatment route is selected for the transformer construction and its specified insulation system.

QUALITY FOCUS

  • Oil-immersed, cast-resin or other dry-type construction
  • Specified treatment cycle and process settings
  • Handling between treatment and final assembly

REVIEW WITH YOUR ORDER

Product-specific process specification and treatment records

06 / ELECTRICAL INSPECTION & ACCEPTANCE

Connect the equipment to the test record.

Electrical checks are carried out at the transformer terminals. Agree the test schedule, acceptance criteria and documentation for the selected transformer before manufacture.

QUALITY FOCUS

  • Unit identification and instrument references
  • Specified measurement and dielectric tests
  • Measured results against agreed acceptance criteria

REVIEW WITH YOUR ORDER

Order-specific inspection and test schedule

FACTORY ACCEPTANCE / TEST DOCUMENTATION

Measurements that matter to your project.

Agree the test programme before production. The applicable standard, transformer construction, voltage class and technical specification determine the required routine, type and special tests.

Electrical performance

Winding resistance, ratio, no-load loss, load loss and impedance.

Insulation performance

Specified AC withstand tests and partial-discharge measurement where applicable.

Traceable acceptance

Transformer serial number, test conditions, measured results and agreed criteria.

Explore the test schedule & report fields

A report linked to your transformer.

  • Model, serial number, rated power, voltages and frequency
  • Applicable standard, test method and agreed acceptance criteria
  • Instrument identification, calibration references and test conditions
  • Measured results, conclusions, test date and authorized sign-off

THE FACTORY BEHIND THE PROCESS

Organized workspaces.
People at the equipment.

Workshop space, organized component staging and attended production stations support the manufacturing flow.

DESIGN / MANUFACTURE / TEST SPECIFICATION

Standards matched to the transformer duty.

Applicable IEC 60076 requirements form the agreed basis for power-transformer design, manufacture and testing. The technical agreement identifies the applicable parts, editions and acceptance criteria.

Transformer scopeStandard basisTechnical review
Oil-immersed power & distribution transformersApplicable IEC 60076 series partsRatings, winding connections, losses, impedance, insulation and specified tests
Dry-type power transformersIEC 60076-11 within its scopeInsulation system, thermal design, dielectric and partial-discharge test requirements
Industrial control transformersIEC 61558-1 and IEC 61558-2-2 where applicableControl duty, winding voltages and the appropriate safety and product requirements

For projects specifying IEEE/ANSI or destination-specific requirements, submit the required standard for engineering review.

EXPORT PROJECTS / DOCUMENTATION & DELIVERY

Plan the handover.
Prepare for the destination.

Factory acceptance, packing and transport requirements are reviewed together. Tell us the destination and installation conditions so that documentation and delivery scope can be agreed before dispatch.

01 / DELIVERY REVIEW

Technical handover

Agree the general arrangement drawing, nameplate information, connection details and required test reports.

02 / DELIVERY REVIEW

Packing & handling

Confirm transport dimensions, mass, lifting points, packing method and protection for the chosen route.

03 / DELIVERY REVIEW

Delivery coordination

Define quantity, destination, shipping terms, unloading arrangements and site responsibilities in the order.

JIADEST / LET’S TALK POWER

Planning a power project?

Share your requirements when you’re ready. Our team can help with equipment selection.

Need to share more? Use the detailed inquiry form