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Case

Cast Resin Dry-Type Transformers for a New Industrial Plant in Minsk, Belarus

2026-08-20 0 Comments

cast resin dry type transformer

Project Overview

Location: Minsk, Belarus

Project Type: New-build industrial manufacturing plant

Equipment: Cast resin dry-type transformers for complete plant power distribution

A newly constructed industrial manufacturing plant in Minsk, Belarus required a safe, reliable and efficient power distribution solution for production lines, industrial machinery, lighting systems and automatic control equipment. Because the facility operates in a demanding industrial environment with high requirements for fire safety, operational stability and continuous power supply, the transformer system needed to provide dependable performance with minimal maintenance.

Considering the indoor installation environment and the need to reduce fire and oil-leakage risks, ZTELEC vacuum cast resin dry-type transformers were selected for the plant's power distribution system.

Project Challenges

Indoor Installation and Fire Safety

The transformers were installed inside an industrial workshop with workers, production equipment and electrical systems in close proximity. Oil-filled transformers were not the preferred option because of potential oil leakage and fire-related risks. An oil-free transformer solution with strong fire-resistant characteristics was therefore required.

Cold and Humid Climate

Minsk experiences cold winters and significant seasonal temperature variations. Indoor electrical equipment may also be exposed to condensation and elevated humidity. The transformer system therefore needed strong insulation performance and reliable operation under cold and humid ambient conditions.

Continuous Industrial Operation

The manufacturing plant relies on continuous production lines and power-intensive machinery. Unexpected transformer failures or prolonged maintenance could result in production interruptions and financial losses. High reliability, strong overload adaptability and low routine maintenance requirements were key project considerations.

Limited Installation Space

The plant's electrical room had limited available space. The selected transformers needed to provide the required electrical capacity while maintaining a compact and practical installation footprint.

ZTELEC Cast Resin Dry-Type Transformer Solution

ZTELEC supplied vacuum cast resin dry-type transformers for the plant's main power distribution system. The transformers were designed to provide stable electrical power for production equipment, machinery, lighting and automatic control systems while meeting the project's indoor safety and reliability requirements.

Oil-Free and Fire-Resistant Design

Unlike oil-filled transformers, cast resin dry-type transformers use solid epoxy resin insulation instead of liquid insulating oil. This oil-free construction significantly reduces the risk associated with oil leakage and supports safer indoor installation in industrial facilities, workshops and other occupied buildings.

Encapsulated Epoxy Resin Windings

The transformer windings are encapsulated with epoxy resin through a vacuum casting process. The encapsulated insulation system helps protect the windings against moisture, dust and environmental contamination, making the transformers suitable for demanding industrial environments and cold, humid climates.

Reliable Performance Under Industrial Loads

Industrial production equipment can create fluctuating electrical loads and short-duration high-current conditions. ZTELEC cast resin dry-type transformers offer strong short-circuit withstand capability and stable electrical performance, helping maintain dependable power distribution for continuously operating production systems.

Compact Installation

The compact dry-type transformer design helps optimize the available space inside the plant's electrical room. This provides greater flexibility during equipment layout and simplifies installation and integration into the new-build power distribution system.

Project Results and Benefits

Improved Plant Safety

The oil-free cast resin transformer design reduces risks associated with transformer oil leakage and supports safer power distribution in indoor industrial environments.

Adaptability to Local Climate

The encapsulated epoxy insulation system provides effective protection against moisture and environmental contamination, helping the transformers maintain stable performance under the cold and humid conditions encountered in Minsk.

Reliable Power for Production

Stable transformer operation supports continuous power supply to manufacturing equipment, production lines, lighting and automatic control systems, helping reduce the possibility of power-related production downtime.

Reduced Maintenance Requirements

Because cast resin dry-type transformers do not use insulating oil, they eliminate routine oil-related maintenance activities such as oil-level inspection and oil leakage management. This helps reduce ongoing maintenance workload for industrial plant operators.

Professional Commissioning Support

ZTELEC provided complete factory test documentation and technical support for project commissioning. This helped the project team verify transformer performance and complete the installation and commissioning process efficiently.

Why Cast Resin Dry-Type Transformers for Industrial Plants?

For modern manufacturing facilities, transformer selection involves more than electrical capacity. Fire safety, environmental conditions, available installation space, maintenance requirements and long-term operating reliability all need to be considered.

Cast resin dry-type transformers offer an effective solution for industrial plants where indoor safety, moisture resistance, compact installation and reliable power distribution are important. Their oil-free construction makes them particularly suitable for factories, commercial buildings, data centers, infrastructure projects and other facilities where fire risk and maintenance requirements must be minimized.

The Minsk industrial plant project demonstrates the advantages of using ZTELEC cast resin dry-type transformers for modern industrial power distribution. With oil-free construction, encapsulated epoxy insulation, strong short-circuit performance, compact design and low maintenance requirements, the transformers provide a reliable power solution for demanding manufacturing environments.

For industrial projects in Belarus and other regions with challenging climatic conditions, ZTELEC can provide customized dry-type transformer solutions, factory testing documentation and technical support to help ensure safe and reliable plant commissioning.

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