Oil Immersed Transformer

The oil-immersed Transformer is to use electromagnetic induction to convert AC voltage. Because of its safety, reliability, and efficiency advantages, it is widely used in industrial, commercial, and urban distribution networks.

The structure of an oil-immersed transformer is composed of an iron core, winding, oil tank, radiator, valve, and other parts. During its working process, when the input AC voltage changes, the magnetic field in the iron core changes, causing the current in the winding to change, thereby generating an induced electromotive force. This induced electromotive force is opposite to the polarity of the input voltage, which can offset the input voltage change and keep the output voltage stable. 

Function Principle of Oil Immersed Transformer

The central part of an oil-immersed transformer is an iron core with a winding surrounded by insulating Oil. When current passes through the winding, a magnetic field is generated, which in turn generates a vortex electric field in the iron core. This electric field causes the iron molecules in the iron core to arrange in an orderly manner in a specific direction, forming a magnetic flux.

Advantages and Characteristics of Oil Immersed Transformer

• Stability: The use of insulating Oil in Oil immersed transformers can effectively prevent the erosion of moisture, oxygen, and other substances inside the Transformer, thereby improving the stability and service life of the equipment.
• Fire resistance: The oil-in-oil immersed transformers can effectively suppress the generation of arcs. Once there is an internal fault in the equipment, the Oil can quickly extinguish the arc and reduce the possibility of fire.
• Easy maintenance: The internal parts of the Oil-involved Transformer are soaked in Oil, making maintenance relatively straightforward as the internal condition of the Transformer can be directly observed.
• Good heat dissipation: Insulation Oil can conduct the heat generated during transformer operation and dissipate the heat into the air through natural convection, allowing the Transformer to operate at higher loads.

Application of Oil-immersed Transformer

1）Power system: Oil-immersed transformers are widely used in power system transformation and distribution stations and are mainly responsible for power transmission and distribution, voltage reduction, and voltage boosting. Due to its stable performance, reliable operation, small size, and high power, oil-immersed transformers have become an indispensable piece of equipment in the field of power transmission and distribution.

Oil immersed transformers used in power distribution systems

2）Industrial field: Oil-immersed transformers are widely used in the industrial field, mainly used to provide stable and reliable power for various large machinery and equipment, such as motors, air conditioners, lighting, etc. At the same time, it can also be used in power frequency conversion control systems to adjust the frequency to adapt to different working environments. In addition, it can also be used in fields such as power equipment and lighting equipment, such as welding machines, motors, and lighting power supplies, to play the role of power conversion and electronic equipment protection.

Oil immersed transformers are used in the industrial field

3）Logistics, transportation, and other fields: Because oil-immersed transformers are smaller in size and lighter in weight, they are also widely used in logistics, transportation, and other fields. For example, it can provide stable power support for various mobile generator sets, giant stage lighting and audio equipment, etc.

The Main Advantages of Oil-immersed Transformer

• High safety: Since the Oil of the oil-immersed Transformer is isolated from the outside world, even if the Transformer is overloaded, short-circuited, or overheated and other abnormal conditions occur, it will not cause danger such as fire or explosion.
• High reliability: The oil-immersed Transformer has a self-protection mechanism. When an abnormal situation occurs, the oil temperature will rise, but the Transformer will not be damaged immediately. At the same time, the oil-immersed Transformer also has a long service life, which can generally be used for more than 20 years.
• High efficiency: Since the loss of the oil-immersed Transformer is low, it is highly efficient and can save energy.
• Easy maintenance: Due to the simple structure of the oil-immersed Transformer, it is easy to maintain. It only needs to regularly check the quality of the Oil and replace the filter element.

Company Profile

Luoyang Datang Energy Technology Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing and supply of power equipment such as transformers, new energy components, distribution cabinets and inverters. With technological innovation as the core, we focus on creating high-reliability and high-performance power solutions to serve global customers. With a strict quality control system and international standard certification, we continue to output excellent products and enable customers to build safe and stable power systems.

If you are looking for a high-quality Oil immersed Transformer supplier, we invite you to contact us or click on related products to inquire.

Payment Methods for Oil-immersed Transformer

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment of Oil-immersed Transformer

Once payment is received, by sea, by air, or by express as soon as possible.

FAQ

What is an Oil immersed transformer?

Re: An immersed Transformer is an essential piece of equipment in electrical engineering, whose central part is an iron core surrounded by insulating Oil in the winding. When the current passes through the winding, a magnetic field is generated, which in turn causes a vortex electric field in the iron core, achieving electrical energy conversion.

How do you maintain and upkeep Oil-immersed transformers?

Re: In order to ensure the normal operation and service life of oil-immersed transformers, regular maintenance and upkeep are required. This includes checking the condition of the Oil, regularly replacing insulation oil, checking for oil leaks, and conducting standard electrical tests.

How do we deal with faults in Oil immersed transformers?

Re: When an oil-immersed transformer malfunctions, it should be handled according to the specific situation. Common faults include winding faults, iron core faults, tap changer faults, etc. For these faults, the root cause should be identified first, and then corresponding measures should be taken to repair or replace the components. When dealing with faults, safety operating procedures should be followed to ensure the safety of personnel and equipment.

What is the function of insulation oil in oil-immersed transformers?

Re: Insulation oil plays a vital role in oil-immersed transformers. Firstly, as an insulating medium, it maintains sufficient insulation strength between the live and grounded parts inside the Transformer, ensuring the safe operation of the equipment. Secondly, insulating Oil can conduct the heat generated during transformer operation and dissipate the heat into the air through natural convection, which helps reduce the internal temperature of the Transformer and prevent equipment damage caused by overheating. In addition, insulating Oil can also suppress the generation of arcs and minimize the risk of transformer fires.

What precautions should be taken during the operation of oil-immersed transformers?

Re: During operation, oil-immersed transformers need to pay attention to the following points. Firstly, it is necessary to ensure that the load of the Transformer is within the allowable range to avoid overloading operations that may cause equipment overheating or damage. Secondly, it is necessary to regularly check the condition of the Oil to ensure that its cleanliness and insulation strength meet the requirements. In addition, regular electrical testing and mechanical inspections should be conducted to address potential faults or issues promptly. At the same time, it is necessary to keep the environment of the Transformer clean and avoid dust, debris, etc., from entering the interior of the equipment.

What are the requirements for the installation of oil-immersed transformers?

Re: The installation of oil-immersed transformers should follow specific requirements and specifications. Firstly, a suitable location should be selected to ensure a good environment, good ventilation, and easy maintenance and repair around the Transformer. Secondly, the basic design and construction should be based on the specifications and capacity of the Transformer to ensure its stability and safety. In addition, transportation channels and lifting facilities for transformers should be considered for future equipment movement or maintenance. At the same time, relevant electrical safety regulations should be followed to ensure the personal safety of installation personnel and the safe operation of equipment.

What safety precautions should be taken when maintaining and repairing oil-immersed transformers?

Re: When maintaining and repairing oil-immersed transformers, the following safety precautions should be taken into consideration. Firstly, it is necessary to ensure that the power supply to the Transformer is disconnected and take corresponding safety measures, such as setting warning signs, locking switches, etc., to avoid electric shock or short circuit accidents caused by misoperation. Secondly, during the maintenance process, relevant safety regulations should be followed, appropriate tools and protective equipment should be used, and attention should be paid to avoiding damage to equipment components or other accidental losses during work. In addition, components that have already malfunctioned or been damaged should be disposed of or recycled according to relevant regulations, and harmful substances should not be discarded or discharged arbitrarily.