High-Performance Transformers
Global Power Solutions

Empowering your vision with collaborative engineering and flexible design,
tailored precisely to meet specific system integration requirements.

Capability & Speed

Quality Control & Testing

OEM & ODM

Smart & Customized Manufacturing

ALL
Distribution transformer
Power Transformer
Renewable Energy Transformer
Transformer Components

Process Manufacturing

Core Building (Core Lamination)
  • Cutting, stacking, and clamping of high-grade silicon steel sheets to form the transformer core.
  • Step-lap or mitred joint designs are used to reduce core losses.
Winding (Coil Winding)
  • Winding of high-voltage (HV) and low-voltage (LV) coils using copper or aluminum conductors.
  • Insulation materials (paper, pressboard, or enamel) are applied between layers and turns.
Core-Coil Assembly (Active Part Assembly)
  • Assembling the wound coils onto the core legs.
  • Inserting insulating cylinders, spacers, and clamping structures.
Vacuum Drying (Core & Coils Drying)
  • Placing the assembled active part in a vacuum drying oven to remove moisture from insulation materials.
Tanking (Active Part Insertion into Tank)&Vacuum Oil Filling
  • Lowering the dried core-coil assembly into the transformer tank.
  • Installing tank covers, gaskets, and bushings.
  • Evacuating air from the transformer tank under high vacuum.
  • Filling with pre-treated, dehydrated, and degassed insulating oil.
Final Assembly & Testing
  • Mounting accessories such as conservator tank, silica gel breather, Buchholz relay, pressure relief device, thermometers, radiators/coolers, and tap changer (if any).
  • Routine tests: turns ratio, winding resistance, no-load loss, load loss, impedance voltage, insulation resistance, induced overvoltage withstand, etc.
  • Type tests (if required): lightning impulse, temperature rise, short-circuit withstand.

Capability & Speed

Massive throughput meets agile execution. Our scalable production lines ensure we can rapidly absorb volume orders while maintaining elite delivery precision for global utilities.

Annual Output:

20,000–36,000 Units on a Single Shift (10–2500kVA)

Annual Capacity:

25,000-35,000 units (based on single-shift standard models)

Flexible Changeover: 

Rapid switching between different capacities/specs with a changeover times 1.5 hours.

Industry Leadership: 

A toolkit of essential widgets and features that will supercharge your workflow

Standard Models (Distribution Type):

15–20 Days(fastest)

Custom/Special Models:

30-45 Days

Power transformer:

60-90 Days

Competitive Price:

Leveraging China's complete industrial chain and high-level smart manufacturing.

Quality Control & Testing

  • Triple Dielectric Tests
    Simulating lightning strikes, switching overvoltages, and long-term high-voltage operation to ensure zero breakdown and zero downtime in extreme environments.

  • Short-circuit Impedance & Transformation Ratio Tests
    Validating physical strength and conversion precision to ensure the structure remains undisplaced and undamaged during grid fluctuations.

  • DC Resistance Measurement
    Eliminating hidden overheating risks at connections to guarantee continuous and robust power transmission.

  • No-load Loss Test (Iron Loss)
    Utilizing high-permeability materials and precision cutting technology to significantly slash standby energy consumption and reduce operating costs.
  • Load Loss Test (Copper Loss)
    Optimizing winding efficiency to maintain the highest energy conversion rate under full-load operation.

Partial Discharge Test (PD Test)
Capturing microsecond-level invisible insulation defects to eliminate potential failures before shipment, guaranteeing a long-term service life.

OEM & ODM Manufacturing

Press play to explore our smart production lines. We don't just build transformers; we provide full-scale OEM/ODM strategic partnerships backed by advanced automation, strict global certifications, and a bulletproof supply chain.
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Efficient Delivery

Cellular manufacturing supports parallel production across multiple specs and voltages, ensuring on-time delivery for large-scale orders.

Agile Response

Smart scheduling and rapid factory-engineer support enable flexible, mid-production design changes.

End-to-End Control

Total transparency from raw materials to final testing guarantees traceable quality and zero-risk delivery.

Company Certificate

OEM & ODM Service Process

1、Requirement Definition
Receive customer requirements (design drawings / specifications / functional targets / target market standards).
2、Technical Review & Proposal
Our engineering team conducts a feasibility study, proposes optimization options and issues a detailed quotation.
3、Prototyping & Testing
Build prototypes against the confirmed scheme and perform rigorous type tests and performance verification in our in-house laboratory.
4、Order Confirmation & Mass Production
After contract signing, launch an efficient supply-chain and manufacturing flow to guarantee on-time delivery.
5、QC & Logistics
Implement strict quality inspection throughout (third-party inspection), provide secure packaging and assist in worldwide logistics arrangements.
6、After-Sales Support
Offer continuous product technical support and warranty service.

Customized Manufacturing

Advanced automation meets flexible engineering. We manufacture high-performance transformers tailored precisely to your brand and utility standards.

Precision Machining
By integrating CNC transverse shearing and laser cutting technologies, we achieve automated stacking and precise clamping.
This guarantees high precision and ultra-low losses, locking in premium energy efficiency right from the source.
Automated Coil Winding
Utilizing closed-loop tension control and automated insulation placement, complemented by an AI vision inspection system.
This advanced automation virtually eliminates human error, ensuring unmatched consistency in winding electrical performance and dielectric strength.
Insulation Process
Equipped with an integrated VPI (Vacuum Pressure Impregnation) and high-temperature curing system, this process drastically enhances dielectric strength and structural integrity—ensuring our transformers effortlessly withstand harsh environments and extreme thermal stress.
Assembly & Testing
A dust-free assembly environment, paired with automated welding and intelligent full-parameter test benches, guarantees that 100% of units pass rigorous Factory Acceptance Testing (FAT) before shipment.
Digital & Intelligent Management
Powered by MES, 5G, and Digital Twin technologies, our entire production process features fully transparent and traceable data—guaranteeing uncompromised quality and on-time delivery for every order.

Our Products

As a reliable electrical equipment manufacturer, SH POWER provides solutions for key components in energy and power distribution systems. Our product portfolio includes transformers, hardware and fittings, composite insulators, and electrical switchgear, supporting modern electric power distribution networks.

Contact Us

If you have any questions about our products, feel free to contact us at any time.

We have sales teams covering more than 30 countries worldwide, with branch offices in the United States, Saudi Arabia, and Indonesia.

You can also reach us via our social media channels
SH POWER
To be an excellent company with a lasting foundation and become a widely trusted model enterprise of lasting excellence in the global power industry.
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