1500 kVA Three Phase Cast Resin Dry Type Transformer, 13.2 kV Primary to 480Y/277 V Secondary – Medium Voltage Power Transformer

1. Product Overview – Medium Voltage Cast Resin Dry Type Transformer

The 1500 kVA Three Phase Cast Resin Dry Type Transformer is a high-capacity medium voltage power transformer specifically designed for safe, stable and efficient power distribution in industrial, commercial and infrastructure applications. As a modern cast resin transformer, this dry type transformer adopts oil-free construction and epoxy resin insulation technology, delivering superior fire resistance, environmental safety and long-term operational reliability.

Compared with traditional oil-immersed transformers, this medium voltage dry type power transformer eliminates oil leakage risks and significantly reduces fire hazards, making it particularly suitable for indoor substations, commercial buildings, data centers and industrial plants. With its three phase configuration and robust mechanical structure, the transformer ensures stable voltage transformation and continuous operation under demanding load conditions.

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2. Technical Parameters & Specification Table – 1500 kVA Dry Type Transformer

Item	Specification
Rated Capacity	1500 kVA (cast resin dry type transformer customizable from 500 kVA to 3000 kVA)
Transformer Type	Three Phase Cast Resin Dry Type Transformer
Primary Voltage	34.5 kV (optional medium voltage levels: 10 kV, 11 kV, 13.2 kV, 13.8 kV)
Secondary Voltage	480Y/277 V (optional: 400 V, 415 V, 480 V)
Frequency	50 Hz / 60 Hz
Cooling Method	AN (Air Natural), AF (Forced Air) optional
Insulation System	Epoxy Cast Resin, F Class / H Class
Voltage Adjustment	±2 × 2.5% off-circuit tap changer
Installation	Indoor dry type transformer (outdoor enclosure optional)
Standards	IEC, CE, ISO, UL optional

This parameter configuration allows the medium voltage cast resin dry type transformer to adapt to different regional grid standards and project requirements worldwide.

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3. Cast Resin Transformer Technology – Core Insulation Advantage

The cast resin dry type transformer utilizes vacuum pressure casting technology to encapsulate the windings with high-quality epoxy resin. This manufacturing process creates a solid, moisture-resistant and mechanically strong insulation structure that significantly improves dielectric strength and thermal stability.

Compared with conventional dry type transformers, a cast resin transformer offers enhanced resistance to humidity, dust and chemical pollution, making it highly suitable for harsh industrial environments. This advanced insulation system ensures long service life, reduced partial discharge and stable performance throughout continuous operation.

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4. Advantages of Dry Type Power Transformer Design

A dry type power transformer provides multiple operational advantages over oil-filled designs. The oil-free construction of this medium voltage dry type transformer eliminates fire and environmental risks associated with transformer oil, while also simplifying installation and maintenance procedures.

Key benefits include improved indoor safety, reduced maintenance costs, stable voltage regulation and long-term reliability. These advantages make the three phase cast resin dry type transformer a preferred solution for modern power distribution systems requiring high safety and efficiency.

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5. Electrical Performance & Medium Voltage Reliability

The 1500 kVA medium voltage power transformer is engineered to deliver excellent electrical performance, including low no-load losses, low noise levels and strong short-circuit withstand capability. Balanced three phase design ensures uniform load distribution and stable voltage output across all phases.

This medium voltage dry type transformer maintains consistent performance even under fluctuating input voltage and variable load conditions, making it suitable for critical power systems and continuous-duty industrial applications.

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6. Materials & Core Components – Industrial Grade Construction

This cast resin dry type power transformer is manufactured using premium silicon steel cores with low magnetic loss, combined with high-conductivity copper or aluminum windings. The use of high-grade epoxy resin insulation further enhances mechanical strength and thermal performance.

All materials are selected to meet international standards for medium voltage power transformers, ensuring durability, efficiency and long-term operational stability in global power distribution environments.

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7. Manufacturing Process & Quality Control System

As a professional medium voltage transformer factory, production follows strict ISO quality management systems. The manufacturing process includes controlled winding, resin casting, curing, assembly and inspection stages to ensure consistent quality across every cast resin dry type transformer.

Each unit is produced with precise process control to guarantee insulation integrity, mechanical stability and electrical performance before leaving the factory.

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8. Testing & Inspection – Dry Type Transformer Certification

Every medium voltage cast resin dry type transformer undergoes comprehensive factory testing to verify performance and safety. Standard tests include ratio testing, insulation resistance testing, applied voltage testing, induced voltage testing and partial discharge measurement.

Temperature rise testing and noise level testing are conducted to ensure compliance with IEC dry type transformer standards, with optional UL certification and third-party inspection available for specific market requirements.

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9. Application Scenarios – Medium Voltage Power Systems

This 1500 kVA cast resin dry type transformer is widely used in various medium voltage power distribution scenarios, including industrial manufacturing plants, commercial buildings, data centers, hospitals, renewable energy facilities and transportation infrastructure projects.

Its oil-free and fire-resistant design makes it particularly suitable for indoor installations and high-density urban power systems where safety and reliability are critical.

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10. Global Sales & Export Markets

Designed for international applications, this medium voltage dry type power transformer is supplied to global markets such as the United States, Canada, Brazil, Argentina, Mexico, Venezuela, Australia, New Zealand, Indonesia, Malaysia, the Philippines, United Arab Emirates, Saudi Arabia, Russia, Germany, France and South Africa.

The transformer supports diverse grid standards and project requirements, ensuring reliable performance across different regions worldwide.

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11. OEM / ODM Customization & Factory-Direct Supply

As a China leading cast resin dry type transformer manufacturer, supplier, wholesaler and factory, full OEM / ODM customization services are available. Customers can customize rated capacity, voltage configuration, insulation class, enclosure protection level and branding according to specific project needs.

Factory-direct sales ensure competitive pricing, technical support and flexible delivery for global customers.

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12. Typical Project Applications & Case References

Typical applications of this medium voltage power transformer include industrial park distribution systems, commercial complex power supply upgrades, data center infrastructure projects and renewable energy substations. These applications demonstrate the adaptability and reliability of the cast resin dry type transformer in real-world projects.

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13. Installation & Maintenance of Dry Type Transformers

The oil-free design of this dry type transformer simplifies installation and reduces long-term maintenance requirements. Regular inspection, ventilation management and terminal tightening are generally sufficient to maintain stable operation over the transformer’s service life.

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14. Frequently Asked Questions (FAQ) – Cast Resin Dry Type Transformer

Q1: Is this cast resin dry type transformer suitable for indoor medium voltage substations?
Yes, it is specifically designed for safe indoor medium voltage applications.

Q2: Can voltage and capacity be customized?
Yes, full customization from 500 kVA to 3000 kVA and multiple voltage options is supported.

Q3: What are the advantages of cast resin transformers compared to conventional dry type transformers?
Cast resin transformers provide higher insulation strength, better fire resistance and longer service life.

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15. Conclusion – Trusted Medium Voltage Power Transformer Solution

By integrating advanced cast resin dry type transformer technology, a robust three phase transformer design, premium-grade materials, strict factory quality control and full OEM / ODM customization capabilities, the 1500 kVA Three Phase Cast Resin Dry Type Transformer provides a safe, efficient and long-lasting medium voltage power transformer solution for industrial, commercial and infrastructure power systems worldwide.

PowerNex supplies a complete range of dry type and cast resin transformers, covering common rated capacities such as 500 kVA, 630 kVA, 800 kVA, 1000 kVA, 1250 kVA, 1500 kVA, 2000 kVA, 2500 kVA and 3000 kVA, with flexible voltage configurations including 10 kV, 11 kV, 13.2 kV, 13.8 kV, 20 kV, 33 kV and 34.5 kV primary, and 400 V, 415 V, 480 V, 480Y/277 V and other customized secondary voltages. These options ensure seamless integration into diverse regional grids and project specifications.

As a China leading dry type transformer manufacturer, supplier, wholesaler and factory, PowerNex supports global sales, bulk purchasing, engineering projects, EPC cooperation and private label branding. Products are exported to North America, South America, Europe, the Middle East, Southeast Asia, Africa and Oceania, including the United States, Canada, Brazil, Mexico, Germany, France, UAE, Saudi Arabia, Australia, Indonesia and beyond.

Whether for SEO-driven online procurement, SEM project inquiries, distributor sourcing or large-scale infrastructure tenders, PowerNex offers professional technical consultation, fast quotation, flexible customization and reliable delivery. Contact us today to discuss specifications, request a datasheet or receive a competitive factory-direct price.

A professional, export-oriented and globally trusted dry type and cast resin medium voltage transformer solution — PowerNex.