Oil-Immersed Transformers · Distribution

31500 kVA 35kV Three-Phase Oil-Immersed Power Transformer

This 31500 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility, industrial, and infrastructure projects. It provides stable electrical performance, reliable oil-based cooling, and flexible configuration options for low-voltage outputs, frequency requirements, and accessory selections.

Especificações Técnicas

Capacidade Nominal 500 kVA
Primary Voltage (U1) 11,000 V (11 kV)
Secondary Voltage (U2) 415 V / 240 V (3-Phase 4-Wire)
Vector Group Dyn11
Frequência Nominal 50 Hz
Método de Resfriamento ONAN (Oil Natural Air Natural)
Primary Current (I1) 8.75 A
Secondary Current (I2) 695.6 A
Guaranteed No-Load Loss (P0) 680 W
Guaranteed Load Loss (Pk at 75°C) 4600 W
Short-Circuit Impedance (Uk) 4.0%
HV Insulation Level LI 75 / AC 35 (11kV Class)
Temperature Rise Limits Top Oil ≤ 50K, Winding ≤ 55K (45°C Ambient)
Creepage Distance ≥ 31 mm/kV (Outdoor Tropicalized Porcelain)
Core & Coil Weight 920 kg
Insulating Oil Weight 580 kg
Total Assembled Weight 1850 kg
Overall Footprint (L×W×H) 1410 mm × 925 mm × 1550 mm
Governing Standards IEC 60076, BS 171, SON NIS, NERC Code

Pricing & Availability

Reference FOB Price

USD 272000

Public Marketplace Range

$122,000 – $313,000

Based on public listings. Often lead-generation or minimum-config prices — not full-scope.

Minimum Order

1 Set

Units in Stock

5

Model / Series

IEC standard

Indicative export reference only. Final offer depends on voltage, standards, materials, accessories, and project scope. Request a firm quote →

Informações do Produto

Status

Publicado

ID do Produto

31500_KVA_35KV_THREE_PHASE_OIL_IMMERSED_POWER_TRANSFORMER

Última Atualização

2026-04-06 00:58:36.832469

Technical Highlights

  • This product combines dependable transformer platform design, flexible project configuration, and practical export-oriented construction. It is suitable for applications requiring stable electrical performance, configurable voltage ratios, outdoor durability, and documentation support for international project supply.

Application Scenarios

  • Utility substations
  • Industrial plants and heavy-load facilities
  • Infrastructure and public utility projects
  • Regional transmission and distribution networks
  • Commercial and industrial power systems

Key Features

  • 31500 kVA rated capacity for medium- to large-scale transmission and distribution projects
  • high-voltage design suitable for substations and industrial power systems
  • Oil-immersed structure for stable cooling performance and dependable long-term operation
  • Available with copper or aluminum windings according to project and budget requirements
  • Suitable for IEC-based specifications and project-oriented customization
  • Outdoor installation design with configurable accessories and protection devices

Optional Configurations

  • Low-voltage side rating and voltage ratio
  • Frequency: 50 Hz or 60 Hz
  • Vector group and tapping range
  • Copper or aluminum winding
  • Cooling method, accessory package, and monitoring option
  • Tank structure, coating system, and special environmental adaptation
  • Color, nameplate language, and document package
  • Ambient temperature, altitude, and installation condition adaptation

Perguntas Frequentes

Please send us your required capacity, high voltage, low voltage, frequency, cooling preference, and installation conditions for the 31500 kva three-phase oil-immersed power transformer. Our team can recommend a suitable configuration and provide a quotation based on your project requirements.

The product can be produced according to IEC standards and customer technical specifications. Routine factory tests, inspection records, and technical documentation can be provided before shipment. Optional configurations for project-specific grid, environmental, and accessory requirements are available upon request.

Minimum order quantity is 1 Set. The product is prepared for export shipment with suitable packing and transport arrangements based on destination and handling requirements. Technical documents, test reports, nameplate confirmation, and pre-shipment support can be supplied according to order requirements. OEM/ODM support and project-based coordination are available for qualified inquiries.

Normas e Conformidade

The product can be produced according to IEC standards and customer technical specifications. Routine factory tests, inspection records, and technical documentation can be provided before shipment. Optional configurations for project-specific grid, environmental, and accessory requirements are available upon request.

Embalagem, Entrega e Serviço

The product is prepared for export shipment with suitable packing and transport arrangements based on destination and handling requirements. Technical documents, test reports, nameplate confirmation, and pre-shipment support can be supplied according to order requirements. OEM/ODM support and project-based coordination are available for qualified inquiries.

Please send us your required capacity, high voltage, low voltage, frequency, cooling preference, and installation conditions for the 31500 kva three-phase oil-immersed power transformer. Our team can recommend a suitable configuration and provide a quotation based on your project requirements.

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