SFZ11-63000/110 on-load power transformer front view
SFZ11-63000/110 on-load power transformer nameplate 63 MVA 110 kV
SFZ11-63000/110 on-load power transformer front side view
SFZ11-63000/110 on-load power transformer rear side view

63MVA Power Transformer | SFZ11-63000/110 | 110kV / 37kV | Built in 2015

This is an on-load tap-changing power transformer, model SFZ11-63000/110, manufactured in September 2015. The unit is rated at 63MVA, with a voltage ratio of 110kV / 37kV. It features a Ynd11 vector group and ONAN / ONAF cooling method. It is suitable for substations, power transmission and distribution systems, and large-scale industrial power supply projects. The unit is equipped with an OLTC (on-load tap changer), allowing voltage adjustment under load conditions.

Additional information

Manufacturer

Zhongda Electric Group Co., Ltd

Model

SZ11-63000/110

Rated Capacity

63,000 kVA (63 MVA)

Voltage Ratio

(110 ± 8 × 1.25%) / 37 kV

Frequency / Phase

50Hz / 3-Phase

Manufacturing Date

September 2015

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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
  • Cooling system (radiators, fans, oil pumps if applicable)
  • Conservator and related accessories
  • Standard instruments (oil level indicator, temperature indicator, pressure relief device, etc.)
  • Necessary piping, valves, and standard accessories
  • Available technical documents and nameplate data

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 inspection 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 or replacement
  • Replacement of seals and aged components
  • OLTC 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

  • Technical matching and selection support
  • Documentation for project evaluation
  • Export packing and logistics
  • Installation and commissioning support
  • Optional refurbishment services
  • Spare parts and after-sales support

Frequently Asked Questions

What is the main application of this SFZ11-63000/110 63MVA power transformer?
This SFZ11-63000/110 63MVA power transformer is suitable for 110kV substations, utility power distribution systems, and large industrial power projects that require a 110kV / 37kV voltage configuration. It is suitable for applications where stable voltage regulation and reliable transformer performance are required.
Yes. This unit is an on-load tap-changing power transformer (OLTC). Its main features include 63MVA rated capacity, 110kV / 37kV voltage ratio, 50Hz frequency, 3-phase design, Ynd11 vector group, and ONAN / ONAF cooling method, making it suitable for medium and large power transmission and distribution applications.
Yes. For this used SFZ11-63000/110 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. The final scope can be confirmed based on the actual condition of the unit, project requirements, and budget.

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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