Cast Resin Dry-type Transformer Manufacturers & Exporter

Global Engineering Excellence in High-Performance Epoxy Resin Vacuum Casting Power Infrastructure & Smart Substation Solutions

Enterprise Technical Authority & Infrastructure

Setting New Benchmarks in High-Precision Electrical Engineering & Turnkey Global Supply Systems.

Henan Pirooz Power Co., Ltd. is a comprehensive electrical power equipment manufacturer integrating research and development, engineering design, production, sales, and after-sales service. The company specializes in customized solutions for power transformers and complete sets of transmission and distribution equipment, providing reliable and efficient electrical products for global energy infrastructure projects.

The company operates a modern manufacturing facility with a complete production system covering product design, precision machining, assembly, and full electrical testing. Equipped with advanced production lines and strict quality control procedures, Henan Pirooz Power Co., Ltd. ensures that all products meet international standards and customer-specific technical requirements, maintaining high performance, safety, and durability.

E-E-A-T Compliance Framework

All dry-type cast resin units undergo strict partial discharge evaluation (<5pC) in a modern shielding lab, ensuring long operational life and total compliance with IEC 60076-11, IEEE C57.12.01, and CE certifications.

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Core Engineering Portfolio

Our core product range includes 10kV–35kV oil-immersed power transformers (such as S11, S13, S14, and S20 series), dry-type transformers (including SCB10, SCB11, SCB13, and SCBH15 series), as well as on-load tap-changing transformers, rectifier transformers, and furnace transformers designed for specialized industrial applications. These products are widely used in power utilities and heavy industries requiring stable and efficient energy distribution.

Integrated System Architecture

In addition to transformers, the company also provides complete electrical system solutions, including high and low voltage switchgear, European-style compact substations, American-style pad-mounted substations, and underground distribution substations. These integrated solutions are widely applied in power grid construction, industrial manufacturing, mining, metallurgy, petrochemicals, transportation systems, and renewable energy projects.

35kV

Maximum Voltage Rating

<5pC

Partial Discharge Threshold

100%

Fully Automated Testing

Class H

Advanced Insulation Tech

Global Enterprise Procurement Dynamics

Solving core engineering challenges through structured supply networks, ultimate reliability, and high-performance safety.

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Total Risk Mitigation

Modern EPC procurement agents prioritize severe fire risk prevention, environment-friendly design, and complete moisture protection. Our solid cast resin structures are self-extinguishing, ensuring safety in commercial buildings, mining operations, and dense residential zones.

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Optimized Total Cost of Ownership

By optimizing core geometry with high-permeability cold-rolled grain-oriented silicon steel (CRGO), our dry-type units dramatically lower no-load losses, providing great long-term energy savings and lowering operational expenditure for industrial installations.

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Custom Mechanical Design

From custom protective enclosures (IP20 to IP54) to targeted multi-voltage configurations, our engineers build transformers tailored to match the unique physical layouts and demanding electrical frameworks of overseas buyers.

China Supply Chain Advantages & Ecosystem

Leveraging deep industrial integration to provide high quality, unmatched scaling, and rapid international fulfillment.

The manufacturing excellence of Henan Pirooz Power Co., Ltd. is rooted in China's robust, vertically integrated power equipment supply chain. This comprehensive local ecosystem guarantees immediate access to ultra-pure, high-permeability grain-oriented electrical steels, premium electrolytic copper, and state-of-the-art epoxy resin formulas, allowing us to manage lead times and prevent material cost spikes effectively.

By blending advanced robotics and automated foil-winding setups with our deep domestic supply lines, we significantly shorten manufacturing times. Industrial projects that typically demand a twelve-week production window can be completed with greater speed and precision, providing global contractors with a strong competitive advantage in executing fast-track installation schedules.

Localized Applications & Specialized Engineering

Reliable power distribution across challenging environmental conditions and high-stress operational sectors.

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Wind Power Infrastructure

Engineered to handle fluctuating loads and extreme harmonic distension in offshore and onshore wind nacelles. Our structures resist vibration and withstand intense thermal cycling.

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Urban Rail Transit

Supplying continuous traction power for urban underground and light rail networks. These systems require strict transient overload capabilities and total smoke safety compliance.

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High-Density Complexes

Trusted for high-rise commercial structures and municipal utilities. Eliminating liquid leakage risks while ensuring seamless integration with modern fire-suppression systems.

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Mission-Critical Data Centers

Delivering high-purity electrical stability for severe IT server loads, featuring advanced K-factor tracking designs to neutralize intense harmonic currents without overheating.

Next-Gen Technological Trends & ESG Alignment

Pioneering sustainable, intelligent energy distribution systems for tomorrow's green networks.

The global power sector is undergoing a massive shift toward sustainable efficiency and real-time asset monitoring. Amorphous alloy core development is at the forefront of this trend, reducing core losses by up to 70% compared to traditional materials. This technological advancement supports global carbon reduction targets and aligns perfectly with strict international ESG parameters.

Simultaneously, the deployment of intelligent IoT sensor nodes on dry-type transformers allows operators to continuous track core temperature, winding hot spots, and insulation degradation. Through predictive AI analytics, maintenance crews can address issues early, preventing costly downtime and maximizing the operational lifespan of critical power grid nodes.

Localization Support & International Compliance

Ensuring absolute compliance with regional grid parameters, safety codes, and rigorous testing validation.

To successfully expand across international markets, Henan Pirooz Power Co., Ltd. continuously refines its engineering to align with localized grid regulations. Whether managing the high-voltage parameters of European smart grids or the strict safety standards required across the Americas, our design processes are adapted to match precise local operational demands.

Our commitment to reliable performance is backed by extensive type-testing protocols. Every unit series is validated through rigorous testing routines, including full short-circuit withstand assessments, lightning impulse testing, and acoustic emission analyses, providing international buyers with total operational confidence.

Global Regulatory Framework

  • IEC 60076-11: Global standard for dry-type power systems.
  • IEEE C57.12.01: Regulatory design criteria for North American deployment.
  • CE / KEMA Validation: Certified safety metrics for European distribution networks.
  • Seismic & Climate Proofing: Enclosures certified for high-vibration and extreme weather zones.

Advanced Production Line & Manufacturing Gallery

With a growing international footprint, Henan Pirooz Power Co., Ltd. has exported its products to multiple countries and regions worldwide, building long-term partnerships across global energy markets.

Cutting Process
01. Cutting
Bending Process
02. Bending
Spray painting Process
03. Spray painting
Soldering Process
04. Soldering
Assembling Process
05. Assembling
Finished product assembly
06. Finished product assembly
QC Laboratory
07. QC Testing
Warehouse Control
08. Managed Warehouse
Mechanical arm Processing
09. Mechanical Arm
Laser cutting machine
10. Laser Cutting Machine
Spray painting line
11. Automatic Spray Line
Bending machine
12. Heavy Bending Machine
Cutting machine
13. Precise Cutting Machine

Technical Specification & Diagnostic FAQ

Expert engineering insights into selecting, evaluating, and maintaining high-performance dry-type transformers.

Q1: What makes cast resin dry-type transformers superior to traditional oil-immersed alternatives?
Cast resin dry-type transformers eliminate fluid leak risks and are self-extinguishing, making them ideal for high-density settings, indoor substations, and eco-sensitive zones. They require minimal maintenance, eliminate oil-containment costs, and provide excellent resistance to moisture and industrial contamination.
Q2: How does Henan Pirooz Power guarantee a low partial discharge performance?
We utilize advanced thin-layer vacuum pressure casting technology under strict control profiles. This process ensures the epoxy formula completely penetrates the winding structures, eliminating micro-voids and keeping partial discharge levels below 5pC, which significantly extends insulation lifetime.
Q3: Can these transformers be customized to withstand extreme environmental conditions?
Yes. We construct customized protective enclosures ranging up to IP54 for outdoor or dusty industrial environments. Additionally, the windings are treated with resilient anti-fungal and anti-corrosive coatings, meeting global requirements for Class C3 climatic and Class E3 environmental conditions.
Q4: What efficiency classifications do your current transformer configurations achieve?
Our standard SCB13 and SCBH15 amorphous core configurations fully comply with international EcoDesign and high-efficiency tier targets. They provide remarkably low no-load and load-loss metrics, helping industrial facilities lower their environmental footprint and optimize ongoing operating expenses.

Looking ahead, Henan Pirooz Power Co., Ltd. is committed to innovation, energy efficiency, and smart manufacturing development. By continuously improving product performance and system integration capabilities, Henan Pirooz Power Co., Ltd. aims to become a globally recognized provider of advanced power equipment solutions, supporting the development of modern and sustainable energy infrastructure.

All Cast Resin Dry-type Transformer Products