1000 kVA Dry-Type Transformer — Resin Cast, Low Noise, Factory Direct Supply

The 1000 kVA dry-type transformer is one of the most widely used power distribution solutions in modern medium-voltage systems. It is especially suitable for applications requiring high safety, environmental protection, and operational reliability. Compared with traditional oil-immersed transformers, dry-type transformers do not use insulating oil, eliminating the risks of oil leakage and fire hazards. They can be installed directly inside buildings and are widely used in industrial manufacturing, commercial complexes, rail transit, hospitals, schools, data centers, and renewable energy projects.

As a professional dry-type transformer manufacturer, we supply SC(B)10 and SC(B)11 series 1000 kVA resin cast dry-type transformers. Manufactured with high-quality cold-rolled silicon steel and epoxy resin vacuum casting technology, these transformers offer low noise, low losses, high insulation strength, and long service life, complying with IEC 60076-11, GB/T 10228, and other international standards.

What Is a 1000 kVA Dry-Type Transformer?

A 1000 kVA dry-type transformer is a distribution transformer with a rated capacity of 1000 kilovolt-amperes. It uses air cooling or solid insulation instead of insulating oil for insulation and heat dissipation. Unlike oil-filled transformers, its windings are not immersed in oil but insulated through resin casting or VPI (Vacuum Pressure Impregnation) processes.

Among different dry-type transformer technologies, resin cast transformers have become the market mainstream due to their superior mechanical strength, moisture resistance, and fire performance. They are especially suitable for densely populated buildings and indoor installations where safety is critical.

Core Advantages of Resin Cast Dry-Type Transformers

High Insulation Strength and Moisture Resistance

The 1000 kVA resin cast dry-type transformer adopts epoxy resin vacuum casting technology, fully encapsulating both high-voltage and low-voltage windings. This structure effectively prevents moisture, dust, and contaminants from entering the windings, significantly improving insulation reliability.

With insulation classes available up to Class F (155°C) or Class H (180°C), the transformer can operate reliably under heavy-load and high-temperature conditions.

Low Noise Operation

Transformer noise control is essential for hospitals, schools, office buildings, hotels, and residential substations. Our 1000 kVA dry-type transformer incorporates multiple noise reduction technologies.

The transformer core uses high-permeability cold-rolled silicon steel with a 45° step-lap joint structure to reduce no-load magnetostriction noise. Precision winding technology minimizes electromagnetic vibration, while anti-vibration mounting structures and damping pads further reduce structural resonance.

Under standard operating conditions, the overall noise level can be controlled at ≤50 dB(A), making it ideal for noise-sensitive environments.

Flame Retardant and Self-Extinguishing Safety

The epoxy resin material features an oxygen index (LOI) of ≥40, providing excellent flame-retardant performance. Even under extreme temperatures, the resin will not burn, drip, or emit large amounts of toxic gases and can self-extinguish automatically.

This series complies with the F1 fire safety classification of IEC 60076-11 and can be installed directly inside high-rise buildings, underground facilities, and rail transit systems without requiring separate oil pits or dedicated fire barriers.

Maintenance-Free and Long Service Life

Traditional oil-immersed transformers require regular oil inspection, oil replacement, and leakage checks. In contrast, dry-type transformers eliminate the need for oil maintenance, greatly reducing operating costs and maintenance workload.

The resin cast structure effectively prevents winding aging and moisture absorption, allowing a normal service life of more than 30 years.

1000 kVA Dry-Type Transformer Technical Specifications

The above specifications are standard configurations. Custom designs are available for special voltage ratings, frequencies, impedance values, and enclosure structures.

Applications of 1000 kVA Dry-Type Transformers

Industrial Manufacturing

Widely used in machinery manufacturing plants, automotive assembly lines, steel mills, mining operations, chemical plants, ports, and heavy industrial applications requiring continuous heavy-load operation.

Commercial and Public Buildings

Suitable for shopping malls, office buildings, hotels, hospitals, schools, and sports arenas where low noise and high fire safety are essential.

Infrastructure Projects

Extensively used in urban rail transit systems, airports, high-speed railway stations, and underground utility tunnels.

Renewable Energy and Data Centers

The 1000 kVA dry-type transformer is ideal for solar power plants, wind farms, energy storage systems, and data center power distribution networks requiring high reliability and low energy loss.

Why Choose Factory Direct Supply?

Lower Procurement Costs

Factory direct sales eliminate intermediary markups, reducing procurement costs by approximately 15%–30% while maintaining the same product quality. This is especially beneficial for large-scale engineering projects and bulk purchases.

Flexible Customization

We provide extensive customization options, including special voltage ratings, vector groups, low-loss designs, protective enclosures, intelligent temperature control systems, and international certifications.

High-voltage ratings from 3.3 kV to 35 kV are available, with vector groups such as Dyn11, Yyn0, and Yd11. PT100 temperature sensors and intelligent thermal monitoring systems can also be integrated.

Fast Delivery and Technical Support

Standard models are available in stock and can be shipped within as fast as 7 working days. For large projects, we offer production tracking, installation guidance, and technical support services.

Quality Control and Certifications

All 1000 kVA dry-type transformers undergo strict type testing and routine factory testing to ensure reliable long-term operation.

Products are available with CCC, ISO 9001, CE, IEC, and SGS certifications and are supplied with complete type test reports, including temperature rise tests, partial discharge tests, short-circuit withstand tests, and insulation tests.

Before shipment, every transformer must pass no-load testing, load testing, ratio testing, induced voltage testing, and power frequency withstand voltage testing, with full inspection reports included.

How to Select the Right 1000 kVA Dry-Type Transformer?

Before purchasing a 1000 kVA dry-type transformer, users should carefully confirm key technical parameters.

Important considerations include system voltage level, load characteristics, installation environment, noise limitations, protection requirements, vector group configuration, and future load expansion plans.

If the system contains large amounts of nonlinear loads such as UPS systems, variable frequency drives, or rectifiers, a K-factor transformer or harmonic mitigation solution should be considered to prevent overheating.

For high-altitude, high-temperature, high-humidity, or dusty environments, insulation margins and cooling system design should also be adjusted accordingly.

Get a Quote for 1000 kVA Dry-Type Transformers

If you are looking for a high-quality, low-loss, low-noise 1000 kVA resin cast dry-type transformer, we can provide professional selection support and factory-direct pricing solutions.

Simply provide your project capacity, voltage level, installation environment, and application details, and our engineering team will deliver a complete technical proposal, product datasheet, and quotation within 24 hours.

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