Dry Type Transformer

Your Professional Dry Type Transformer Supplier

Baoding Tianwei Baogian Power Equipment Co., Ltd. is a professional manufacturer and solution provider for intelligent power equipment. We focus on high-voltage transformers, switchgear, box-type substations, and intelligent monitoring and fault early warning systems. Our products are widely used in power transmission and distribution networks, industrial manufacturing, commercial infrastructure, and renewable energy projects. With certified quality systems and strong engineering capability, we deliver safe, reliable, and cost-effective solutions to domestic and international customers.

Comprehensive Power Equipment Capability
We offer a complete range of transformers, switchgear, substations, and intelligent monitoring systems covering 0.4kV–220kV and up to 100,000kVA, supporting power grids, industry, infrastructure, and renewable energy projects.

Certified Quality
Our operations follow ISO9001, ISO14001, and ISO45001 systems. Full in-house production and testing equipment ensure stable performance, safety, and consistent compliance with international standards.

Custom Solutions
An experienced engineering team, supported by long-term cooperation with leading universities, provides project analysis, customized designs, and reliable solutions for complex and high-demand applications.

Full Lifecycle Service Support
From technical consultation and system design to installation guidance, maintenance, and upgrades, we deliver long-term support to ensure reliable operation and lower total ownership cost.

Dry Type Power Transformer
Dry Type Power Transformer is a vital asset for modern power distribution, engineered to transform voltage levels without the use of flammable insulating oil. Utilizing advanced solid insulation...
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1000 Kva Dry Type Transformer
The SCB13-1000 1000kVA Dry-Type Transformer is a high-performance, large-capacity power solution engineered for demanding and mission-critical applications worldwide. Designed as part of the...
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750 Kva Dry Type Transformer
The SCB12-750 750 kVA dry-type transformer is a next-generation, cast-resin unit explicitly engineered to surpass the latest GB20052-2020 energy-efficiency benchmark. By integrating higher-grade...
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220 Kva Dry Type Transformer
Capacity 220kva, insulation class H, no-load loss ≤550W, load loss ≤2730W.
High voltage resistance, large capacity, Compatible with intelligent monitoring.
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110 Kva Dry Type Transformer
Capacity 110kva , insulation class H, cooling method AN/AF, protection grade IP20.
Intelligent temperature control, low loss, high mechanical strength, suitable for industrial parks and...
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88 Kva Dry Type Transformer
Capacity 88kVA, voltage grade 0.4kV-10kV, insulation class H, no-load loss ≤300W, load loss ≤1890W.
High efficiency, strong overload capacity, environmental protection, suitable for...
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66 Kva Dry Type Transformer
Capacity 66kVA, voltage grade 0.4kV-10kV, insulation class H, short-circuit impedance 4%, cooling method AN/AF.
Low noise (≤55dB), high mechanical strength, intelligent monitoring, suitable...
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35 Kva Dry Type Transformer
Capacity 35kVA, voltage grade 0.4kV-10kV, insulation class H (220℃), cooling method natural air cooling/forced air cooling.
Low loss, compact size, fireproof and pollution-free, suitable for...
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Dry Type Distribution Transformer
Specifications: Voltage levels 0.4kV-35kV, capacity 30kVA-40000kVA, with epoxy resin-cast (SCB series) and non-encapsulated (SG series) options.
Features: Fireproof, pollution-free, low...
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3 Phase Dry Type Transformer
Specifications: 3-phase, 0.4kV-35kV voltage, 30kVA-40000kVA capacity, available in SC (B) 11-18 and SCBH amorphous alloy series.
Features: Low loss (no-load loss 75% lower than traditional...
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45kva Dry Type Transformer
This 45kVA Dry-Type Transformer from our SCB11-13 Series is engineered for superior performance in demanding power distribution networks. Utilizing advanced epoxy resin vacuum casting technology,...
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SC(B) Dry Type Transformer
Safe and Maintenance-Free
Intelligent Temperature Control Protection
Compact Structure, Low Noise
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Parameter

Rated Capacity	30-2500 kVA
Connection Group	Yyn0 or Dyn11
Voltage Combination	High Voltage: 10.5kV/6.3kV; Low Voltage: 0.4kV
Tap Range	±5% or ±2×2.5%
No-load Loss (SCB13-1000)	1270W
Load Loss (SCB13-1000, 120°C)	7310W
Insulation Class	F (120°C)
Standards Compliance	GB20052-2020, GB20052-2013

Types of Dry Type Transformer

The dry type transformers produced by our company mainly include the following types:

45kva Dry Type Transformer

Utilizing advanced epoxy resin vacuum casting technology, it sets a new standard for energy efficiency, operational reliability, and long-term cost-effectiveness.

300 Kva Dry Type Transformer

As part of the advanced SC(B)18 series, this SCB18-300 300kVA dry-type transformer surpasses GB20052-2020 standards with significantly lower losses.

2500 Kva Dry Type Transformer

This 2500kVA dry-type transformer leverages advanced H-class insulation and epoxy-free Womex® paper to withstand extreme temperatures (up to 220°C) and sustained heavy loads.

Advantages of Dry Type Transformer

Enhanced Safety

The fire risk is significantly reduced since dry-type transformers don’t use oil or liquid coolants.

Environmentally Friendly

Without the risk of oil leaks or spills, dry-type transformers are a more sustainable option.

High Efficiency

Dry-type transformers are designed to operate with minimal energy loss. This efficiency means lower operational costs and reliable performance, even in high-voltage applications.

Durability in Harsh Conditions

Thanks to their robust construction, dry-type transformers can withstand extreme temperatures, high humidity, and other challenging conditions without compromising performance.

Applications of Dry Type Transformer

General Power Distribution
The most fundamental application is as the main service transformer. It takes the medium voltage (e.g., 13.8 kV) supplied by the utility and steps it down to a lower utilization voltage (e.g., 480/277V or 208/120V) that is then distributed throughout the building via panelboards and switchgear.

HVAC Systems
Heating, Ventilation, and Air Conditioning (HVAC) systems are among the largest electrical loads in any commercial building.

Lighting Systems
While individual light fixtures run on standard voltage, large-scale commercial lighting systems are often fed from dedicated transformers. A dry type transformer might step down 480V to 208V or 120V specifically for the lighting panels that control thousands of fixtures across multiple floors.

Elevator and Escalator Systems
The powerful motors that drive elevators and escalators require a dedicated, reliable power source. A dry type transformer is typically installed in or near the building's mechanical rooms to supply the specific voltage and power required by this vertical transportation equipment.

Data Centers and Server Rooms
Data centers, whether they occupy a single room or an entire building, have non-negotiable power quality and reliability needs. Dry type transformers are a critical component in a data center's power chain.

Specialized Medical Equipment (Hospitals)
Hospitals and healthcare facilities require extremely clean and reliable power for sensitive diagnostic and life-support equipment. Dry type transformers are used to create isolated power systems, which reduce the risk of electric shock and minimize electrical noise that could interfere with medical devices like MRI machines and CT scanners.

Dry type Transformers - Classes of insulation

Dry-type transformers are available in three general classes of insulation. The main features of insulation are to provide dielectric strength and to be be able to withstand certain thermal limits. Insulation classes are:

220°C (Class R)

180°C (Class H)

155°C (Class F)

130°C (Class B)

105°C (Class A)

Installation Precautions for Dry Type Transformer

1. The Installation area should be dry, free from dust, excessive moisture, fertilizers, chemicals and other corrosive fumes or vapors, and separated from flammable materials in accordance.

2. Access pathways to the location must have enough clearance to move the transformer in place. Avoid stairways and elevators if possible.

3. The floor area should be smooth and level, and able to support the weight (in pounds/sq. ft) of the transformer. Reinforced concrete is preferable.

4. Dry type transformers must be installed in a level upright position in an area with free air circulation. Installing the transformer in a NEMA enclosure locking it in a room for safety and security is strongly recommended.

5. Avoid locations that could be subject to flooding or exposed to moisture or ambient temperatures in excess of 30°C.

6. Do not install dry type transformers beneath wet fire suppression sprinklers. Use a dry or foam fire suppression system if needed.

Ordering Process

Inquiry - quotation - communication - order confirming - deposit payment - production - testing and debugging - balance payment - packing - delivery - customer receiving - after service.

Packaging and Shipping

Packaging	Wooden Crate, Steel Frame with Shrink Wrap
Shipping	Shipping by sea, by air, by express are acceptable. According to your requirements.

Our Factory

Baoding is located in the middle of the North China Plain, more than 30 kilometers away from Xiong'an New Area.

Our Certificates

Quality Management System certification GB/T19001-2016/IS09001:2015, Environmental Management System certification GB/T24001-2016/IS014001:2015, Occupational Health and Safety Management System certification GB/T45001-2020/IS045001:2018, Certified Quality Testing Accredited by CNAS

FAQ

Q: What is the difference between wet and dry type transformers?

A: A wet transformer offers lower noise levels in outdoor and indoor locations, but a dry type is the safest option for an indoor application, such as inside a shopping center or office building.

Q: Can dry type transformers be used outside?

A: Dry type transformers can be installed indoor and outdoor but should dry type transformers be installed indoor or outdoor depends on a number of factors including the application, dry type transformer specification like the size, the power capacity, space, ventilation, fire safety, and security requirements.

Q: How long do dry type transformers last?

A: The average life expectancy of dry type transformers varies, but they generally last between 20 to 30 years. Industry standards and practical experiences suggest that well-maintained dry type transformers can serve effectively for up to 35 years or more under optimal conditions.

Q: Do dry transformers require a special enclosure?

A: Non-ventilated dry-type transformers should be provided with a weather-resistant enclosure when used in outdoor applications. Facility management teams should also consider ambient temperature and altitude.

Q: Which gas is used in a dry type transformer?

A: The best known of these is the open dry-type transformer, which uses class B and C solid insulations along with ambient air as the coolant. Related to these ventilated units are sealed dry-type transformers which use class H insulations and nitrogen as the coolant.

Q: What is the maintenance of a dry type transformer?

A: Look for adequate ventilation around the transformer. Remove anything in the area that impedes airflow. Look for dust or dirt accumulation on the surfaces of the transformer. You will need to clean these off after de-energizing the unit.

As one of the leading dry type transformer manufacturers and suppliers in China, we also support customized service. With over 20 years' experience, we warmly welcome you to buy high quality dry type transformer made in China here from our factory. For price consultation, contact us.

250kVA 3 Phase Dry Type Transformers, 50 kva dry type transformer, 2 5mva dry type transformer