35kV On-Load Tap-Changing Transformer
Standards
GB / IEC 60076
Testing
Routine report
Origin
China
35kV On-Load Tap-Changing Transformers
1000 kVA 35 kV Oil-Immersed Transformer Low Loss
Low-Loss 35KV 1000KVA Oil-immersed Transformer for Stable Power Supply in Industrial Power Distribution
- Product type
- 35kV On-Load Tap-Changing Transformer
- Rated capacity
- 1,000 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
Product overview
Low-Loss 35KV 1000KVA Oil-immersed Transformer for Stable Power Supply in Industrial Power Distribution
Currently, the power transmission and distribution industry commonly faces pain points such as high no-load losses, excessive energy consumption during long-term operation, and excessive temperature rise in aging transformers. Many factories and mines, after purchasing ordinary transformers, face persistently high electricity costs and frequent equipment maintenance as core concerns. To address these issues, our factory has launched a 1000KVA 35KV Low-Loss Oil Immersed Transformer . Paired with compatible High And Low Voltage Switchgear and Box Type Substations, it completes the power distribution system. It can also be used with Electric Power Converters and Combined Photovoltaic Substations to achieve grid-connected photovoltaic power supply. Compared to traditional Dry Type Transformers, it is more suitable for outdoor, high-capacity, long-term operation scenarios. The product utilizes a high-permeability silicon steel core with optimized winding structure, reducing no-load and load losses from the source. After being deployed in power grid upgrade projects in factories, mines, and rural areas, annual power loss can be significantly reduced, operating heat generation is lower, and the stable operating cycle of the equipment is greatly extended, balancing long-term operating costs and power supply safety. This equipment has a rated capacity of 1000KVA and a high-voltage side of 35KV, making it a core piece of medium- and high-voltage Power Distribution Equipment . It is widely used in self-provided power stations in industrial parks, open-pit mine power supply systems, urban and rural power grid upgrades, and photovoltaic Energy Storage supporting sites. It can be used independently as a main transformer or embedded in a complete distribution cabinet, flexibly combined with various power conversion and photovoltaic integration equipment, adapting to the needs of large-capacity power voltage regulation and transmission in multiple scenarios.
Design features
What the design is built around
Ultra-low loss operation design
The core iron core is processed using high-quality low-loss silicon steel sheets. Compared with conventional oil-impaired transformers, the no-load loss is significantly reduced, effectively reducing power resource waste during long-term continuous operation, and adapting to 24-hour uninterrupted power supply conditions.
Practical Tips
Installation and Matching Recommendations
When installing the equipment, simultaneously match it with a corresponding High and Low Voltage Switchgear. If used in a photovoltaic project, it can be directly connected to Combined Photovoltaic Substations to simplify the wiring process and reduce on-site modification work.
Typical specification
Specifications to confirm on the datasheet
| Product type | 35kV On-Load Tap-Changing Transformer |
|---|---|
| Rated capacity | 1,000 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 1000 kVA 35 kV Oil-Immersed Transformer Low Loss
Can this 1000KVA 35KV Oil Immersed Transformer be used in a photovoltaic power station?
How long is the daily maintenance cycle, and is the operation difficult?
Compared with a Dry Type Transformer , how should one choose for outdoor projects?
What services are included in the after-sales warranty?
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View modelProject inquiry
Tell us what the transformer has to do.
Load, voltage class, site conditions, standards and required documents are enough to start. We reply through the inquiry thread.