Outdoor Oil Immersed Power Transformer 110kV 10000kVA for Power Substation
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Product application
Low-noise environmental-friendly design, suitable for various scenarios
Low-noise operation is achieved through structural optimization and process improvement. The core is made using a high-precision stacking process, combined with an elastic clamping structure, which reduces core vibration and magnetic expansion noise. The winding is tightly wound and the size is stabilized through constant pressure drying treatment, thereby reducing electromagnetic vibration noise. A low-noise cooling fan (air-cooled type) is selected. The fan starts and stops automatically based on oil temperature and load, further reducing operating noise.
Compact structure and lightweight design, saving infrastructure costs
Based on the electromagnetic optimization design concept, the structure is streamlined to the greatest extent while ensuring performance. The layout of the engine body and the dimensions of components are optimized, resulting in a 15%-20% reduction in the equipment's volume compared to traditional products, and a corresponding weight reduction, achieving a lightweight design. An integrated structure design is adopted to reduce redundant components and improve space utilization. This not only lowers transportation difficulty and costs but also saves installation area, especially suitable for installation scenarios with limited space such as urban cores, tunnels, and subways.
High-quality insulation configuration, with outstanding electrical performance
Completely use high-quality insulating materials. The insulating components are made of high-strength insulating materials such as high-quality laminated wood and epoxy glass tape, which will not crack or deform even under short-circuit electric force, and can maintain stability.
Highly intelligent and adaptable, meeting the upgrade requirements of the power grid.
Deeply integrated into the intelligent power grid construction system, it has a complete intelligent monitoring and control interface, enabling real-time collection and remote transmission of key operating parameters such as oil temperature, oil level, voltage, and current. Equipped with intelligent protection devices, including pressure release valves, temperature controllers, and oil level alarms, when equipment experiences overheating, overpressure, or abnormal oil levels, it can promptly issue alerts and trigger protection actions to prevent the expansion of faults. It supports coordinated operation with new energy power generation systems and energy storage equipment, possesses flexible power regulation and voltage adaptation capabilities, and helps with the grid connection and absorption of distributed energy.
Product Specifications
| rated capacity(KVA) | voltage combination(Kv) | connection group table | no-load loss(T) | loadloss(W)75° | no-loadcurrent(%) | short circuit impedance(%) | ||
| (H.V.) | High-voltage tapping range | (L.V.) | ||||||
| 2000 | 35 | ±3X2.5% | 6.3 10.5 | Yd11 | 2300 | 19240 | 0.8 | 6.5 |
| 2500 | 2720 | 20640 | 0.8 | |||||
| 3150 | 35 38.5 | ±3X2.5% | 6.3 10.5 | 3230 | 24710 | 0.72 | 7.0 | |
| 4000 | 3870 | 29160 | 0.72 | |||||
| 5000 | 4640 | 34200 | 0.68 | |||||
| 6300 | 5630 | 46770 | 0.68 | 7.5 | ||||
| 8000 | 35 38.5 | ±3X2.5% | 6.3 6.6 10.5 11 | Ynd11 | 7870 | 40610 | 0.6 | |
| 10000 | 9280 | 48050 | 0.6 | |||||
| 12500 | 10940 | 56860 | 0.56 | 8.0 | ||||
| 16000 | 13170 | 70320 | 0.54 | |||||
| 20000 | 15570 | 82780 | 0.54 | |||||
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FAQ
Find answers to common questions about the 110kV 10000kVA outdoor oil-immersed power transformer, including capacity selection, OLTC regulation, impedance, cooling, protection, testing and project customization.
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What are the rated voltage and capacity of this transformer?
This outdoor oil-immersed power transformer is designed for **110kV-class power systems** with a rated capacity of **10000kVA (10MVA)**. The exact primary voltage, secondary voltage, frequency, and system configuration should be confirmed according to the project single-line diagram and technical specification.
Is a 10000kVA transformer suitable for my substation project?
Whether 10000kVA is suitable depends on the actual system load and project design. Transformer sizing should consider: * Maximum demand * Connected load * Load factor * Future expansion * Motor and industrial loads * Power factor * Redundancy requirements * Parallel operation requirements If you provide the load schedule and single-line diagram, we can review whether **10MVA** is the appropriate transformer capacity.
What secondary voltage can be supplied with a 110kV transformer?
The secondary voltage can be designed according to the project requirements. Typical substation and industrial applications may require different medium-voltage output levels. Please provide the required **primary and secondary voltage combination** during RFQ so that the winding and insulation system can be correctly designed.
Does this transformer support on-load tap changing?
Yes, this product can be configured with an **on-load tap changer (OLTC)** where required by the project. OLTC allows the transformer voltage ratio to be adjusted while the transformer remains energized, helping maintain a stable secondary voltage when the incoming grid voltage or load conditions change. The final OLTC configuration and tap range should be confirmed according to the project specification.
What tap range can be provided?
The tap range depends on the electrical system design and voltage regulation requirements. Different tap ranges and numbers of tap positions can be configured according to the technical specification. Please provide the required nominal voltage, tap range, and voltage step during technical confirmation.
What vector group and short-circuit impedance can be provided?
The vector group and short-circuit impedance can be customized according to the project design. These parameters are important for: * System grounding * Short-circuit current limitation * Protection coordination * Voltage regulation * Parallel transformer operation * System stability If your project specifies exact values, please include them in the transformer datasheet or tender documents.
What cooling methods are available for a 10MVA oil-immersed transformer?
The cooling method depends on transformer capacity, losses, ambient temperature, and project operating conditions. Depending on the design, suitable oil and air cooling configurations can be selected to maintain the required temperature rise during operation. Please provide the required cooling method or operating conditions during technical review.





