Dry Type Transformer

Premium Cast Resin Dry Type Transformers for Safe Power Distribution

As a highly recognized electrical equipment manufacturer founded in 2014, ZISHENG specializes in the design, engineering, and production of top-tier dry type transformers. Unlike traditional oil-filled models, our dry type transformers utilize advanced solid insulation or vacuum pressure impregnation (VPI) technology. This completely eliminates the risk of oil leaks, making them the safest choice for environments where fire safety and environmental protection are paramount.

Advanced Insulation and Manufacturing Technology

The core of a high-performance dry type transformer is its insulation system. At ZISHENG, we combine premium raw materials with state-of-the-art manufacturing processes to deliver equipment that meets the highest international safety standards.

• Epoxy Cast Resin Technology: Our high-voltage windings are encapsulated in premium epoxy resin under strict vacuum conditions. This ensures a void-free solid insulation that virtually eliminates partial discharge, offering superior dielectric strength and moisture resistance.
• High-Quality Magnetic Cores: Constructed from cold-rolled, grain-oriented silicon steel sheets. The precise step-lap core design drastically reduces no-load loss, minimizes operational noise, and enhances overall energy efficiency.
• Optimized Copper/Aluminum Windings: Engineered to withstand intense thermal shocks and mechanical stresses during short circuits. The robust winding structure ensures excellent heat dissipation and stable long-term operation.
• Advanced Temperature Control: Equipped with intelligent temperature controllers and PT100 sensors to monitor winding temperatures in real-time, automatically triggering cooling fans (AF) to prevent overheating during overload conditions.

Key Advantages of ZISHENG Dry Type Transformers

Backed by 21 utility model patents and rigorous testing protocols, ZISHENG delivers power solutions that offer unparalleled reliability and low total cost of ownership.

• Fire-Resistant & Self-Extinguishing: The epoxy resin is inherently flame-retardant and will not support combustion, ensuring absolute safety for indoor and high-density population areas.
• Zero Maintenance & Eco-Friendly: With no oil to check, filter, or replace, our dry type transformers are essentially maintenance-free. They pose zero risk of soil or water contamination.
• High Moisture & Dust Resistance: The sealed cast resin coils prevent moisture ingress, allowing the transformer to be safely energized even after prolonged periods of shutdown in highly humid environments.
• Compact & Space-Saving Design: Without the need for bulky oil tanks or fire-clearance vaults, our transformers can be installed closer to the load center, significantly reducing cable costs and power transmission losses.

Ideal Applications Across Critical Industries

Trusted by over 200 clients globally, ZISHENG’s dry type transformers are the preferred choice for applications where fire hazards are strictly prohibited and space is limited.

• Commercial Real Estate: High-rise office buildings, shopping malls, and large residential complexes.
• Public Infrastructure: Airports, subway systems, hospitals, and educational institutions.
• High-Tech & Data Centers: Providing ultra-stable, interference-free power for critical server farms and telecommunications hubs.
• Heavy Industry & Renewable Energy: Safe power solutions for underground mining, petrochemical plants, offshore platforms, and wind turbine nacelles.

Technical Specifications & Custom OEM/ODM Services

As an approved vendor for the State Grid and a certified high-tech enterprise, ZISHENG provides comprehensive OEM and ODM customization. We can design protective enclosures (from IP20 to IP44) and tailor electrical parameters to meet your specific project blueprints.

Frequently Asked Questions (FAQs)

Q: What is the difference between cast resin and VPI dry type transformers?

A: Cast resin transformers have their high-voltage windings completely encapsulated in solid epoxy resin, offering maximum protection against moisture and dust. VPI (Vacuum Pressure Impregnation) transformers use a specialized varnish process. Cast resin is generally preferred for harsh or highly humid environments, while VPI is lighter and highly efficient for standard indoor use. ZISHENG provides both solutions based on your needs.

Q: Can you customize the enclosure (housing) for the transformer?

A: Yes. We offer fully customized enclosures in various materials (stainless steel, aluminum alloy, or cold-rolled steel) with specific IP ratings (e.g., IP20 for indoor touch protection, IP33 for outdoor rain resistance) to match your installation environment.

Q: Do you offer OEM manufacturing for global brands?

A: Absolutely. Our ISO 9001 and ISO 45001 certified facility is fully equipped to handle OEM and ODM orders. We can manufacture equipment under your brand name, adhering strictly to your technical designs and quality requirements.

Q: Are dry type transformers louder than oil-immersed ones?

A: Historically, dry types could be slightly louder, but ZISHENG utilizes advanced step-lap core stacking technology and precise clamping structures to drastically minimize vibration and magnetic resonance, ensuring exceptionally quiet operation suitable for residential and hospital environments.

Upgrade Your Power System with a Reliable Manufacturer

Ensure the utmost safety and efficiency for your power distribution projects. ZISHENG combines innovative engineering, stringent quality control, and flexible cooperation mechanisms to deliver superior dry type transformers. Send us your technical drawings or project specifications today for a comprehensive engineering proposal and competitive quote.

Contact ZISHENG Today:
Email: info@bdzstransformer.com
Phone: +86-191-3128-5373
WhatsApp: Message us on WhatsApp
Factory Location: No. 6799 North Third Ring Road, Jingxiu District, Baoding, Hebei, China