125kVA Oil-Immersed Rectifier Transformer
Capacity: 125kVA
Delivery Year: 2022
Country: Kazakhstan
Key Advantages:
High Efficiency & Stability: Designed as an Oil filled Rectifier Transformer for industrial use, it supports continuous heavy-load operation and adapts to Kazakhstan’s extreme cold climate.
Customized Design: Modular structure ensures rapid delivery and installation of the Rectifier Transformer, minimizing downtime.
Extended Lifespan: Featuring sealed oil tank technology, this Oil-Immersed Transformer effectively resists moisture and dust, prolonging service life.
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 125kva oil-immersed rectifier transformer in China. If you're going to buy customized 125kva oil-immersed rectifier transformer made in China, welcome to get quotation from our factory. Quality products and reasonable price are available.
Product Introduction of 125kVA Oil-Immersed Rectifier Transformer
The 125kVA Oil-Immersed Rectifier Transformer is a high-efficiency power device engineered for industrial rectification systems, widely used in metallurgy, chemical processing, and rail transportation. As an Oil filled Rectifier Transformer, it leverages mineral oil insulation and cooling to significantly reduce operating temperatures while enhancing energy conversion efficiency.
Designed with a fully sealed structure, this Oil-Immersed Transformer guarantees stable performance in harsh environments, particularly in extreme cold climates like Kazakhstan. It also supports customizable voltage configurations to align with diverse rectification systems, ensuring uninterrupted industrial production.
Equipped with optimized magnetic circuits and low-loss silicon steel cores, the Rectifier Transformer maintains low noise and high energy efficiency even under full-load conditions, solidifying its role as a reliable power solution for industrial applications.
Products parameter
| Model Number: | ZS series |
| Certification: | ISO9001 |
| Place of Origin: | China |
Custom attributes
| Product Name: | S11 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 H/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 | |||||
Product Features
Advanced Cooling System: The Oil filled Rectifier Transformer utilizes a mineral oil circulation mechanism, improving heat dissipation efficiency by 40% compared to dry-type transformers, eliminating overheating risks during prolonged operation.
Robust Durability: With an IP55-rated oil tank and housing, this Oil-Immersed Transformer withstands extreme temperatures from -40°C to +50°C, ideal for demanding environments like mining and metallurgy.
Energy-Saving Design: Featuring high-permeability silicon steel and low-resistance windings, the Rectifier Transformer reduces no-load losses by 15%, cutting annual energy costs by over 10%.
Smart Monitoring: Integrated oil temperature, level, and pressure sensors enable real-time remote monitoring of the Oil-Immersed Transformer, providing early fault detection.
Versatile Compatibility: Multiple tap interfaces allow seamless integration with rectifiers and frequency converters, meeting diverse application needs for the Rectifier Transformer.
Technical Advantages of Rectifier Transformer
Electromagnetic Optimization: The Rectifier Transformer employs a stepped winding layout to minimize leakage flux and eddy current losses, achieving over 98.5% energy conversion efficiency-exceeding industry benchmarks.
Eco-Friendly Cooling: Using high-flame-point (≥300°C) insulating oil, the Oil filled Rectifier Transformer meets IEC 60296 safety standards, ensuring fire resistance and environmental compliance.
Shock-Resistant Structure: The corrugated steel oil tank of this Oil-Immersed Transformer features elastic expansion technology to accommodate thermal stress, preventing seal failures.
Harmonic Suppression: Multi-winding electromagnetic shielding effectively filters high-order harmonics from rectification systems, reducing grid interference and enhancing compatibility.
Low Maintenance: A sealed oil tank combined with maintenance-free breathers extends the Rectifier Transformer's oil replacement cycle to 10 years, minimizing operational costs.
Product Testing
Every 125kVA Oil-Immersed Rectifier Transformer undergoes rigorous testing to ensure reliability:
Overload Test: Operating at 110% rated load for 72 hours, the Oil filled Rectifier Transformer maintains a temperature rise below 75K, complying with IEC 60076 standards.
Insulation Test: Subjected to 35kV power-frequency withstand voltage for 1 minute, this Oil-Immersed Transformer shows no breakdown or flashover, confirming insulation integrity.
Climate Simulation: Tested at -40°C to replicate Chile winters, the Rectifier Transformer demonstrates optimal oil fluidity and winding resistance, ensuring cold-weather reliability.
All test data is third-party certified, guaranteeing global quality assurance.
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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