Product Overview

PG1200-27/520 Fixed Radiator

TengQi Technology's PG1200-27/520 fixed plate radiator is used for 10kV and 35kV oil-immersed distribution transformers, and can also be used with some small and medium-capacity 110kV and industrial special transformers when technical conditions match. The overall welded and powder-coated anti-corrosion structure is suitable for fixed installation scenarios such as urban and rural power distribution, outdoor pole-mounted, platform-type and box-type substations.

Main structure and coating
Overall welded structure, SPCC material, RAL7035 powder coating
brand
TengQi Technology (TQT)
Compatibility range
10kV and 35kV oil-immersed distribution transformers; some small and medium capacity 110kV power transformers need to be confirmed according to technical specifications.
Product Name
PG1200-27/520 Fixed Plate Heatsink
Product Type
Fixed Panel Radiator Oil-immersed transformer heat dissipation components PG1200-27/520
Applicable Scenarios
Urban and rural power distribution networks Outdoor pole-mounted transformer benchtop transformer Prefabricated substation
Adapter devices
10kV oil-immersed distribution transformer 35kV oil-immersed distribution transformer Small and medium capacity 110kV power transformers Industrial special transformers
Structure and Protection
All-Welded Structure SPCC steel RAL7035 powder coating Fixed installation cooling

Product Core Highlights

All-Welded Structure
Fixed installation adapter
Powder coating for corrosion protection
Reduce maintenance consumables
Support project-based confirmation

Product Parameters

Center Distance
1200mm
Number of Blades
25
Blade Width
520mm
Material
SPCC
Thickness
1.2mm
Weight
298.5 kg
Self-cooling Heat Dissipation Area
17.61 ㎡
Oil Weight
75.97 kg
Coating
Spray Plastic RAL7035
Total Film Thickness
180μm

Product Details

Product Details

FIXED TRANSFORMER RADIATOR

PG1200-27/520 Fixed Panel-Type Radiator

The PG1200-27/520 is a fixed cooling component for oil-immersed transformers supplied by TengQi Technology (TQT). Its panel-type heat-exchange structure increases the cooling surface between transformer oil and ambient air, providing fixed cooling support for 10 kV and 35 kV oil-immersed distribution transformers. When transformer capacity, thermal load, tank connections, and installation conditions are compatible, it can also be used for selected small and medium-capacity 110 kV power transformers, rectifier transformers, traction transformers, and other industrial specialty transformers.

Product Positioning

  • Product Type: PG-type fixed panel radiator
  • Main Application: Heat dissipation and fixed cooling for oil-immersed transformers
  • Construction: Fully welded design for fixed connection requirements
  • Typical Applications: Urban and rural distribution, outdoor distribution, package substations, and industrial installations

WHY FIXED COOLING MATTERS

Cooling Requirements for Permanently Installed Equipment

Oil-immersed transformers continuously release heat through oil circulation and cooling components during operation. In fixed-installation applications such as pole-mounted transformers, platform-mounted transformers, package substations, and conventional distribution facilities, a radiator must provide heat-transfer area matched to the equipment thermal load while also addressing oil circuit connections, structural stability, coating protection, and future inspection and maintenance. The PG1200-27/520 uses a fixed panel-type structure for these supporting requirements.

Heat-Transfer Area Matching Cooling area should be coordinated with transformer capacity, oil temperature, and system thermal load rather than selected only by external dimensions.
Fixed Connection Compatibility Tank connections, center distance, installation space, and equipment load-bearing conditions affect the connection design.
Outdoor Environmental Considerations Hot and humid conditions, rain, dust, and mildly corrosive environments require confirmation based on the coating system and site conditions.

CORE PRODUCT CAPABILITIES

Core Structural Features of Fixed Panel-Type Radiators

The PG1200-27/520 is structurally configured for the fixed cooling requirements of oil-immersed transformers. Its value lies not only in increasing heat-dissipation surface area, but also in reducing sealing points, supporting fixed installation, and providing a foundation for outdoor coating protection.

Fully Welded Construction

The fully welded design reduces conventional sealing points and gasket use, helping lower the risk of oil leakage during long-term operation. Weld quality and sealing performance shall be verified according to product inspection requirements and project acceptance conditions.

Panel-Type Natural Cooling

Radiator panels form heat-transfer surfaces exposed to air, allowing heat from transformer oil to be released into the surrounding environment. The 17.61 m² natural cooling area is the baseline parameter for this model; actual cooling performance remains dependent on operating conditions.

Powder-Coated Corrosion Protection

The radiator is finished with RAL 7035 powder coating with a total film thickness of 180 μm, providing a basis for surface protection in outdoor environments. Available information indicates that this coating system can meet C4 corrosion-protection requirements; the applicable corrosion class shall be subject to order technical documents and test records.

Routine Maintenance Accessibility

The fixed structure reduces reliance on commonly consumed sealing materials and helps simplify routine maintenance considerations. During operation, the appearance, connections, coating condition, and oil circuit should still be inspected in accordance with transformer maintenance procedures.

APPLICATION CONDITIONS

Application Scenarios and Environmental Compatibility

This fixed transformer cooling component is suitable for oil-immersed transformer projects requiring permanent installation. For locations with high temperature and humidity, cold and damp conditions, dust, or certain corrosive factors, cooling area, coating system, installation layout, and site protection conditions should be evaluated together during product selection.

Urban and Rural Distribution Networks Designed for 10 kV and 35 kV oil-immersed distribution transformers, providing fixed cooling support for conventional distribution equipment.
Pole-Mounted and Platform-Mounted Installations Suitable for outdoor fixed installations. Equipment load capacity, interfaces, layout space, and site installation conditions should be checked before application.
Package Substations Can be supplied as a cooling component for oil-immersed transformers in package substations, meeting fixed connection and outdoor protection requirements.
Industrial Specialty Transformers May be used for rectifier transformers, traction transformers, and similar projects when technical conditions are compatible, subject to confirmation of thermal load and interface design.
Project Compatibility Note: For hot and humid environments, project requirements may call for increased cooling area, an epoxy powder corrosion-protection system, optimized fin channels, and coordinated dustproof, waterproof, or anti-condensation design. These features shall be determined by project location, equipment structure, and technical agreement and are not standard for every order.

PG1200-27/520 Technical Drawing

PG1200-27/520 Fixed Transformer Radiator Technical Drawing

PG1200-27/520 Quality Inspection Report

PG1200-27/520 Fixed Transformer Radiator Quality Inspection Report

PROJECT COLLABORATION

From Selection Data to Product Supply

Selection of fixed panel-type radiators must align with transformer operating and structural conditions. TengQi Technology provides coordinated services including technical consultation, product selection, R&D design, sample development, volume manufacturing, quality verification, delivery, and after-sales technical support for panel-type radiator products, helping buyers verify model parameters against actual equipment conditions.

  1. 1Confirm Basic Operating Conditions: Provide rated voltage, transformer capacity, cooling method, oil temperature, system thermal load, and related information.
  2. 2Verify Structural Interfaces: Assess compatibility with tank structure, center distance, connection method, installation space, and load-bearing conditions.
  3. 3Define Environmental and Coating Requirements: Confirm coating and environmental compatibility based on indoor or outdoor location, climatic conditions, and corrosion-protection requirements.
  4. 4Execute Supply Through Technical Documentation: Final dimensions, inspection items, packing, transportation, and service arrangements shall be subject to mutually confirmed drawings, technical agreements, and commercial contracts.

COMPATIBILITY AND VALUE

Target Customers and Product Value

The PG1200-27/520 is designed for B2B buyers sourcing fixed cooling components for oil-immersed transformers and working with defined equipment parameters or project technical specifications. Its identifiable structural parameters, fixed-connection design, and surface-protection configuration provide a foundation for transformer accessory procurement, equipment integration, and project delivery.

Suitable Buyers

  • Transformer manufacturers and sourcing teams
  • Power equipment integrators and EPC contractors
  • Utilities and power distribution project developers
  • Renewable energy and industrial power project customers

Supporting Value

  • Panel-type structure supporting natural cooling of oil-immersed equipment
  • Fully welded construction reducing dependence on conventional sealing consumables
  • Powder coating supporting evaluation of outdoor protection requirements
  • Model documentation supporting interface and operating-condition verification

Recommended Pre-Selection Checks

  • Tank connections and actual installation space
  • Thermal load, ambient temperature, and cooling method
  • Coating, corrosion-protection, and protection-rating requirements
  • Order quantity and project delivery documentation requirements

Build a Clear Technical Foundation for Fixed Transformer Cooling

The PG1200-27/520 fixed panel-type radiator combines fully welded construction, natural panel cooling, and powder-coated protection for fixed cooling applications of oil-immersed transformers. With panel radiator R&D, intelligent manufacturing, and project coordination capabilities, TengQi Technology can support product selection and supply based on confirmed equipment data. This product is not a complete transformer or other complete power equipment. Final compatibility shall be determined by project drawings, technical agreements, and actual operating conditions.

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

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