Customization & Quality

Transformer
Customization and
Quality Control

Yingben manufactures customized distribution transformers below 35kV, including oil-immersed transformers, dry-type transformers and compact substations.

From technical review and drawing confirmation to manufacturing, routine testing and final inspection, each project is completed according to confirmed specifications.

Up to 35kV
50Hz / 60Hz
OEM & ODM Support
Routine Testing
Transformer engineering drawing review and customization
Dry-type transformer manufacturing and quality inspection

Transformer Configurations Customized for Your Project

Electrical parameters, materials, accessories and appearance can be configured according to your power system, installation conditions and project requirements.

Voltage and Capacity

Primary voltage, secondary voltage and rated capacity can be configured according to system and load requirements.

Frequency

Transformer designs are available for both 50Hz and 60Hz power systems.

Winding Material

Copper or aluminum windings can be selected according to technical requirements and project budget.

Losses and Impedance

No-load loss, load loss and impedance can be reviewed according to the project specification.

Vector Group and Tap Range

Vector group, tap range and voltage regulation method can be configured where technically applicable.

Accessories

Monitoring, protection, oil-level, pressure-relief and temperature control accessories can be selected.

Enclosure and Surface Finish

Enclosure type, protection level, color, anti-corrosion treatment and installation method can be customized.

Branding and Packaging

Customer logo, nameplate, labels, documentation and export packaging can be prepared according to order requirements.

✓

Final configurations are confirmed after technical review and drawing approval before production.

WHAT WE MANUFACTURE

Main Transformer Products Manufactured at Yingben

Yingben's Foshan manufacturing facility produces oil immersed transformers, cast resin dry type transformers and compact substations for utility, industrial and infrastructure power distribution projects.

Manufacturing Capability up to 35 kV Project-specific voltage, frequency, vector group, conductor and installation configurations can be supported according to technical requirements.

From Technical Requirements to Confirmed Design

Each transformer project follows a clear technical confirmation process before production begins.

1

Send Requirements

Provide voltage, capacity, frequency, quantity, application, applicable standard and destination country.

2

Technical Review

Our engineering team reviews electrical parameters, operating conditions, standards and project requirements.

3

Proposal and Quotation

A proposed configuration, technical response and commercial quotation are prepared for customer review.

4

Drawing Confirmation

Drawings, nameplate information, accessories and project documents are confirmed before manufacturing.

5

Production Release

Manufacturing begins after technical documents, commercial terms and final configurations are approved.

Quality Control During Manufacturing

Key materials, components and manufacturing processes are inspected according to confirmed technical specifications and production procedures.

1

Incoming Material Inspection

Key materials and components are checked according to approved specifications before production.

2

Core Processing Inspection

Core dimensions, stacking quality and assembly conditions are inspected during production.

3

Coil Winding Inspection

Winding dimensions, insulation, conductor material and electrical connections are checked.

4

Active-Part Assembly

Core, windings, insulation and internal connections are inspected before tank assembly.

5

Drying and Oil Processing

Insulation drying, oil processing, oil filling and sealing procedures are controlled.

6

Final Assembly Inspection

Accessories, terminals, grounding, nameplate and appearance are checked before testing.

Routine Testing Before Delivery

Routine tests are completed according to the transformer type, applicable standard and confirmed project specification.

✓ Winding resistance measurement
✓ Impedance voltage measurement
✓ Voltage ratio measurement
✓ Insulation resistance measurement
✓ Vector group verification
✓ Applied voltage withstand test
✓ No-load loss measurement
✓ Induced voltage withstand test
✓ No-load current measurement
✓ Oil leakage and sealing inspection
✓ Load loss measurement
✓ Nameplate and accessory inspection
Finished transformer routine testing before delivery
Transformer electrical testing and final inspection
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Our engineering team will provide a customized solution within 24 hours