Oil-Immersed Distribution Transformer
Standards
GB / IEC 60076
Testing
Routine report
Origin
China
Oil-Immersed Transformers
35 kV Class Power Transformer
The 35kV series power transformers feature advanced design, with significant improvements and enhancements in materials, structure, and manufacturing processes. The high-voltage and low-voltage clamps are tensioned by steel straps, upper beams, or side beams to form a robust frame structure, which enhances the clamping force on the iron core and the ability to withstand transportation impacts.
- Product type
- Oil-Immersed Distribution Transformer
- Rated capacity
- 50-10,000 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
The 35kV series power transformers feature advanced design, with significant improvements and enhancements in materials, structure, and manufacturing processes. The high-voltage and low-voltage clamps are tensioned by steel straps, upper beams, or side beams to form a robust frame structure, which enhances the clamping force on the iron core and the ability to withstand transportation impacts.
This series of transformers boasts strong short-circuit resistance, an attractive appearance, reliable operation, low loss and low noise, with performance reaching the advanced level of similar foreign products.
Both its high-voltage and low-voltage coils are equipped with longitudinal oil ducts, which facilitate heat dissipation and can significantly reduce the copper-oil temperature difference as well as the temperature rise at the hottest spot inside the coils.
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 | Oil-Immersed Distribution Transformer |
|---|---|
| Rated capacity | 50-10,000 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
- Urban and rural distribution networks
- Industrial plants and industrial parks
- Commercial and public buildings
- PV, wind and battery-energy-storage step-up
- Mining, oil and 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 35 kV Class Power Transformer
What is 35 kV Class Power Transformer best used for?
What is the typical lead time for 35 kV Class Power Transformer?
Which standards and tests are supplied?
Can the transformer be customised for 60 Hz or a hot climate?
How do I choose between copper and aluminium windings?
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