Which Parts are Installed in Power Transformers by Indian Exporters and Manufacturers?


Transformer is not a mere device; it is a house of various components installed by power transformers exporters India. These components work together to transfer electricity from one circuit to another with electromagnetic induction. The device is used for stepping up or stepping down the voltage levels at domestic or business site. There are many parts that complete the design of a transformer. These basics components are made with precision material to provide long life and corrosion protection. Read this story further to know about the parts used in transformers.

  1. Laminated core

Laminated core installed in a power transformer helps support the transformer windings. It also provides a low reluctance path to the magnetic flux flow. Laminated core are designed with soft iron core to lower the eddy current loss and Hysteresis loss.

The composition of transformer core relies on such factors like current, voltage, and frequency. Its diameter is directly proportional to copper loss and is inversely proportion to the Fe (iron) loss.

  1. Windings

As you know, a power transformer has two windings- primary and secondary. Windings have several turns of copper coils bundled together and every bundle is connected in series to create a winding. You can also categorize them in two different ways- one is based on the input and output supply, other this based on voltage range.

The supply windings are primary and secondary ones. And voltage range windings are high voltage winding or low voltage winding.

  1. Insulating materials

Card boards and insulating papers are used by manufacturers while constructing a transformer of to isolate primary and secondary winding from transformer core and from each other. You can also include transformer oil in the insulating materials list.

  1. Transformer oil

There are two significant roles played by transformer oil. It is the insulation and cooling for the core and coil assembly. It is important to immerse the core and windings in the oil completely. Usually, hydrocarbon mineral oils are used by experts as transformer oil.

Oil contamination is a serious issue as it takes off the dielectric properties and make the transformer useless thing.

  1. Conservator

It conserves the transformer oil. Conservator is an airtight metallic cylindrical drum that is equipped above the transformer. This component is connected to the main tank inside the transformer that is full of transformer oil.

So, these are some basic components installed in a transformer. There are a few more parts like cooling tubes, tap changer, explosion vent, etc. that are installed in every transformer device by power transformers exporters India. For more details about the design and model, contact the proficient expert manufacturers today.

Properties of Transformer Oil you should know for Filtration


Transformer oil is one the significant component in oil filled transformers. Transformers oil filtration experts determine the life expectancy and efficient performance of the transformer on the basis of the oil used in the device. The oil serves two critical functions :

  • It creates an acceptable level of insulation when combined with insulating materials used in the coils and conductors.
  • Transformer oil also serve the purpose of coolant that absorb heat from the core and the windings

Manufacturers use hydrocarbon mineral oil for transformer. The insulating oil is usually obtained by fractional distillation and successive treatment of crude petroleum. This is why it is known as mineral insulating oil. It preserves the winding and core as these are completely immersed in the oil and it prevents direct contact of oxygen present in environment with cellulose made paper insulation of windings as it is prone to oxidation.

Types of transformer oil used by experts-

There are two types of transformer oil used by engineers-

  1. Paraffin based transformer oil
  2. Naphtha based transformer oil

Naphtha is more likely to oxidize as compared to paraffin oil. However, the oxidation product that is sludge present in naphtha oil is more soluble than paraffin oil. This is why sludge of naphtha based oil is not gathered at the bottom of the device.

Paraffin based oil has disadvantages but still people use it for transformer due to its easy availability.

Different parameters of transformer oil are-

  • Electrical parameters
  • Chemical parameters
  • Physical parameters

Electrical parameters include specific resistance, dielectric strength, and dielectric dissipation factor.

Chemical parameters include acidity, sludge content, and water content.

Physical parameters include viscosity, inter facial tension, pour point, and flash point.

Dielectric strength of transformer oil is called breakdown voltage of transformer oil. To measure break down voltage of transformer oil, manufacturers provide a portable kit to the clients. In this kit, oil is kept in a pot in which a pair of electrodes is fixed with a gap of 2.5mm between them. In some kits, this gap can be 4mm.

Royal transformers manufacturers are providing effective and best transformer oil filtration services worldwide. You can anytime bring your transformer oil for testing to Royal Transformers team and get accurate results at decided timeline. This article was issued by the team of engineers to make you learn about the properties of transformer oil.

Exporters Of Power Transformers From India Sharing Cooling Methods Of Transformer

transformersThe cooling arrangement of the transformer varies according to the size and capacity of the transformer. When both the capacity and size increased, the arrangement becomes extra powerful and sophisticated. In other words, transformer cooling system us an arrangement intended for power transformers that limits the released heat into a safe value with proper dissipation of generated heat.

Power transformers exporters in India supply distinct range of cooling systems for different transformers (mainly dry type transformers and oil immersed type transformers).

In dry type transformers, air is used as a coolant whereas in oil filled transformers, both air and transformer oil are used as the coolant medium. Different types of cooling methods used for transformers are as follows-

  1.Air Natural Type

This cooling method is used in dry type transformer that is having smaller ratings. This technique uses natural air, which is circulated inside the system to eliminate generated heat. These transformers are also known as self-cooled transformers in the market. This type of cooling system offers satisfactory operation, but it is limited to low voltage transformers only.

  2.Air Forced Type

This type of cooling method is used in dry type transformer and can be used in oil filled transformer as well. In this method, cool air with extreme pressure is provided to the core. The high speed fans installed in the system produce high velocity of air to the transformer.

  3.Oil Natural Air Natural Cooling (ONAN)

This system is used in oil immersed type transformers. This is the easiest method to cool down the oil immersed transformers.

  4.Oil Natural Air forced (ONAF)

Air is forcefully applied to the transformer, which is produced by high speed fans equipped inside the transformer.

  5.Oil Forced Air Forced (OFAF)

Big oil immersed transformers release more heat and for these transformers, special cooling techniques are introduced by the experts. Oil forced air forced cooling system includes both oil and air that are circulated at high speed by some extra configuration.

All these methods are specifically used for a specialized transformer device. Exporters of power transformers India have shared this information just to make the users aware of these techniques to cool down their transformer devices.

What Is A Major Concern Of Indian Transformer Manufacturers?

disDifferent sectors across the world share a growing concern regarding reliability of the transformers. Transformers manufacturers (India) do not limit their products supply to power generation authorities only. There are more industries that require a comprehensive range of transformers to run various processes without any break. Reliability is what every client expects from the manufacturers as transformer is a complex device and to maintain it, clients need reliable manufacturing unit that can ensure perfect high performing transformer at least rate.

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Perform On Line Transformer Oil Filtering Treatment On Energized Transformer

oil_filtartion-1Filtration of transformer oil is a part of conditioning, which is essential if user expects reliable performance and durability of transformer machine. One should understand that transformer oil must be free from gases, moisture, and particles that contaminate the oil and make it unfit for the machine. On line transformer oil filtration can help in getting pure transformer oil, which is free from contaminants and gases and ultimately, healthy for transformer and its components! Your transformer performance is highly dependent on the quality of the oil you use for it. Good quality of oil will make other components working well without any barrier.

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For What Reasons Servicing Points Perform Transformer Oil Filtration

transformersWith increasing rating requirements of latest transformers and power equipments, insulating material and fluids are experiencing the greater electrical stress. To manage such greater stress, it is important to have good electric strength for transformer oil along with lower water residue. When user takes help of transformer oil filtration method whenever required, he promotes long life and efficiency of the machine. Timely and proper treatment and maintenance of these insulating fluids enhance the properties of the entire power transformers’ insulating system.

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Transformer Repairing Of Burner – How It Works?

repairing_transformerSometimes it may be happen that transformers you use in different kind of appliances did not work properly but it does not mean that you have to change that part because it is quite difficult. We can use transformer repairing technique. Like Transformers makes sparks to lighten up the burner. Due to improper working of transformers, burner may not be lightening up. Then we have few pointers to make it in a very easy manner.

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