Why Choose Diteli

• Up to 220kV transformer solutions
• IEC / ISO / CE certified manufacturing
• Custom transformer design for projects
• 24-hour engineering response

Request a Transformer Quotation

Not Sure Which Compact Substation Fits Your Project?

We understand that choosing the right transformer for your specific application can be challenging.

Our engineering team can provide:

  • Capacity selection recommendations
  • Layout design reference
  • Integrated configuration solutions
  • Budget quotation within 24 hours

Consult with our engineers

we are committed to driving innovation in the electrical equipment industry while consistently delivering efficient, safe, and reliable solutions.

Contact Us

Substation Applications

  • EPC
  • National Grid & Utility
  • Industrial&Commercial
  • Infrastructure Development
  • Distribution Networks

🌍 For EPC Power Projects EPC

Integrated Substation Solutions for Fast-Track Projects

For industrial parks, infrastructure projects, and renewable developments, project timelines and installation efficiency are critical. Our European-type, American-type, and Chinese-style prefabricated substations (up to 35kV) provide integrated, factory-assembled solutions for rapid deployment.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Why EPC Contractors Choose Us

  • Factory prefabrication for rapid on-site installation
  • Reduced civil engineering workload
  • Integrated design, lower coordination costs
  • Compliant with IEC standards
  • Supports project technical documentation and FAT
  • Suitable for overseas transportation and modular construction

⚡ For National Grid & Utility

Ideal for Urban Grid Expansion & Upgrades

For urban distribution expansion and grid modernization projects, prefabricated substations provide compact footprint, short installation time, and reliable operation.

Request a Project-Specific Technical and Price Proposal

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Designed for Utility Networks

  • Compact structure, saving land resources
  • Suitable for old-town renovation projects
  • Outdoor installation with high protection rating
  • Low-maintenance operation
  • Configurable with remote monitoring system

🏭 For Industrial&Commercial Plants

Independent Power Supply for Industrial & Commercial Sites

For factories, commercial complexes, and logistics parks, prefabricated substations provide independent, ready-to-operate power systems with simplified installation and reliable performance.

Request a Project-Specific Technical and Price Proposal

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End-User Advantages

  • Plug-and-play, shortening construction cycle
  • Safe enclosed structure
  • Adaptable to complex environments
  • Customizable capacity and configuration
  • Reduced overall construction cost

🏗 Infrastructure Development

High-Demand Integrated Substation Product

With global urbanization and renewable expansion, demand for compact substations continues to grow. We support distributors with stable manufacturing capacity and full technical documentation.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Distributor Advantages

  • Standardized product design
  • Fast quotation support
  • Flexible capacity options
  • Technical documentation and drawings support
  • After-sales assistance services

🔌 Power Distribution Networks

Designed for Renewable Integration & Infrastructure Growth

For solar farms, wind power stations, and infrastructure projects, prefabricated substations provide efficient grid connection and stable power distribution.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Renewable Project Benefits

  • Suitable for photovoltaic and wind power projects
  • High environmental adaptability
  • Corrosion- and dust-resistant design
  • Modular expansion capability

Not Sure Whether Dry-Type or Oil-Immersed Is Right for You?

We understand that choosing the right transformer for your specific application can be challenging.

Our engineers can provide:

  • Selection and technical support
  • Loss and efficiency calculations
  • Layout recommendations
  • Budget quotation within 24 hours

Speak With Our Transformer Engineer

we are committed to driving innovation in the electrical equipment industry while consistently delivering efficient, safe, and reliable solutions.

Contact Us

Dry Transformer Applications

  • EPC
  • National Grid & Utility
  • Industrial&Commercial
  • Infrastructure Development
  • Distribution Networks

🌍 For EPC Power Projects EPC

Safe & Flexible Power for Modern EPC Projects

For commercial complexes, metro systems, hospitals, data centers, and industrial parks, dry-type transformers are preferred due to their oil-free, fire-resistant, and environmentally friendly design. Our 66kV / 35kV / 10kV dry-type transformers are engineered for projects requiring enhanced safety and flexible installation.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Why EPC Contractors Choose Us

  • Compliant with IEC standards
  • Flame-retardant insulation system
  • Indoor installation without oil containment pit
  • Compact structure, space-saving
  • Suitable for underground or high-rise buildings
  • Supports project technical documentation and FAT

⚡ For National Grid & Utility

Enhancing Urban Grid Safety

For urban distribution networks and densely populated areas, safety is critical. Oil-free dry-type transformers significantly reduce fire risk, making them ideal for commercial centers, residential zones, and public infrastructure.

Request a Project-Specific Technical and Price Proposal

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Designed for Utility Applications

  • Oil-free design, reduced environmental risk
  • Low maintenance requirements
  • Excellent resistance to humidity and heat
  • Low-noise operation
  • Long-term stable operating performance

🏭 For Industrial&Commercial Plants

Reliable Power for Mission-Critical Facilities

For data centers, hospitals, commercial buildings, and precision manufacturing facilities, reliable and safe power supply is essential. Dry-type transformers can be installed close to load centers, reducing transmission losses and improving system efficiency.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Optimized for Critical Applications

  • Flame-retardant epoxy resin cast insulation
  • Excellent heat dissipation performance
  • Low partial discharge level
  • Low-noise design
  • Amorphous alloy energy-saving version available

🏗 Infrastructure Development

A High-Demand Product for Growing Urban Markets

With rapid urbanization and industrial development, demand for dry-type transformers continues to grow in commercial and industrial markets. We support distributors with stable supply and technical assistance.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Distributor Advantages

  • Flexible order quantities
  • Fast quotation response
  • Technical documentation and selection support
  • Customizable nameplate and branding
  • After-sales support

🔌 Power Distribution Networks

Eco-Friendly Transformer Solutions

Green building and renewable projects demand environmentally responsible and energy-efficient equipment. Amorphous alloy dry-type transformers significantly reduce no-load losses, supporting sustainable energy goals.

Sustainability Benefits

Talk to An Expert

Sustainability Benefits

  • Low no-load losses
  • Oil-free environmentally friendly design
  • Compliant with energy efficiency standards
  • Suitable for indoor and commercial environments
  • Reduced carbon emissions

Can we visit your factory before placing an order?

Absolutely. During your visit, you can review our production lines, testing laboratory, quality control process, and ongoing projects. We can also arrange technical discussions with our engineering team to review your project requirements in detail.

Kellen

Sales Director

Do you provide FAT (Factory Acceptance Test)?

Yes. We support full FAT inspection according to IEC standards. Clients or third-party inspectors can witness routine tests, type tests, and special tests as required.Complete test reports and documentation will be provided before shipment.

Li Xiaojing

lab Manager

Are you a manufacturer or a trading company?

We are a dedicated manufacturer specializing in power transformers. Our production facilities include transformer winding workshops, core assembly lines, metal fabrication units, and high-voltage testing laboratories.We maintain full control over manufacturing, quality inspection, and factory testing to ensure long-term reliability for utility and industrial applications.

David

Technical Director

What is your approach to project delivery and timelines?

Production schedules are defined after technical confirmation and contract approval.Our planning team coordinates raw material procurement, manufacturing stages, and final testing to align with project milestones.For time-sensitive EPC projects, we evaluate priority production scheduling to support contractual deadlines.

Michael Liu

Production & Quality Manager

What warranty and after-sales support do you provide?

Our standard warranty terms range from 12–24 months depending on project type and contractual agreement.During the warranty period, we provide remote technical support and necessary spare parts. For large projects, extended warranty and long-term service agreements can be discussed.Our objective is to support the full lifecycle of the equipment.

CoCo

International Business Director

Still Have Questions?

Our engineering team can help you choose the right transformer solution. Send your requirements and receive a customized proposal within 24 hours.

Director

Technical

Oil Transformer Applications

  • EPC
  • National Grid & Utility
  • Industrial&Commercial
  • Infrastructure Development
  • Distribution Networks

🌍 For EPC Power Projects

Engineered for Large-Scale Power Projects

From substation construction to transmission expansion, EPC contractors require transformers that meet strict technical standards, tight delivery schedules, and complex project specifications. Our 220kV / 110kV / 35kV oil-immersed power transformers are engineered to support large-scale utility projects worldwide.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Why EPCs Choose Us

  • Complies with IEC / IEEE / GOST / GB standards
  • Provides complete project technical documentation package
  • Supports Factory Acceptance Testing (FAT)
  • High short-circuit withstand capability design
  • Suitable for overseas transportation and on-site installation
  • Stable production cycle to ensure project progress

⚡For National Grid & Utility

Built for Long-Term Grid Reliability

Grid operators require transformers that deliver stable performance for decades under continuous load and varying environmental conditions. Our high-voltage oil-immersed transformers ensure reliable transmission and distribution performance.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Designed for Utility Demands

  • Low no-load and load losses, reducing lifecycle costs
  • Optimized cooling system design
  • Strong mechanical shock resistance
  • Optional online monitoring system
  • Design life of 25–30 years
  • Suitable for extreme climate environments

🏭 For Industrial&Commercial Plants

Stable Power for High-Demand Industrial Operations

Industrial facilities cannot afford voltage instability or unexpected downtime. Our 35kV / 22kV / 11kV oil-immersed and amorphous alloy transformers provide reliable power for factories, mining sites, data centers, and manufacturing plants.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Optimized for Industrial Applications

  • High short-circuit withstand capability
  • Excellent overload capacity
  • Reduces harmonic impact
  • Amorphous alloy energy-saving solution
  • Compact structural design
  • Supports customized configurations

🏗 Infrastructure Development

A Reliable Manufacturing Partner

Distributors require stable supply, competitive pricing, and strong technical support. We provide flexible manufacturing solutions to support partners in expanding their local markets.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Distributor-Focused Advantages

  • Flexible minimum order quantity
  • Stable production capacity guarantee
  • Quick quotation response
  • Complete technical documentation support
  • Customizable brand labeling
  • After-sales service assistance

🔌 Power Distribution Networks

Designed for Renewable & Infrastructure Expansion

Modern power systems demand transformers capable of supporting renewable integration and infrastructure expansion. Our transformers are engineered for solar farms, wind projects, and large-scale infrastructure developments.

Request a Project-Specific Technical and Price Proposal

Talk to An Expert

Adapted to Harsh & Dynamic Conditions

  • Suitable for photovoltaic and wind power projects
  • High overload capacity design
  • Optional anti-corrosion coating
  • Adaptable to desert, coastal, and high-humidity environments
  • Stable performance under load fluctuations

Not Sure Which Transformer Fits Your Project?

We understand that choosing the right transformer for your specific application can be challenging.

We can offer you:

  • Product selection technical support
  • Layout suggestions
  • Loss and Efficiency Calculation
  • Budget quotation within 24 hours

Speak With Our Transformer Engineer

we are committed to driving innovation in the electrical equipment industry while consistently delivering efficient, safe, and reliable solutions.

Contact Us

Why Choose Diteli

• Up to 220kV transformer solutions
• IEC / ISO / CE certified manufacturing
• Custom transformer design for projects
• 24-hour engineering response

Request a Transformer Quotation

30+ years

of Industry Experience

36,000 m2

Factory Area

30,000,000 KVA

Annual Productivity

30+

Country of Export

220KV

High-Voltage Power Distribution

Can I Visit Your Factory?

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1-"Yes, you are warmly welcome. Please contact our sales team in advance by email or phone, and we will arrange the visit and transportation plan for you.."

1-Jenny Wilson

1-Vice President

2-"Yes, you are warmly welcome. Please contact our sales team in advance by email or phone, and we will arrange the visit and transportation plan for you.."

2-Jenny Wilson

2-Vice President

3-"Yes, you are warmly welcome. Please contact our sales team in advance by email or phone, and we will arrange the visit and transportation plan for you.."

3-Jenny Wilson

3-Vice President

Comprehensive Full-Cycle Service

Pre-sales: 24h quick response
Mid-sales: Fast delivery
After-sales: Technical & after-sales support

Request a Quote Now

Diverse transformer types,ISO, CE, CQC certified Customized industry solutions