With the rapid growth of urban infrastructure, industrial facilities, and renewable energy applications, modern power distribution systems require equipment that delivers higher safety, reliability, and environmental performance.Traditional transformer solutions may face limitations in applications where fire safety, space efficiency, and maintenance requirements are critical.Dry type distribution transformers have become an increasingly preferred solution due to their excellent insulation performance, fire resistance, and environmentally friendly characteristics.

Comking Electric’s SC(B) series epoxy cast dry type transformers are designed to provide safe and stable power distribution for commercial, industrial, and infrastructure applications.

What Is a Dry Type Distribution Transformer?

A dry type distribution transformer is a transformer that uses solid insulation materials instead of insulating oil.

Unlike oil-filled transformers, dry type transformers adopt epoxy resin encapsulated windings, which provide excellent electrical insulation and environmental protection.

Key characteristics include:

• No risk of oil leakage
• Improved fire safety
• Reduced maintenance requirements
• Environmentally friendly operation

Because of these advantages, dry type transformers are widely used in locations with strict safety requirements, including hospitals, high-rise buildings, transportation facilities, and underground power systems.

Why Are Dry Type Transformers Becoming More Popular?

1. Superior Fire Safety Performance

Safety is a key factor in modern electrical infrastructure.

Comking SC(B) series dry type transformers use epoxy resin casting technology, providing:

• Flame retardant performance
• Self-extinguishing capability
• High insulation strength

These features significantly reduce fire risks and make them suitable for densely populated environments.

Typical applications include:

• Hospitals
• Hotels
• Shopping centers
• Office buildings
• Airports
• Metro systems

2. Reliable Performance in Challenging Environments

Electrical equipment installed in urban and industrial environments must withstand temperature variations, humidity, and demanding operating conditions.

Comking dry type transformers feature:

• Moisture-resistant structure
• Corrosion-resistant insulation
• Strong temperature adaptability

They can operate reliably in environments requiring high protection levels and long-term stability.

3. Energy Efficiency and Low Operating Costs

Energy efficiency plays an increasingly important role in modern power systems.

Through optimized core design and advanced winding technology, Comking dry type transformers achieve:

• Low no-load losses
• Low operating noise
• High electrical efficiency
• Reduced lifecycle costs

This helps customers improve energy utilization while reducing operational expenses.

Comking SC(B) Series Dry Type Transformer

Comking SC(B) series epoxy cast dry type transformers use electrically oriented silicon steel or amorphous alloy as core materials.

The windings are manufactured with epoxy resin casting technology, ensuring:

• High mechanical strength
• Excellent insulation performance
• Strong short-circuit resistance
• Stable long-term operation

Product Series

10kV Dry Type Transformer

• SC(B)10 Three-phase Epoxy Cast Dry-type Power Transformer
• SC(B)11 Three-phase Epoxy Cast Dry-type Power Transformer
• SC(B)12 Three-phase Epoxy Cast Dry-type Power Transformer
• SC(B)14 Three-phase Epoxy Cast Dry-type Power Transformer
• SC(B)18 Three-phase Epoxy Cast Dry-type Power Transformer

20kV Dry Type Transformer

• SC(B)10 Three-phase Epoxy Cast Dry-type Power Transformer

35kV Dry Type Transformer

• SC(B)10 Three-phase Epoxy Cast Dry-type Power Transformer

Comking also provides customized transformer solutions according to different voltage levels, installation environments, and project requirements.

Product Performance Advantages

•Low loss and low noise.

•No pollution, maintenance-free, easy to install and low overall operating cost.

•Small size and light weight.

•High mechanical strength, strong resistance to temperature changes and short circuit resistance.

•Moisture-proof and corrosion-resistant, it can operate in high humidity.

•Economical installation, can be installed in load centers without special foundation.

•Feasibility, reliability, security, stability.

Structural Features

1.CORE：A three-phase three-column laminated core is used, and the three columns are all covered with windings. The left and right magnetic flux phases are different, the core magnetic circuit is unbalanced, and the middle column magnetic circuit is shorter, which reduces the no-load current.

2.WINDING：It is made of H-class film-coated non-woven flat copper wire and epoxy resin insulating material, which is moisture-proof and corrosion-resistant, has small partial discharge, has sufficient dynamic and thermal stability, and will not shift during operation and transportation.

3.CLAMP：Frame structure, the clamping structure bears the clamping force, the gravity of the lifting body and the mechanical force generated when the transformer is short-circuited, ensuring the electromagnetic performance of the cold-rolled electrical steel sheet.

Typical Applications

Comking dry type distribution transformers are widely used in:

• Urban power grids
• Commercial buildings
• Hospitals
• Industrial plants
• Data centers
• Airports
• Railway systems
• Underground transportation facilities
• Renewable energy projects

As global power systems continue to evolve toward safer, smarter, and more sustainable energy networks, dry type transformers are becoming an essential solution for modern power distribution.With advanced epoxy casting technology, reliable performance, and flexible application capability, Comking SC(B) series dry type transformers provide efficient and secure power solutions for various industries.

Comking Electric is committed to delivering reliable electrical equipment and integrated energy solutions that empower a smarter and more sustainable energy future.