SG(B) Series Non-encapsulated Class H Dry-type Transformer

Description

Product Introduction

The SG(B) Series Non-encapsulated Class H Dry-type Transformer is a high-performance dry-type transformer designed for reliable power distribution in industrial and commercial environments. It uses premium high-permeability oriented silicon steel as the core material to support efficient operation, reduced losses and a compact transformer structure.

With Class H insulation, optimized heat dissipation and AN/AF cooling, the transformer is designed to provide stable operation under different load conditions. Its non-encapsulated structure also supports natural ventilation and controllable temperature rise.

The transformer combines electrical performance, energy efficiency, low operating noise and environmental considerations, making it suitable for commercial complexes, public buildings, underground substations and other power distribution systems where continuous and reliable operation is required.

Suzhou Calowen Electric New Energy Co., Ltd. supplies the SG(B) series transformer for industrial and commercial power distribution applications.

Key Product Advantages

1. Class H Insulation System

The SG(B) series adopts Class H insulation and Class C materials to provide a high level of thermal insulation performance. The insulation design supports stable transformer operation and improved resistance to overload and short-circuit conditions.

2. Strong Overload Capability

The transformer is designed to provide improved adaptability under overload conditions. Its insulation system and cooling structure work together to support reliable operation when the transformer experiences changing or increased loads.

3. High-Permeability Oriented Silicon Steel Core

Premium high-permeability oriented silicon steel is used for the transformer core. The optimized core structure helps reduce energy loss while maintaining the required electromagnetic performance.

4. Energy-Saving Core Design

The optimized core technology reduces the transformer volume by approximately 10% compared with the corresponding conventional design. This can help reduce material consumption as well as operating and installation-related costs.

5. Low Loss and Low Noise

The core design and material selection are intended to reduce transformer losses and operating noise. This makes the SG(B) series suitable for environments where energy efficiency and acoustic performance are important considerations.

6. Efficient Heat Dissipation

Open air ducts provide effective ventilation around the transformer components. Combined with AN/AF cooling, the design supports heat dissipation and helps control temperature rise during operation.

7. AN/AF Cooling

The transformer supports AN/AF cooling methods. This cooling configuration provides flexibility for different operating conditions and can improve the transformer's adaptability to changing load requirements.

8. Environmentally Considered Materials

Copper and silicon steel used in the transformer are recyclable materials. The insulation materials are designed with biodegradability considerations, supporting more environmentally conscious power equipment solutions.

9. Non-Encapsulated Structure

The non-encapsulated dry-type construction allows the transformer to use open air ducts for ventilation and heat dissipation. This structure is suitable for applications where efficient cooling and accessible equipment configuration are required.

Technical Specifications

Item	Specification
Product Series	SG(B) Series
Transformer Type	Non-encapsulated dry-type transformer
Insulation Class	Class H
Capacity Range	50 kVA – 2500 kVA
Voltage Level	6 kV / 10 kV / 35 kV
Cooling Method	AN / AF
Core Material	High-permeability oriented silicon steel
Insulation Material	Class H insulation system with Class C materials
Applicable Standards	GB 6450-1986 / IEC 60076-11
Application	Industrial and commercial power distribution

Capacity Range

The SG(B) series covers a capacity range from 50 kVA to 2500 kVA, allowing the series to serve different power distribution requirements.

The available capacity range can be applied to various electrical distribution systems, from smaller commercial installations to larger power distribution requirements. The appropriate transformer capacity should be selected according to system load, voltage level, installation conditions and electrical design requirements.

Voltage Options

The SG(B) series is available for voltage levels of:

• 6 kV

• 10 kV

• 35 kV

The voltage configuration allows the transformer to be integrated into different medium-voltage power distribution systems. Buyers should confirm the required primary and secondary voltage specifications before ordering.

Cooling System

The transformer uses an open air-duct structure combined with AN/AF cooling.

AN cooling supports natural air circulation for normal operating conditions, while AF cooling provides forced-air assistance when additional cooling capacity is required.

This cooling arrangement helps manage temperature rise and improves the transformer's adaptability when operating under increased or changing loads.

Insulation Performance

The SG(B) series uses a Class H insulation system. Class H insulation is designed for applications requiring elevated thermal resistance and reliable insulation performance.

The use of Class C materials within the insulation system further supports resistance to thermal stress, overload and short-circuit conditions.

The insulation configuration should be evaluated together with the installation environment, operating temperature, load profile and applicable electrical requirements.

Energy Efficiency and Core Design

The transformer core uses high-permeability oriented silicon steel. The optimized core structure is designed to reduce core loss while maintaining effective magnetic performance.

According to the supplied technical information, the optimized core technology can reduce the transformer volume by approximately 10%. The smaller structure can contribute to lower material consumption and may also help optimize installation space.

Application Scenarios

The SG(B) series is designed for power distribution applications including:

Large Commercial Complexes

The transformer can be used in large commercial buildings and complexes requiring stable power distribution for lighting, HVAC systems, elevators, equipment and other electrical loads.

Public Buildings

Public buildings can use the transformer for reliable electrical distribution where low noise, safety and continuous operation are important considerations.

Underground Substations

The non-encapsulated dry-type configuration and air-cooling design can be considered for underground substations and other indoor power distribution installations where suitable ventilation and environmental conditions are available.

Continuous Power Distribution

The SG(B) series is suitable for high-reliability continuous power distribution scenarios where stable transformer operation and overload adaptability are required.

Installation and Selection Considerations

Before purchasing an SG(B) series transformer, buyers should confirm the following technical requirements:

• Required transformer capacity

• Primary and secondary voltage levels

• Installation environment

• Cooling requirements

• Load characteristics

• Available installation space

• Applicable electrical standards

• Continuous and overload operating requirements

The final transformer configuration should be selected according to the actual power distribution system and engineering requirements.

Safety and Reliable Operation

As a dry-type transformer, the SG(B) series is designed without the use of liquid insulation oil. Its Class H insulation, open air ducts and AN/AF cooling system support safe and reliable operation in suitable indoor power distribution environments.

The transformer should be installed, commissioned and maintained by qualified electrical professionals according to applicable standards and project requirements.

B2B Supply Information

Suzhou Calowen Electric New Energy Co., Ltd. provides SG(B) series non-encapsulated Class H dry-type transformers for industrial and commercial power distribution projects.

The product series offers capacity options from 50 kVA to 2500 kVA and voltage levels of 6 kV, 10 kV and 35 kV. Buyers can select the appropriate configuration according to their power distribution requirements.

For project-based procurement, buyers can provide required capacity, voltage level, installation environment and cooling requirements when requesting product information or quotation.

Product Summary

Combining Class H insulation, high-permeability oriented silicon steel, optimized core technology and AN/AF cooling, the SG(B) Series Non-encapsulated Class H Dry-type Transformer is designed for efficient and reliable power distribution in commercial buildings, public facilities, underground substations and continuous power supply applications.

For industrial power distribution projects and transformer procurement requirements, buyers can contact Suzhou Calowen Electric New Energy Co., Ltd. for technical specifications and configuration details.

The SG(B) Series Non-encapsulated Class H Dry-type Transformer offers a capacity range of 50–2500 kVA with 6 kV, 10 kV and 35 kV voltage options for different power distribution requirements.