Transformer Radiator Solution for the SolarCentury Kanona Solar Power Plant

The SolarCentury Kanona solar power plant project in Zambia required a radiator configuration for an SF20-63000/110 oil-immersed transformer serving the power conversion and transmission requirements of the station. Jiangsu Tengqi Electric Power Technology Co., Ltd., operating under the TengQi Technology brand, supplied panel radiators designed to support forced-air cooling, transformer-specific structural matching, and outdoor application conditions.

Project Context and Cooling Requirements

In a solar power plant, transformers perform an essential role in voltage conversion, power transmission, and grid connection. During operation, an oil-immersed transformer generates heat that must be transferred from the oil system to the surrounding environment through an appropriate cooling arrangement. The radiator system is therefore an important external component of transformer thermal management.

For the Kanona project, the radiator solution needed to align with the transformer’s installation structure, connection interfaces, and dimensional requirements, while supporting cooling operation in an outdoor, high-temperature solar power station environment. Surface protection and installation coordination were also relevant considerations for the project supply.

Radiator Configuration

Cooling and Structural Matching Approach

The supplied panel radiators form part of the transformer cooling system. Heat transferred through the transformer oil is released through the radiator surface to the surrounding air. Under forced-air cooling conditions, airflow across the radiator surface enhances air-side heat exchange and provides cooling support for transformer operation.

The configuration was developed around the matching transformer structure and project installation requirements. Radiator dimensions, centre distances, and connection interfaces were coordinated with the transformer arrangement to support system connection and on-site installation. This project-specific matching is particularly important where radiator assemblies must integrate with the transformer body and associated cooling equipment.

Outdoor Protection and Manufacturing Coordination

For outdoor deployment at the solar power station, the radiators were specified with a 65 μm hot-dip galvanized surface treatment. This configuration was selected to address the project’s stated outdoor protection requirement. Actual protection performance remains dependent on local climate conditions, installation practice, operating conditions, maintenance, and the applicable project technical requirements.

• Transformer-specific radiator dimensions, centre distances, and interface coordination
• Forced-air cooling support for oil-immersed transformer thermal management
• SPCC steel construction with 1.2 mm material thickness
• Hot-dip galvanized surface protection for the designated outdoor application
• Manufacturing and supply coordination for installation of the transformer radiator system

Project Value

The project demonstrates the role of panel radiators in solar power plant transformer applications, where thermal management must be considered alongside structural compatibility, outdoor surface protection, transport, and installation requirements. The completed supply included 17 radiator sets matched to the SF20-63000/110 transformer configuration for the SolarCentury Kanona solar power plant in Zambia.

As a transformer radiator manufacturer and cooling solution provider, TengQi Technology supports oil-immersed transformer projects through product selection, design coordination, customized manufacturing, quality verification, and delivery support. Product structure, thermal performance, inspection requirements, and delivery arrangements for each project are subject to approved drawings, technical agreements, and mutually confirmed documentation.