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Fengguang Transformer
8000 kVA 35 kV Oil-Immersed power Transformer — Fengguang Transformer 35kV On-Load Tap-Changing Transformer

Standards

GB / IEC 60076

Testing

Routine report

Origin

China

35kV On-Load Tap-Changing Transformers

8000 kVA 35 kV Oil-Immersed power Transformer

8,000 kVA 35 kV 35kV On-Load Tap-Changing Transformer

The industry's pain points lie in the fact that large-capacity Power Distribution Equipment is prone to overload, poor heat dissipation, and poor grid integration coordination. Your problem is that it is difficult to find high-end power supply equipment that is suitable for extremely large loads, takes into account safety, durability, and efficient coordination. We have specially developed the 8000KVA/ 35kv Transformer , which can be flexibly selected as Oil Immersed Transformer or Dry Type Transformer . It is combined with High And Low Voltage Switchgear to achieve intelligent coordinated power distribution. In practical applications, it can stably carry a 6400kW active load, effectively solving problems such as unstable power supply, insufficient heat dissipation, and poor grid integration coordination in extremely large scenarios. This product simplifies the operation and maintenance process and reduces long-term operating costs. The core value of this product lies in achieving efficient and stable conversion from 35KV high voltage to 0.4KV low voltage. It focuses on extremely large capacity, high immunity, and strong coordination, and is widely used in core power distribution in extremely large industrial bases, hubs of large-scale centralized photovoltaic power stations, and urban main power distribution scenarios. It can operate in conjunction with Box Type Substation and Electric Power Converter , seamlessly connecting with Combined Photovoltaic Substations to complete large-scale power collection and grid connection, ensuring safe, stable, and efficient power transmission for extremely large-scale power transmission.

Quick answer. 8000 kVA 35 kV Oil-Immersed power Transformer is a 35kV On-Load Tap-Changing Transformer rated 8,000 kVA at 35 kV. Typical applications include 35 kV industrial main substations, Utility distribution with voltage regulation, Steel, cement and chemical plants. It is designed to GB 1094.1 and IEC 60076, with routine tests recorded against the approved datasheet.
Product type
35kV On-Load Tap-Changing Transformer
Rated capacity
8,000 kVA
Voltage class
35 kV
Cooling
ONAN / ONAF
Tap range
Off-circuit or on-load, project-specific
Winding
Copper or aluminium (project-specific)

Final ratings, losses, impedance and dimensions are confirmed on the approved datasheet. Website values are for family selection.

  • Routine test report with the unit
  • English GA drawing and O&M manual
  • Copper or aluminium winding options
  • 50 Hz / 60 Hz and harsh-site options
GB 1094.1· GB/T 6451· IEC 60076· ISO 9001 / 14001 / 45001· CE where applicable

Product overview

The industry's pain points lie in the fact that large-capacity Power Distribution Equipment is prone to overload, poor heat dissipation, and poor grid integration coordination. Your problem is that it is difficult to find high-end power supply equipment that is suitable for extremely large loads, takes into account safety, durability, and efficient coordination. We have specially developed the 8000KVA/ 35kv Transformer , which can be flexibly selected as Oil Immersed Transformer or Dry Type Transformer . It is combined with High And Low Voltage Switchgear to achieve intelligent coordinated power distribution. In practical applications, it can stably carry a 6400kW active load, effectively solving problems such as unstable power supply, insufficient heat dissipation, and poor grid integration coordination in extremely large scenarios. This product simplifies the operation and maintenance process and reduces long-term operating costs. The core value of this product lies in achieving efficient and stable conversion from 35KV high voltage to 0.4KV low voltage. It focuses on extremely large capacity, high immunity, and strong coordination, and is widely used in core power distribution in extremely large industrial bases, hubs of large-scale centralized photovoltaic power stations, and urban main power distribution scenarios. It can operate in conjunction with Box Type Substation and Electric Power Converter , seamlessly connecting with Combined Photovoltaic Substations to complete large-scale power collection and grid connection, ensuring safe, stable, and efficient power transmission for extremely large-scale power transmission.

Product Features (Key Extracts)

1. Extra-large capacity with outstanding anti-interference performance: Specifically designed for extremely large load scenarios, it has ample capacity redundancy. It uses high-strength alloy iron cores and high-voltage, high-temperature resistant coil technology, providing extremely strong resistance to overloading, instantaneous load shock, and grid interference. It can stably carry the high-power electricity demands of extremely large production lines and photovoltaic power station hubs for a long time. It can efficiently interact with Combined Photovoltaic Substations and Electric Power Converters, has excellent grid connection synergy, and can be combined with Box Type Substation to achieve intelligent distribution control throughout the process.

2. Strong adaptability and efficient heat dissipation: The Oil Immersed Transformer adopts high-end anti-corrosion sealing and upgraded forced cooling structure, suitable for outdoor extreme harsh environments, capable of withstanding strong temperature differences, high dust, high humidity, and complex grid interference. The Dry Type Transformer has first-class fireproof, moisture-proof, and pollution-proof performance, equipped with an efficient heat dissipation module, suitable for core distribution scenarios with high fire resistance and high cleanliness requirements indoors. Both can be seamlessly connected with High And Low Voltage Switchgear without additional customization or modification, providing convenient operation and stable heat dissipation.

1. When selecting the type, it is necessary to calculate the maximum load of the scene, expansion requirements, and the power grid environment in advance. For extremely large outdoor industrial and photovoltaic hub scenarios, Oil Immersed Transformers should be given priority. For urban main network core power distribution and precision computer room scenarios, Dry Type Transformers should be preferred. By combining with Combined Photovoltaic Substations and Electric Power Converters, the coordination of grid connection and the stability of power distribution can be further enhanced.

2. In daily operation and maintenance, it is crucial to closely monitor the operating parameters and cooling conditions of the equipment. For oil-immersed transformers, regular inspections of the oil quality, cooling system, and sealing performance are necessary. For dry-type transformers, regular cleaning of the cooling modules and testing of insulation performance are required. Overloading must be strictly avoided to prevent damage to the equipment due to poor cooling or excessive load.

Design features

What the design is built around

Low-loss magnetic core

Cold-rolled grain-oriented silicon steel and a stepped core reduce no-load loss and audible noise.

Sealed tank construction

Welded tank, quality-gasketed cover and pressure-tested seals reduce oil leakage risk in outdoor duty.

Thermal margin for hot climates

Cooling surfaces and oil volume are selected for high ambient temperature and cyclic loading.

System compatibility

MV terminals, cable boxes and LV bushings are matched to the switchgear and protection scheme.

Typical specification

Specifications to confirm on the datasheet

Product type 35kV On-Load Tap-Changing Transformer
Rated capacity 8,000 kVA
Voltage class 35 kV
Cooling ONAN / ONAF
Tap range Off-circuit or on-load, project-specific
Winding Copper or aluminium (project-specific)
Standards GB 1094.1, GB/T 6451, IEC 60076
Testing Routine tests plus type and special tests on request

The table is a family-level starting point. The approved datasheet fixes the guaranteed values, drawing dimensions and test plan for the specific order.

Typical applications

  • 35 kV industrial main substations
  • Utility distribution with voltage regulation
  • Steel, cement and chemical plants
  • Renewable-energy step-up
  • Mining and oil-gas facilities

Confirm before ordering

  • Rated capacity, voltage ratio and tap range
  • Impedance, fault level and parallel operation
  • Ambient temperature, altitude and enclosure
  • Winding material, losses and efficiency class
  • Terminations, protection and monitoring
  • Tests, inspection, packing and shipping limits

Buyer questions

FAQ for 8000 kVA 35 kV Oil-Immersed power Transformer

What is 8000 kVA 35 kV Oil-Immersed power Transformer best used for?
This model is specified at 8,000 kVA and 35 kV. It is used where the site load, fault level and environmental conditions match the approved datasheet. Share the load profile, ambient temperature, altitude and grid code and the design can be checked against the application.
What is the typical lead time for 8000 kVA 35 kV Oil-Immersed power Transformer?
Standard distribution units typically ship in 25-40 days after drawing approval. Large power transformers and integrated stations are scheduled by design review, core and winding production, tanking, testing and packing. The exact date is confirmed in the quotation.
Which standards and tests are supplied?
The transformer family is designed to GB 1094.1, GB/T 6451 and IEC 60076. Routine tests include winding resistance, ratio, impedance, no-load loss, load loss, insulation resistance and power-frequency withstand. Type and special tests are available on request.
Can the transformer be customised for 60 Hz or a hot climate?
Yes. Frequency, ambient temperature, altitude, enclosure, corrosion class and terminal arrangement are project inputs. The design is adjusted before production, and the approved datasheet becomes the inspection basis.
How do I choose between copper and aluminium windings?
Copper gives higher short-circuit strength and a more compact winding; aluminium can reduce first cost for lightly loaded units. The choice depends on fault level, load profile, loss evaluation and the buyer's specification. Both are available.

Related models

Other configurations in this family

All 35kV OLTC Transformer

Project inquiry

Tell us what the transformer has to do.

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