Project Overview

The TATUNG Kaohsiung Intercontinental Terminal Transformer Project supports power capacity expansion for a new container distribution market associated with Kaohsiung Port in Taiwan. As the capacity of the existing container distribution facility became insufficient for growing operational demand, the project introduced new transformer capacity and related power infrastructure for the terminal area.

The transformer system comprises two 32/40MVA, 161kV-22.8kV transformers with associated bushings for substation operation. TengQi Technology, the brand of Jiangsu Tengqi Electric Power Technology Co., Ltd., supplied customized panel radiators as part of the transformer cooling system package.

Project Scope at a Glance

Cooling System Supply

TengQi Technology supplied 12 sets of PC3000-35/520 panel radiators for the 161kV-22.8kV transformer system. As components of an oil-immersed transformer cooling system, panel radiators increase the heat-exchange surface area and support the dissipation of operating heat from the transformer to the surrounding environment.

The supply scope was limited to transformer radiator equipment and related project adaptation. It did not include complete transformers or other electrical equipment packages.

Radiator Configuration

Design Considerations for Port Power Infrastructure

Port and container distribution applications require power infrastructure that can be coordinated with outdoor site conditions and the layout of the transformer system. For this project, radiator interfaces and structural dimensions were adapted to the transformer configuration, allowing the radiator assembly to align with the equipment arrangement and installation requirements.

• Transformer interface coordination: center distance, panel quantity, panel width and connection arrangement were configured for the project transformer system.
• Outdoor corrosion protection: the coating system was selected for C3 medium corrosion environment requirements, where industrial influence, rain, condensation and temperature variation may affect exposed equipment.
• Consistent batch supply: 12 radiator sets were manufactured to a unified project configuration to support equipment matching, installation preparation and subsequent energization planning.
• Cooling system function: the panel radiators provide the heat dissipation interface required by the oil-immersed transformer cooling arrangement.

C3 Corrosion Protection Approach

The radiator sets use a hot-dip galvanized and painted composite protection system with a total coating thickness of 195μm. This configuration addresses the C3 medium corrosion environment specified for the project and is intended for outdoor operating conditions.

For steel transformer radiators, corrosion protection requires particular attention to exposed steel surfaces, weld areas, edges and structural transition zones. The galvanized layer provides fundamental protection for the steel substrate, while the external paint layer adds a barrier against moisture, oxygen and environmental contaminants. Actual corrosion performance remains dependent on surface preparation, coating quality, thickness control, transportation and installation conditions, site exposure and subsequent maintenance.

Project Contribution

By adding transformer capacity and associated supporting equipment, the project establishes power supply conditions for the new container distribution market at Kaohsiung Intercontinental Terminal. The supplied panel radiators form an integral part of the transformer thermal management arrangement for the 161kV-22.8kV system.

• Supports the power capacity requirements arising from the expansion of container distribution facilities.
• Provides configured radiator equipment for two 32/40MVA transformer units.
• Addresses outdoor C3 corrosion protection requirements through a galvanized and painted coating structure.
• Supports equipment matching, installation and preparation for subsequent commissioning.

Project Status and Technical Support

The relevant project equipment has been installed and is awaiting the customer’s power supply arrangement and subsequent commissioning.

TengQi Technology focuses on heat dissipation technology and panel radiator manufacturing for large oil-immersed transformers and reactors. For project-based requirements, the company can support technical consultation, product selection, design coordination, sample development, customized manufacturing, quality verification, delivery and after-sales technical support. Material selection, structural parameters, coating systems, inspection requirements and delivery arrangements are confirmed according to the applicable project technical documents and mutually agreed specifications.