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Home > Electrical & Electronics > Power Supply & Distribution > Switchgear > Three-Phase 30kVA Dry Type Transformer, 10kV/400V, Low Noise, Natural Air Cooling

Three-Phase 30kVA Dry Type Transformer, 10kV/400V, Low Noise, Natural Air Cooling

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Product Spotlights

A safe, oil-free 30kVA dry-type transformer for indoor use, featuring 10kV/400V three-phase operation. Its natural air cooling ensures silent, maintenance-free performance, while the low-noise design makes it ideal for sensitive environments like hospitals and offices. Built for reliability and long life with high-grade insulation.

US$ 1600 - 2900 MOQ: 1 Unit

Key Specifications

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Rated Capacity:

30kVA

Primary Voltage:

10kV

Secondary Voltage:

400V

Contact Supplier Request Quote Chat Now

Jinhua Dika Electrical Equipment Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Rated Capacity 30kVA

Primary Voltage 10kV

Secondary Voltage 400V

Cooling Method Natural Air Cooling (AN)

Type Dry Type, Cast Resin or Vacuum Pressure Impregnated (VPI)

Insulation Class F or H (customizable)

Noise Level Low Noise Design

Phase Three-Phase

Application Industrial Power Distribution, Commercial Buildings, Renewable Energy Systems

Standards Compliance IEC, ANSI, or other international standards (available upon request)

As a specialized manufacturer, Jinhua Dika Electrical Equipment Co., Ltd. is proud to present our high-performance Three-Phase 30kVA Dry Type Transformer, engineered for reliable and safe power distribution. Designed with a focus on operational efficiency and environmental safety, this transformer is an ideal solution for modern facilities requiring a robust electrical backbone without the risks associated with liquid-filled units. Our commitment to quality, backed by a comprehensive ISO 9001 management system, ensures that every unit delivers consistent performance, making it a trusted component for power systems worldwide.

This 10kV/400V transformer is built to excel in demanding applications. Its core advantages are detailed below:

Enhanced Safety & Environmental Friendliness: As a dry-type transformer, it contains no oil or liquid dielectric, eliminating the risks of fire, leakage, and soil contamination. This makes it perfectly suited for installation indoors, in sensitive environments, or in areas with strict fire safety regulations.
Low Noise Operation: Utilizing advanced core design and manufacturing techniques, we have significantly reduced audible noise emissions. This feature is critical for installations in hospitals, schools, office buildings, and residential complexes where quiet operation is a priority.
Natural Air Cooling (AN): The transformer relies on natural convection for cooling, requiring no fans, pumps, or external cooling systems. This design simplifies installation, reduces maintenance needs, and ensures silent, energy-efficient operation with zero moving parts to wear out.
High Reliability & Long Service Life: The use of high-quality, class F or H insulation materials and a vacuum pressure impregnation (VPI) or cast resin process ensures excellent resistance to moisture, dust, and chemical contaminants, leading to superior dielectric strength and extended operational lifespan.
Low Maintenance Requirements: With no oil to test, filter, or replace, and no cooling system to maintain, the total cost of ownership is considerably lower compared to oil-filled transformers. Periodic visual inspections and basic cleaning are typically sufficient.

Technical Specifications Overview:

Parameter	Specification
Rated Capacity	30 kVA
Primary Voltage (High Voltage)	10,000 V (10kV)
Secondary Voltage (Low Voltage)	400 V
Frequency	50 Hz / 60 Hz (customizable)
Phase	Three-Phase
Vector Group	Dyn11, Dyn5, Yyn0, or others (available upon request)
Cooling Class	AN (Natural Air)
Insulation Class	F (155°C) or H (180°C) (customizable)
Noise Level	Designed to meet low noise standards (specific dB(A) levels available upon request)
Impregnation / Encapsulation	VPI (Vacuum Pressure Impregnated) or Cast Resin
Standards	Can be manufactured to comply with IEC, ANSI, or other regional standards
Terminations	Cabinet or bushing type, customizable
Protection Degree (IP Rating)	IP00, IP20, IP23 (typical indoor ratings, customizable)

Applications & Benefits for Your Business:

Industrial Plants: Provides a safe and reliable power source for machinery, motor control centers (MCCs), and production lines. Its durability withstands harsh industrial environments.
Commercial Buildings: Ideal for shopping malls, hotels, and office towers where space, safety, and quiet operation are paramount. It can be installed in electrical rooms close to the load.
Infrastructure Projects: Suitable for airports, railway stations, and water treatment facilities due to its high reliability and minimal maintenance needs.
Renewable Energy Integration: Effectively steps up voltage from solar or wind generation systems for grid connection, benefiting from its robust design.
Cost Savings: Lower installation costs (no containment pits for oil spills), reduced fire insurance premiums, and minimal ongoing maintenance translate to a favorable return on investment.

With an annual export value reaching up to US$1.5 million and a presence in diverse markets from North America and Western Europe to Southeast Asia and Africa, Jinhua Dika has proven its capability to meet international quality and delivery expectations. Our multi-port shipment options (Shanghai, Tianjin, Guangzhou, Ningbo) ensure flexible and efficient logistics. This 30kVA Dry Type Transformer embodies our manufacturing expertise—delivering a product that combines safety, efficiency, and longevity. For a reliable power distribution solution that aligns with modern safety and environmental standards, contact us today to discuss your specific requirements or request a detailed quotation.

Frequently Asked Questions (FAQ)

Q: What are the main advantages of a dry-type transformer over an oil-filled one?
A: Dry-type transformers offer superior safety as they are fire-resistant and eliminate the risk of oil leaks and environmental contamination. They are also lower maintenance, as there is no oil to monitor or replace, and they operate more quietly, making them suitable for indoor installations.
Q: Can this 10kV/400V transformer be used in a 60Hz power system?
A: Yes, absolutely. While 50Hz is common, the transformer design can be customized for 60Hz operation. Please specify your frequency requirement during inquiry to ensure correct manufacturing.
Q: What does "Natural Air Cooling (AN)" mean, and does it require external fans?
A: AN cooling means the transformer dissipates heat solely through natural air convection around its windings and core. No external fans, pumps, or auxiliary cooling systems are required, which simplifies design and reduces noise and maintenance.
Q: How low is the "Low Noise" level? Can you provide specific dB(A) values?
A: Our low-noise design aims to significantly reduce audible hum. Specific sound power level (dB(A)) values depend on the final design and load. We can provide typical noise level data sheets upon request for your project evaluation.
Q: What is the typical delivery lead time for this product?
A: As a manufacturer, our lead times are competitive. Standard configurations typically have shorter lead times, while customized units (specific voltages, tap changers, special coatings) may require additional production time. We provide accurate lead time estimates with every quotation.
Q: Do you offer different protection degrees (IP ratings) for indoor vs. outdoor installation?
A: Yes. Standard units are often supplied with IP20 for indoor, dry locations. For outdoor or more demanding environments, higher IP ratings like IP23 or IP54 can be specified. Please discuss your installation environment with us.
Q: Are your transformers compliant with international standards like IEC or ANSI?
A: Yes, our manufacturing processes adhere to strict quality systems. We can produce transformers to meet the technical requirements of major international standards such as IEC 60076 or ANSI C57.12.01. Specific standard compliance should be detailed in your purchase specifications.
Q: What kind of after-sales support and warranty do you provide?
A: We stand behind our products with a comprehensive warranty. We also provide technical documentation, installation guidance, and responsive support. Details of the warranty period and terms are provided with the commercial offer.