High-voltage power transformer and electrical substation for utility industrial and new energy projects
Transformer & Power Distribution Manufacturer

Power Equipment for Grid, Industry & New Energy

DHDL manufactures transformers, substations and power distribution equipment engineered for utility, industrial and renewable energy projects worldwide.

2011 Established
30,000m²+ Manufacturing Base
330+kV Voltage Range
5 Major Product Lines

Power Equipment Range

Built for distributors, EPC contractors, utilities, industrial parks, renewable energy developers and overseas power infrastructure projects.

Designed Around Real Project Scenarios

Instead of selling a single device only, DHDL helps match transformers, cabinets, substations, storage and charging equipment to the application.

Integrated Power Distribution for New Energy & Industrial Loads

Instead of selling a single device only, DHDL helps match transformers, cabinets, substations, storage and charging equipment to the application.

Transformer + Switchgear Integration
IEC / ANSI Standard Adaptation
High Temperature & Humidity Design
Export Packing & Technical Files

Manufacturing Strengt

Factory Controlled
Project Ready.
Export Delivered.

DHDL controls core manufacturing procedures from material preparation, winding, vacuum drying and assembly to routine testing, helping overseas buyers reduce quality fluctuation and delivery risk.

  • Core processes completed in-house for stable product consistency
  • Standardized production flow for batch orders and long-term supply
  • Custom voltage, frequency, winding material, logo and nameplate options
  • Export packaging, loading optimization and technical document support
10-35kV

Core Distribution Range

15-25D

Typical Lead Time

OEM/ODM

Brand Customization

100%

Routine Factory Tests

We Don’t Just Sell.We Engineer & Verify.

Long-term transformer reliability is decided by internal process control, not only by visible specifications. DHDL focuses on stable insulation, winding process, loss control, sealing and routine testing before shipment.

— Quality Control

Long-term transformer reliability is decided by internal process control, not only by visible specifications. DHDL focuses on stable insulation, winding process, loss control, sealing and routine testing before shipment.

  • Incoming inspection for silicon steel, conductors and insulation materials
  • Process control covering core loss, winding, vacuum drying and assembly
  • Routine tests including ratio, DC resistance, insulation, withstand voltage and loss tests
  • Technical files, test reports, installation guidance and remote support after delivery
International Project Matching

Adapted to Standards.Built for Local Conditions.

From hot African project sites to humid Southeast Asian environments and North American distribution requirements, DHDL can customize equipment based on standards, climate and operating scenario.

Standard Adaptation

IEC, ANSI and project-specific technical requirements.

Climate Design

High temperature, high humidity, dust, corrosion and outdoor conditions.

Custom Branding

Logo, color, nameplate language and OEM packaging options.

Export Coordination

FOB, CIF, CFR, EXW support and loading plan optimization.

IEC

International

ANSI

North America

50/60Hz

Frequency

Cu / Al

Winding

OEM / ODM

Cooperation

Cooperation

Trade Terms

Thailand

8MVA Distribution Transformer Project

Industrial park power distribution project designed for high temperature & humidity operation.


Capacity: 8000kVA
Voltage: 33kV
Standard: IEC

Ethiopia

20 × 3.15MVA Power Distribution Project

Batch supply for industrial and regional distribution systems in hot, dusty outdoor conditions.


Total: 63MVA
Quantity: 20 units
Delivery: 50 day

Uzbekistan

S-45000/110 Power Transformer

High-voltage grid upgrade project requiring insulation reliability, low losses&high transport support.


Capacity: 45MVA
Voltage: 110kV
Cooling: ONAN / ONAF

Ukraine

10kV Distribution Transformer Batch Supply

80 units for urban distribution and power infrastructure with strict consistency requirements.


Range: 100-1250kVA
Quantity: 80 units
Standard: IEC

United States

Single-phase Pole Mounted Transformers

Batch supply for rural grid upgrades and residential distribution under ANSI / IEEE requirements.


Range: 5-50kVA
Voltage: 13.2kV
Quantity: 60 units

Project Cases

Delivered Across.Global Power Markets.

Selected power distribution and transformer projects for industrial parks, infrastructure, grid upgrades and rural distribution networks.

Send Requirements

Ready to Build Your
Power Project?

Tell us your capacity, voltage combination, frequency, standard, installation environment and quantity. Our team will help confirm the right transformer or complete power distribution solution.

Recommended information: kVA / MVA, HV & LV voltage, connection group, impedance, standard and application.For substations or switchgear: single-line diagram, IP rating, site conditions and project schedule.

    Send an Inquiry

    QUALITY & COMPLIANCE

    Certified Quality. Verified Performance.

    DHDL power equipment is supported by product testing, type test reports and a certified quality management system, helping ensure reliable performance for power distribution, industrial and overseas projects.

    Cooperative Clients

    Trusted by Our Partners

    Building long-term partnerships through reliable power equipment, engineering support and consistent project delivery.

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