SFL-50000/110 on-load power transformer front side detail view
SFL-50000/110 on-load power transformer rear side view
SFL-50000/110 on-load power transformer nameplate 50 MVA 110 kV
SFL-50000/110 on-load power transformer rear corner view

50MVA Power Transformer | SZ11-50000/110 | 115kV / 38.5kV | Built in 2016

This is an on-load tap-changing power transformer, model SZ11-50000/110, manufactured by Shandong Luneng Taishan Power Equipment Co., Ltd. in December 2016. The unit is rated at 50MVA, with a voltage ratio of 115kV / 38.5kV. It features a YNd11 vector group, ONAN cooling method, and OLTC configuration.
It is suitable for substations, utility distribution systems, and industrial power supply projects where reliable voltage transformation, stable operation, and on-load voltage regulation are required.

Additional information

Manufacturer

Shandong Luneng Taishan Power Equipment Co., Ltd.

Model

SZ11-50000/110

Rated Capacity

50,000 / 50,000 kVA (50 MVA)

Voltage Ratio(115 ± 8 × 1.25%) / 38.5kV

(115 ± 8 × 1.25%) / 37kV

Frequency / Phase

50Hz / 3-Phase

Manufacturing Date

2016

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Scope of Supply

The supply scope can be confirmed based on the actual unit condition and project requirements, generally including:

  • Transformer main body
  • HV and LV bushings
  • OLTC system
  • Oil tank and main external structural parts
  • Cooling system and related accessories
  • Existing neutral-point related connection parts, if available on the unit
  • Existing instruments, valves, and standard accessories
  • Nameplate and available technical data
  • Available technical documents, subject to actual availability

Note: Final scope is subject to contract and confirmed technical documents.

Inspection, Testing & Technical Review

To help buyers better evaluate the actual condition of the unit and reduce procurement risk, we can provide inspection, testing, and technical review support based on the equipment condition, project requirements, and buyer’s technical standards, including:

  • General inspection of the transformer body, bushings, oil tank, cooling system, nameplate, and main accessories
  • Verification of rated capacity, voltage level, vector group, and key technical data
  • Routine tests such as insulation resistance, turns ratio, DC resistance, and oil analysis can be arranged upon request
  • Condition inspection and functional checking of the OLTC and related components
  • Technical clarification of service history, storage condition, and dismantling background based on available information
  • Pre-shipment inspection, video witnessing, or third-party technical review can be supported

In addition, if a higher delivery standard is required, refurbishment work can be arranged upon request, which may include:

  • Cleaning and general inspection
  • Transformer oil treatment, topping-up, or replacement
  • Replacement of seals and aged components
  • OLTC checking, servicing, and adjustment
  • Surface treatment and repainting
  • Routine testing before shipment

Note: The final scope of inspection, testing, and refurbishment can be confirmed according to the actual unit condition, project requirements, and buyer’s budget.

Project Support Services

We can provide project support services according to the buyer’s requirements, including:

  • Technical matching and selection support
  • Documentation for project evaluation
  • Export packing, lifting preparation, loading, and logistics coordination
  • Installation preparation and pre-commissioning technical communication support
  • Optional refurbishment services according to project requirements
  • Spare parts supply and after-sales technical support

Frequently Asked Questions

What is the main application of this SZ11-50000/110 50MVA power transformer?
This SZ11-50000/110 50MVA power transformer is suitable for 115kV substations, utility distribution systems, and industrial power supply projects requiring a 115kV / 38.5kV voltage configuration. It is suitable for applications where reliable voltage transformation, stable operation, and on-load voltage regulation are required.
The main features of this SZ11-50000/110 50MVA 115kV transformer include 50,000 kVA rated capacity, (115 ± 8 × 1.25%) / 38.5kV voltage ratio, 50Hz frequency, 3-phase design, YNd11 vector group, ONAN cooling method, and OLTC configuration, making it suitable for medium and large power distribution applications.
Yes. For this used SZ11-50000/110 transformer, inspection, testing, and refurbishment can be arranged according to the buyer’s requirements. The available scope may include general inspection, electrical testing, oil treatment, seal replacement, OLTC checking, repainting, and pre-shipment support.

Request a Quote & Technical Matching

Please provide your contact details and project requirements below. Our team will review your request and recommend suitable equipment solutions based on your application, technical needs, and delivery destination.
Site inspection, pre-shipment checking, and project discussion can be arranged for serious buyers.

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