Product Overview

PC2800(2200)-29(3)/520 Swan Neck Radiator for HV transformer

TengQi Technology’s gooseneck plate radiator supports 110 kV and 220 kV oil-immersed transformers in cold, humid and polluted outdoor environments, reducing accessory interference and simplifying on-site servicing for data center and compact transformer projects.

Natural Cooling Surface Area
47.01 m²
Product Model
PC2800(2200)-29(3)/520
Transformer Compatibility
110 kV and 220 kV oil-immersed power transformers
Product Type
Gooseneck plate radiator for oil-immersed power transformers
Product Type
Gooseneck plate radiator Oil-immersed transformer radiator High-voltage transformer cooling component
Application Scenarios
Data center transformer projects Compact outdoor transformer layouts Cold-region substations Accessory-congested transformer installations
Environmental Suitability
-40°C outdoor operation C4 corrosivity environments e-class heavy pollution High-humidity freeze-thaw conditions
Structural Features
Staggered long and short radiator panels Removable flange structure Low-temperature NBR seals Continuous seam welding

Product Highlights

Clearance-Oriented Panel Layout
Serviceable Flange Structure
Cold-Climate Configuration
C4 Corrosion Protection
Project-Specific Engineering Support

Product Parameters

Center Distance
Long piece 2800mm, short piece 2200mm
Number of Pieces
29+3
Piece Width
520
Weight
829kg
Oil Weight
244.1kg
Self Cooling Area
47.01㎡
Coating
Hot-dip galvanized
Total Film Thickness
60μm

Product Details

Product Details

HIGH-VOLTAGE TRANSFORMER RADIATOR

PC2800(2200)-29(3)/520 Swan-Neck Panel Radiator

PC2800(2200)-29(3)/520 is a high-voltage transformer radiator developed by TengQi Technology (TQT) for 110 kV and 220 kV oil-immersed power transformers. Its swan-neck configuration combines staggered long and short panels with detachable flanges, providing heat dissipation capacity while reserving installation clearance for bushings, connecting pipework, valves and external accessories. It is suitable for outdoor projects with low temperatures, high humidity, freeze-thaw exposure, heavy pollution and compact equipment layouts.

KEY OPERATING CONDITIONS

-40°C to +40°C

C4 corrosion protection · Class e heavy pollution

Long panels: 2800 mm / Short panels: 2200 mm

Why Large Transformer Projects Need a Swan-Neck Radiator Design

Radiator layouts for large oil-immersed transformers must meet cooling and oil-circulation requirements while accommodating bushings, piping, valves, external accessories, lifting operations and maintenance access. In compact layouts, conventional equal-length panels can interfere with surrounding components. The PC2800(2200)-29(3)/520 uses locally shortened panels to create dedicated clearance zones for complex external arrangements.

Compact Equipment Layouts

The staggered long- and short-panel arrangement creates local clearance for bushings, connecting lines and accessories within limited installation space.

Cold and Freeze-Thaw Environments

Low-temperature sealing materials and continuous welds support structural reliability in cold, condensation and thermal-cycling conditions.

High Humidity and Heavy Pollution

Hot-dip galvanizing, C4 corrosion protection and stainless-steel fasteners are specified for humid, snowy, salt-laden and heavily polluted outdoor environments.

Core Design Features and Environmental Performance

This swan-neck panel radiator is engineered for spatial compatibility, maintainability, low-temperature operation and outdoor corrosion resistance.

Staggered Long and Short Panels

The radiator includes 29 long panels and 3 short panels, with centre distances of 2800 mm and 2200 mm respectively. The shortened section provides clearance for bushings, pipework and related accessories.

Detachable Flange Design

Individual radiator units use detachable flange connections for independent installation and removal, simplifying maintenance, lifting coordination and equipment servicing.

Low-Temperature Sealing and Continuous Welds

Low-temperature nitrile rubber sealing is suitable for ambient temperatures from -40°C to +40°C. Continuous welding improves structural integrity under cold, condensation and freeze-thaw cycling.

C4 Outdoor Corrosion Protection

The radiator is hot-dip galvanized with a total coating thickness of 60 μm, specified for C4 corrosivity and Class e heavy pollution. A4-80 grade 316 stainless-steel fasteners improve resistance in humid, snowy and chloride-containing environments.

Compatible Transformers and Typical Applications

PC2800(2200)-29(3)/520 is designed primarily for 110 kV and 220 kV oil-immersed power transformers. Model selection should be confirmed according to transformer thermal load, oil-circuit design, connection dimensions, installation space and environmental classification.

Data Center Transformers

Suitable for oil-immersed transformers supporting European and Nordic data center projects with compact equipment arrangements.

Cold-Climate Outdoor Substations

Suitable for outdoor power facilities in high-latitude areas or locations with prolonged winter temperatures and large day-night temperature variations.

Humid and Heavily Polluted Areas

Designed for C4 corrosion environments and Class e heavy pollution, including installations exposed to persistent humidity, snow, de-icing salt spray or chloride ions.

Accessory-Dense Transformer Layouts

Suitable where bushings, valves, connecting pipework or external accessories occupy significant space and require reduced interference around the radiator zone.

PC2800(2200)-29(3)/520 Technical Drawing

PC2800(2200)-29(3)/520 Swan-Neck Transformer Radiator Technical Drawing

PC2800(2200)-29(3)/520 Quality Inspection Report

PC2800(2200)-29(3)/520 Swan-Neck Transformer Radiator Quality Inspection Report

From Technical Selection to Project Delivery

As a specialist manufacturer of transformer cooling equipment, TengQi Technology supports radiator integration based on project-specific transformer design data. Our services connect radiator construction, interface requirements, manufacturing verification and delivery planning with project technical documentation.

Technical Consultation and Model Selection

Confirm suitable radiator configurations based on voltage rating, thermal load, ambient conditions, installation space and corrosion protection requirements.

Interface and Structural Coordination

Coordinate flange interfaces, clearance requirements, piping relationships and site layout conditions to support reliable equipment integration.

Prototype Development and Quality Validation

Support prototype development, manufacturing process control and quality validation in accordance with project specifications and agreed acceptance requirements.

Batch Manufacturing and Delivery Support

Leverage TQT's panel radiator manufacturing and project execution capabilities for batch production, delivery coordination and technical support.

Project Value

This C4-protected radiator is designed not only for heat dissipation area, but also for installation, maintenance and weather resistance requirements of high-voltage oil-immersed transformers in demanding outdoor environments.

  • Improved installation compatibility: Staggered panel lengths reduce structural interference with bushings, piping and external accessories.
  • Supports maintenance planning: Detachable flanges enable independent radiator-unit removal where site conditions permit.
  • Configured for cold and humid environments: Low-temperature seals, continuous welds and hot-dip galvanizing provide a sound basis for freeze-thaw, condensation and humid outdoor service.
  • Streamlined project coordination: Defined model parameters, environmental conditions and structural features support communication among transformer manufacturers, EPC contractors and utility project teams.

For Transformer Projects Requiring Clearance and Weather Resistance

PC2800(2200)-29(3)/520 is suitable for 110 kV and 220 kV oil-immersed transformer projects with specific requirements for compact layouts, low-temperature operation, C4 corrosion protection, high humidity, freeze-thaw exposure or heavy pollution. TengQi Technology provides radiator product support matched to actual technical conditions for transformer manufacturers, EPC contractors, utilities and project stakeholders. Final interface details, thermal performance, inspection requirements, delivery conditions and after-sales arrangements shall be subject to project design data and mutually confirmed technical documentation.

Jiangsu Tengqi Electric Power Technology Co., Ltd.

Company Profile

6,500 Tons
Monthly Production Capacity
10+
Production Lines
20+
Years of Industry Experience
56,000 m²
Manufacturing Area

Manufacturing & Delivery Capabilities

Engineering Customization
Radiator selection and custom non-standard designs based on transformer specifications, installation dimensions, and operating conditions.
Smart Manufacturing System
Core manufacturing processes include laser cutting, automated welding, surface treatment, and automated coating.
End-to-End Quality Control
Multi-stage inspection covering leak testing, dimensions, welding, and coatings, with third-party inspection support available.
Global Project Delivery
Technical and delivery support for global OEMs, EPC contractors, power grids, and renewable energy projects.
ENGINEERING & MANUFACTURING

Need Radiator Selection or Custom Engineering Support?

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