250kVA Oil Immersed Rectifier Transformer
Capacity: 250kVA
Delivery Year: 2020
Country: India
Key Advantages:
Equipped with efficient oil cooling technology (oil cooled rectifiers), ensuring stable operation in high-temperature environments.
The compact design of the Oil Immersed Rectifier Transformer makes it ideal for industrial sites with limited space.
High-quality insulation materials and advanced manufacturing processes give the Oil Immersed Transformer excellent durability and low maintenance costs.
Have questions? GNEE sales representatives are available for live chat now
Send E-mail: sales@gneeelectric.com
Tel: +8615824687445
Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 250kva oil immersed rectifier transformer in China. If you're going to buy customized 250kva oil immersed rectifier transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
Advantages of Rectifier Transformer Over Ordinary Transformers

The Rectifier Transformer is a specially designed transformer for rectification applications and offers significant advantages over ordinary transformers:
Higher Efficiency: The Oil Immersed Rectifier Transformer uses oil cooling (oil cooled rectifiers) technology to effectively reduce temperature rise, improve efficiency, and minimize energy loss.
Stronger Load Capacity: Compared to ordinary transformers, the Rectifier Transformer can handle higher harmonic currents, adapting well to complex industrial load requirements.
Longer Service Life: The high-quality oil-immersed structure of the Oil Immersed Transformer enhances insulation performance, extending the service life of the equipment.
Lower Noise Levels: Special core design and oil cooling systems reduce operating noise, making it suitable for environments with strict noise requirements.
These features make the Oil Immersed Rectifier Transformer the preferred choice for industrial rectification applications.
Products parameter
| Product Name: | Zs series | Installation: | Indoor/Outdoor |
| Rated Capacity: | 30~31500KVA | Voltage: | 6kv-35kv |
| Number of Phases: | Single or Three Phases | Frequency: | 50Hz/60Hz |
| Cooling: | ONAN/ONAF | Coil: | Copper/Aluminum Coil |
| Insulation level: | Class F | Core: | Cold Rolled Grain Oriented Silicon Steel Sheet |
| Rated capacity (kVA) | High voltage(KV) | Voltage Combination | Connective group label | No-load loss(KW) | Load loss (KW) |
No-load current(%) | Short circuit impedance (%) | Weight (KG) | ||
| High pressure tap range | Low voltage(KV) | Weight of oil | Total weight | |||||||
| 30 | 20/10 | ±5*2.5% ±2*2.5% |
0.4 | Dyn11 | 0.09 | 0.66 | 2.1 | 5.5 | 180 | 420 |
| 50 | 0.13 | 0.96 | 2.0 | 150 | 495 | |||||
| 63 | 0.15 | 1.145 | 1.9 | 170 | 560 | |||||
| 80 | 0.18 | 1.37 | 1.8 | 190 | 635 | |||||
| 100 | 0.2 | 1.65 | 1.6 | 215 | 710 | |||||
| 125 | 0.24 | 1.98 | 1.5 | 250 | 840 | |||||
| 160 | 0.29 | 2.42 | 1.4 | 285 | 945 | |||||
| 200 | 0.33 | 2.86 | 1.3 | 340 | 1125 | |||||
| 250 | 0.4 | 3.35 | 1.2 | 390 | 1295 | |||||
| 315 | 0.48 | 4.01 | 1.1 | 445 | 1475 | |||||
| 400 | 0.57 | 4.73 | 1.0 | 515 | 1712 | |||||
| 500 | 0.68 | 5.66 | 1.0 | 6.0 | 460 | 1995 | ||||
| 630 | 0.81 | 6.82 | 0.9 | 565 | 2450 | |||||
| 800 | 0.98 | 8.25 | 0.9 | 635 | 2765 | |||||
| 1000 | 1.15 | 11.33 | 0.7 | 840 | 3650 | |||||
| 1250 | 1.35 | 13.2 | 0.7 | 970 | 4220 | |||||
| 1600 | 1.63 | 15.95 | 0.6 | 1105 | 4800 | |||||
| 2000 | 1.95 | 19.14 | 0.6 | 1205 | 5240 | |||||
| 2500 | 2.34 | 22.22 | 0.5 | 1300 | 5650 | |||||
Applications of Rectifier Transformer in the Power Field
The Rectifier Transformer is widely used in the power field, especially in scenarios where alternating current needs to be converted into direct current. Below are its main applications:
Industrial Production: In electrolysis and electroplating industrial processes, the Oil Immersed Rectifier Transformer provides stable DC power, ensuring the accuracy of production processes.
New Energy Sector: As a core component in wind power generation and photovoltaic power generation systems, the Oil Immersed Transformer, combined with oil cooling (oil cooled rectifiers) technology, improves energy conversion efficiency.
Rail Transit: In subway and light rail power supply systems, the Rectifier Transformer provides reliable DC power for trains, ensuring smooth operation of transportation systems.
Medical Equipment: In X-ray machines and MRI devices, the Oil Immersed Rectifier Transformer provides stable power support for high-precision medical instruments.

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Why choose us?
GNEE Group:
Global Transformer Supply Chain Integration Expert (2008 - Present)
Founded in 2008, GNEE Group has undergone fifteen years of deep industry cultivation, successfully transforming from a regional trader to a global supply chain management expert. As a pioneer in the integration of the steel industry chain, the group has established a full-cycle value system that spans raw material procurement, production coordination, logistics optimization, and terminal services, setting an innovative operational benchmark in the global transformer distribution sector. In the era of Industry 4.0, GNEE Group is accelerating towards its goal of becoming a global integrator oftransformer industry value through digital restructuring and green supply chain construction.

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