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CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
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CEEG 220kV Oil-Immersed Power Transformer
The 220kV oil-immersed power transformer is widely used in high-temperature and high-load operating environments. It is designed to withstand heavy loading conditions while effectively handling load fluctuations and sustained overload challenges. This transformer is particularly suitable for industries requiring highly reliable and continuous power supply, such as steel plants, metallurgy, railways, power plants, and hydropower stations. It ensures stable system operation and enhances the safety and reliability of electrical power transmission.
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
CEEG 220kV Oil-Immersed Power Transformer - High Voltage Grid-Level Transformer with Low Loss and Low Noise
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Scope of application
Main Grid Hub
Used in regional transmission and substation hub systems, with a strong focus on partial discharge control and long-term operational reliability.
Main Grid Hub
Energy Generation Base
Applied in large-scale power evacuation projects, emphasizing low energy loss and optimized design for extended service life.
Energy Generation Base
Inter-Regional Power Transmission
Suitable for long-distance transmission corridors, focusing on stable performance and reliable continuous operation over extended periods.
Inter-Regional Power Transmission
Product Description
Product Description
1 Fully Enclosed Clean Manufacturing Process:Produced in a temperature- and humidity-controlled, dust-free environment with strict process control to ensure higher manufacturing consistency and product quality.
CEEG 220kV Oil-Immersed Power Transformer
2 Seven-Level Thermal Control Optimization:Advanced seven-stage temperature control system combined with thermal field simulation ensures optimized insulation configuration and precise temperature management.
CEEG 220kV Oil-Immersed Power Transformer
3 Segmented Noise Reduction Design:Targeted noise control measures are applied to different noise sources, resulting in operating noise levels that outperform national standards.
CEEG 220kV Oil-Immersed Power Transformer
4 Multi-Layer Sealing Verification:Uses one-piece molded sealing components combined with fluorescent inspection and positive/negative pressure leak testing, significantly reducing the risk of oil leakage.
CEEG 220kV Oil-Immersed Power Transformer
5 Advanced Core Manufacturing Technology:Equipped with imported transverse cutting and fully automated core stacking lines, reducing no-load losses by approximately 20% compared to conventional processes.
CEEG 220kV Oil-Immersed Power Transformer
6 Short-Circuit Performance Validation:Successfully passed national certified laboratory sudden short-circuit tests on the first attempt, demonstrating superior structural strength and operational reliability.
CEEG 220kV Oil-Immersed Power Transformer
Product Features
CEEG 220kV Oil-Immersed Power Transformer

Low Loss Performance

  • Exceeds Efficiency Standards: Reduces no-load losses by more than 10% and load losses by over 5% compared with current national standards.
  • Compliant Performance: Ensures overall operating performance fully meets and complies with energy efficiency requirements.
CEEG 220kV Oil-Immersed Power Transformer

Low Noise Design

  • Quiet Natural Cooling: Controls noise levels below 60 dB under natural cooling conditions.
  • Custom Low-Noise Solutions: Offers tailored, ultra-low-noise transformer solutions upon request for special application requirements.
CEEG 220kV Oil-Immersed Power Transformer

Enhanced Thermal Dissipation

  • Optimized Thermal Reduction: Combines high-quality insulating oil with an advanced cooling structure to effectively reduce overall operating temperatures.
  • Extended Longevity & Reliability: Lowers thermal stress to help extend service life and improve long-term system reliability.
CEEG 220kV Oil-Immersed Power Transformer

High Reliability

  • Robust Short-Circuit Resilience: Features a strong short-circuit withstand capability to ensure stable and secure operation under heavy fault conditions.
  • Superior Environmental Adaptability: Engineered to deliver dependable, long-term performance even in complex and demanding power grid environments.
CEEG 220kV Oil-Immersed Power Transformer

Leak-Proof Sealing Design

  • Advanced Leak Prevention: Features an optimized tank structure and sealing system that significantly reduce the risk of oil leakage.
  • Durable Outdoor Performance: Engineered for high reliability, making the transformer perfectly suited for long-term outdoor operation.
CEEG 220kV Oil-Immersed Power Transformer

Online Monitoring System

  • Comprehensive Intelligent Monitoring: Supports real-time online monitoring of critical parameters, including oil temperature, winding temperature, gas conditions, and partial discharge.
  • Proactive Outage Reduction: Enables early fault warnings to facilitate timely maintenance, significantly reducing the risk of unplanned outages.
Main Parameters
Rated Capacity 50 kVA – 1000 MVA
Rated Voltage High voltage side 220kV / Low voltage side 0.4kV
Rated Frequency 50Hz or 60Hz
Vector Group Common options include Dyn11, Yyn0, Yd11
Insulation Class Typically Class A or Class F
Implementation Standard
Implementation Standard
GB 1094 Power transformers
GB/T 6451 Technical specifications and requirements for oil-immersed power transformers
GB/T 10228 Technical specifications and requirements for power transformers
IEC 60354 Transformer load guide
ISO 14001 Environmental management system standards
Technical Advantages
R&D Cloud Platform
R&D Cloud Platform
An integrated digital platform combining electromagnetic optimization design, parametric modeling, performance analysis, structural optimization, and automatic drawing generation. It enables transformer design resource sharing and efficient data management, including search, modification, and version control.
Simulation Analysis
Simulation Analysis
Comprehensive multi-physics simulation covering fluid flow, thermal field, electric field, leakage magnetic field, transient processes, and short-circuit forces. Each transformer series is optimized through thermal and flow analysis to accurately control winding temperature rise and hotspot distribution, ensuring reliable and stable performance.
Smart Operation & Maintenance Platform
Smart Operation & Maintenance Platform
By collecting key data such as temperature, current, voltage, vibration, and grid harmonics, the system enables real-time power quality analysis and fault alarms. It also supports mobile access for remote monitoring and intelligent O&M management.
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