20kV Oil-Immersed Distribution Transformer
Standards
GB / IEC 60076
Testing
Routine report
Origin
China
20kV Distribution Transformers
125 kVA 20 kV Oil-Immersed power Transformer
Core Overview This transformer is suitable for 20KV high-voltage scenarios, with a capacity of 125kVA. It is mainly used in small and medium-sized industrial parks, outdoor distribution points, and power supply for photovoltaic systems. No complex renovations are required. It can be used directly upon arrival. It combines practicality and durability to meet the basic requirements of high-voltage distribution.
- Product type
- 20kV Oil-Immersed Distribution Transformer
- Rated capacity
- 125 kVA
- Voltage class
- 20 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
125kVA 20KV Oil-immersed Transformer
Core Overview This transformer is suitable for 20KV high-voltage scenarios, with a capacity of 125kVA. It is mainly used in small and medium-sized industrial parks, outdoor distribution points, and power supply for photovoltaic systems. No complex renovations are required. It can be used directly upon arrival. It combines practicality and durability to meet the basic requirements of high-voltage distribution.
Product Features Compatible with 20KV high-voltage environment, stable operation, no voltage fluctuations, no frequent adjustments during daily use, convenient and stress-free. Moderate in size, easy to install, can be flexibly deployed whether outdoors or in factories, without occupying too much space. Compatible with Box Type Substation (Box-type Transformer Station ), High And Low Voltage Switchgear (High and Low Voltage Switchgear), and used with Electric Power Converter (Electric Power Converter). No additional interface modifications are required. It can directly connect to existing distribution lines.
Tips for Use When installing, find a flat surface, ensure proper line connection, avoid poor contact, and no professional construction team is needed. Ordinary people can also operate. Daily maintenance is not complex. Occasionally check the oil level. As long as the oil color is clear and there is no odor, it will not affect usage. Avoid severe collisions to prevent damage to the sealing structure, which may affect the stability of high-voltage operation.
Common Problems Q: Can this transformer meet the entire power supply requirements of small and medium-sized parks? A: Absolutely, the 125kVA capacity is just suitable for the daily power supply of small and medium-sized parks and factories. No additional equipment is needed. The operation is stable and uninterrupted.
Q: Will outdoor installation be affected by wind and sun exposure? A: No, the equipment is protected by sealing, can resist wind, sun exposure, and rain erosion. Long-term outdoor use will not cause faults and does not require frequent maintenance.
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 | 20kV Oil-Immersed Distribution Transformer |
|---|---|
| Rated capacity | 125 kVA |
| Voltage class | 20 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
- 20 kV industrial distribution
- Mining and heavy industry
- Renewable-energy collection systems
- Ports and logistics parks
- Utility substations
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 125 kVA 20 kV Oil-Immersed power Transformer
What is 125 kVA 20 kV Oil-Immersed power Transformer best used for?
What is the typical lead time for 125 kVA 20 kV Oil-Immersed 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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