110-220kV-Oil-immersed-power-transformer

110~220kV Oil-immersed power transformer

 

SH Power offers full life-cycle support for its transformers,covering solution design, model optimization, and on-site commissioning—all handled by our experienced technical team. We provide tailor-made solutions for various applications to ensure efficient operation and maximize energy savings.

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Description

110kV and 220kV power transformers are widely used in power generation, transmission and distribution, new energy, rail transit, and commercial and industrial projects.Our company’s product, the SFZ22-240000/220, has successfully passed all routine type tests, including the short-circuit endurance capability assessment conducted by the National Electrical Product Quality Inspection and Testing Center.
We offer a versatile range of models and capacity configurations, including the S(F)Z20/22 double ­winding on-load tap changer, the SS(F)Z20/22 three-winding on-load tap changer, and the S(F)20/22 double-winding no-excitation tap changer. These various specifications a re designed to meet our customers’ diverse customized requirements.
 
Product features
  • Low losses: Utilizing our company’s professional design scheme, the no-load loss is reduced by 15% compared to the national standard, and the load loss is reduced by 5%.
  • Low noise: The noise level is reduced by 3~5dB compared to the national standard.
  • Low partial discharge: The factory partial discharge test value is less than 100 Pc.
  • Strong short circuit resistance: Passed the sudden short circuit test by the National Electrical Product Quality Inspection and Testing Center.
  • No leakage: All sealing parts are made of acrylic one-piece molded components, using fluorescence, positive pressure and negative pressure for leak testing.
  • Strong Overload Capacity, Energy Efficient and Environmentally Friendly.
  • Reliable Operation, Easy Installation, Maintenance, and Transportation.

Key Features

  • Comprehensive Product Range

Including oil-immersed, dry-type and packaged substation transformers to cover all voltage levels and application needs.

  • High Efficiency & Low Loss

Built with high-grade grain-oriented silicon steel and premium insulation systems for low no-load and load losses and outstanding energy savings.

  • Reliable Sealing & Insulation

Oil-immersed and packaged units offer superior moisture-proof, leak-proof and dielectric performance, guaranteeing long-term stability.

  • Precision Manufacturing

The entire process strictly follows national standards and ISO 9001 quality management system.

  • Custom Design Capability

Custom designs are available to match specific site conditions and load characteristics.

  • Durability & Safety

Robust construction incorporates overload and high-temperature protection functions.

  • Environment-Friendly

Compliant with RoHS and other environmental regulations—low noise, minimal losses.

Applications and Utility

  • Utility-Scale Power Generation and Transmission

Our 110kV and 220kV power transformers are widely used in power plants and transmission substations for efficient voltage transformation.

  • Renewable Energy Integration

We provide specialized solutions, including inverter and step-up integrated transformers, for renewable energy projects like solar farms and wind power plants.

  • Industrial and Commercial Distribution

Our dry-type and pad-mounted transformers are perfect for industrial facilities, commercial complexes, data centers, and high-rise buildings, providing safe and reliable power distribution.

  • Public and Residential Infrastructure

Our distribution transformers, including pole-mounted and pad-mounted types, are essential for urban and rural power grids, delivering electricity to homes and public facilities.

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