Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of 110kv oil-immersed three-phase three-winding on-load voltage regulating power transformer in China. Please feel free to buy high quality 110kv oil-immersed three-phase three-winding on-load voltage regulating power transformer from our factory. Customized orders are welcome.
Product Introduction
The 110kV Oil-immersed Three-phase Three-winding On-load Voltage Regulating Power Transformer is a high-performance power transformer designed for modern power transmission and distribution systems. It is widely used in substations, power plants, industrial facilities, renewable energy projects, and utility grid networks where reliable voltage conversion and stable power supply are required.
With a three-phase, three-winding structure and advanced on-load voltage regulation technology, this transformer provides flexible voltage adjustment under energized conditions, improving grid voltage stability and ensuring continuous operation of critical electrical systems.
Yawei Transformer manufactures 110kV Oil-immersed Three-phase Three-winding On-load Voltage Regulating Power Transformers with optimized electromagnetic design, high-quality materials, and strict manufacturing processes to deliver excellent efficiency, reliability, and long service life.
Product Features
The three-winding configuration allows the transformer to connect multiple voltage levels within a power network. It is suitable for applications requiring power exchange between high-voltage, medium-voltage, and low-voltage systems.
Typical applications include:
110kV substation systems
Power plant auxiliary power supply
Industrial power distribution networks
Renewable energy collection systems
Regional power grids
The three-winding design helps reduce the number of transformers required in complex electrical systems while improving overall system flexibility.
Equipped with an on-load tap changer (OLTC), the transformer can adjust the output voltage without interrupting power transmission.
The on-load voltage regulation system helps:
Maintain stable output voltage
Improve power quality
Reduce voltage fluctuations caused by load changes
Enhance grid operation reliability
This feature is especially important for substations and power networks with continuously changing loads.
The transformer uses high-quality insulating oil for electrical insulation and heat dissipation.
The oil circulation system effectively transfers heat generated by:
Core losses
Winding losses
Load operation
Common cooling methods include:
| Cooling Mode | Description |
|---|---|
| ONAN | Oil Natural Air Natural cooling |
| ONAF | Oil Natural Air Forced cooling |
| OFAF | Oil Forced Air Forced cooling |
The optimized cooling design ensures safe operation under heavy load conditions.
Technical Advantages
High Efficiency and Low Losses
Yawei's 110kV Oil-immersed Three-phase Three-winding On-load Voltage Regulating Power Transformer adopts advanced core and winding technology to reduce:
No-load losses
Load losses
Operating costs
Low-loss design helps improve energy efficiency throughout the transformer lifecycle.
Reliable Insulation System
The transformer uses high-quality insulation materials to provide excellent dielectric strength and long-term reliability.
Key insulation components include:
High-quality transformer oil
Oil-immersed paper insulation
Pressboard insulation materials
Optimized insulation structure
The insulation system is designed to withstand high voltage stress and harsh operating environments.
Strong Short-Circuit Withstand Capability
Power grid transformers may experience high fault currents during abnormal conditions. The transformer structure is designed with strong mechanical strength to withstand short-circuit forces.
Features include:
Robust winding support structure
Precise electromagnetic design
Reliable clamping system
Strict factory testing
Main Components
| Component | Function |
|---|---|
| Magnetic core | Provides efficient magnetic flux path |
| High-voltage winding | Connected to 110kV system |
| Medium-voltage winding | Provides intermediate voltage output |
| Low-voltage winding | Supplies lower voltage loads |
| On-load tap changer | Adjusts voltage during operation |
| Transformer oil | Provides insulation and cooling |
| Radiator system | Dissipates heat |
| Conservator tank | Compensates oil expansion |
| Buchholz relay | Detects internal faults |
| Pressure relief device | Protects against abnormal pressure |
| Bushings | Connect external electrical circuits |
Typical Applications
The 110kV Oil-immersed Three-phase Three-winding On-load Voltage Regulating Power Transformer is widely applied in:
Power Substations
Used for voltage conversion and power distribution between different voltage levels.
Power Plants
Provides reliable energy transfer between generation systems and auxiliary distribution networks.
Industrial Facilities
Supports large industrial loads requiring stable medium-voltage and low-voltage power supplies.
Renewable Energy Projects
Suitable for:
Solar power plants
Wind farms
Energy storage systems
The transformer helps integrate renewable energy into utility grids efficiently.
Why Choose Yawei 110kV Power Transformers?
Professional Manufacturing Experience
Yawei Transformer has extensive experience in designing and manufacturing high-voltage transformers for global power applications.
Customized Engineering Solutions
Transformers can be customized according to:
Rated capacity
Voltage ratio
Tap range
Cooling method
Installation environment
Protection requirements
Reliable Long-Term Performance
With advanced manufacturing technology and strict quality management, Yawei transformers provide:
High operational reliability
Low maintenance requirements
Long service life
Stable performance under demanding conditions
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Specifications
|
(kVA) Rated capacity |
Rated voltage and tapping range |
Vector group |
(%) No load current |
(%) Impedance voltage |
(kW) No load losses |
(kW) On load losses |
||||
|
HV |
(%)Tapping range | MV |
LV |
|||||||
|
6300 |
110 |
±4×2.5 ±6×2.5 ±8×2.5 |
36 37 38.5 |
6.3 6.6 10.5 21 |
YNyn0d11 |
0.61 |
HV~MV:10.5 HV~LV:17.5~19 MV~LV:6.5 |
5.3 |
40 |
|
|
8000 |
0.61 |
6.3 |
48 |
|||||||
|
10000 |
0.57 |
7.5 |
56 |
|||||||
|
12500 |
0.57 |
8.9 |
67 |
|||||||
|
16000 |
0.54 |
10.6 |
81 |
|||||||
|
20000 |
0.54 |
12.5 |
95 |
|||||||
|
25000 |
0.5 |
14.9 |
113 |
|||||||
|
31500 |
0.5 |
17.7 |
134 |
|||||||
|
40000 |
0.46 |
21.2 |
161 |
|||||||
|
50000 |
0.46 |
25.0 |
192 |
|||||||
|
63000 |
0.42 |
29.8 |
230 |
|||||||
