Power and Distribution Transformer

220kv 110kv, 66kv low-loss series Power and Distribution Transformer is a new generation of Power and Distribution Transformer independently developed by Daelim on the basis of combining world advanced technology. It has low partial discharge, low loss, low noise, high reliability, and peculiar sudden short circuit. protection. Its excellent performance has been recognized by users and highly praised by experts. Fully sealed and non-overhanging lid products sell well worldwide. It is tailored specifically to make you an expert in Power and Distribution Transformer.

110kV 66kV Power Transformer

Daelim 220kV high voltage transformer, use Japanese Toshiba analysis software and our company special calculation and validation procedures to the transformer core, winding. Implement body, lead, fuel tanks, etc. Parts of the optimal design and carry on the omnidirectional validation, ensure product performance. Superior process equipment. elaborate material selecting and efficient manufacturing. making the transformer has small volume, lightweight, low loss, low partial discharge, low noise characteristics, the product quality is superior, energy conservation and environmental protection, easy installation and maintenance, reliable operation, and effectively reduced product running costs.

220KV Class Three Phase Two Winding OLTC Power Transformer

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220KV Class Three Phase Two Winding NLTC Power Transformer

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220kV Power Transformer

110kV and 66kV power transformers are based on absorbing advanced technology at home and abroad. The transformer core, coil, body, lead, fuel tank and other components have been optimized and verified in all aspects. The developed low partial discharge, low Products with loss, low noise, light weight and high reliability. Its excellent performance has won high praise from users and related experts. This product has the characteristics of stability, economy, and environmental protection, and is suitable for power plants, substations, and large industrial and mineral chemical enterprises.

110KV Class Three Phase Two Winding OLTC Power Transformer

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110KV Class Three Phase Two Winding NLTC Power Transformer

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66KV Class Three Phase Two Winding OLTC Power Transformer

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66KV Class Three Phase Two Winding NLTC Power Transformer

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Three Phase Oil-Immersed Distribution Transformer

110kV and 66kV power transformers are based on absorbing advanced technology at home and abroad. The transformer core, coil, body, lead, fuel tank and other components have been optimized and verified in all aspects. The developed low partial discharge, low Products with loss, low noise, light weight and high reliability. Its excellent performance has won high praise from users and related experts. This product has the characteristics of stability, economy, and environmental protection, and is suitable for power plants, substations, and large industrial and mineral chemical enterprises.

35KV Three Phase Oil-Immersed Distribution Transformer

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20KV Three Phase Oil-Immersed Distribution Transformer

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10KV Three Phase Oil-Immersed Distribution Transformer

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Power and Distribution Transformer: The Ultimate FAQ Guide

When transformers were invented. It was imperfect, limited, and less capable of regulating electricity. But as time went on, transformers were modified and upgraded. In fact, you may not be aware that there are many types of transformers available in the market that come in a variety of different sizes, along with specific functions and designs.

 

Despite the variety of different transformers, they all have the same purpose, which is to regulate electricity.

 

But it is also important to use the right transformer because using the wrong transformer type can put yourself and the surroundings in great danger. In this case, power and distribution transformers are commonly confused as the same type.

 

Which is very dangerous to those who have little to no knowledge about transformers.

But worry no longer! DAELIM, one of the most prestigious transformer manufacturers in China, provides you with everything you need to know about power and distribution transformers.

What Are Transformers For?

Transformers are mediums for transferring energy from one circuit to another circuit by following the process of electromagnetic induction. In general, they are responsible for controlling or regulating voltage levels between circuits by either increasing (step-up) or decreasing (step-down) it down.

 

They are also capable of converting quantities from a certain value to another, and are responsible for components of both transmission of electricity in a power system, including distribution as well.


Without the use of a transformer, there is a high chance that electrical disruptions or abnormal voltages will occur. Leading to hazards like fire and explosion.

 

Yes, transformers are considered to be very important. In fact, without transformers, our electrical energies would not be regulated, controlled, and passed to our houses. You can think of transformers as the root of the tree, and power lines as its branches.

 

This is why it is essential to have a transformer in a neighborhood, village, or urban area.

What Is A Distribution Transformer?

Let us start with distribution transformers. Distribution transformers are also known as service transformers because they provide the final voltage transformation in the electric power distribution system.

 

This can also be placed above ground level or underground. If they are mounted on a pole, the one we usually see on the streets, they are considered as pole transformers in which they are located above ground level to connect it with power lines.

 

Distribution transformers usually have a rating that is less than 200 kVA (Kilo Volt Ampere). But there are some standards (depending on what country you are in) that allows units up to 5000 kVA. Distribution transformers are constantly energized even without a load, which results in reducing iron losses.

 

Unlike power transformers, distribution transformers usually do not operate full loads, because they are specifically designed to have maximum efficiency at low loads. This is where voltage regulations take place, which should also be kept to a minimum. For small leakage reactance, this is natural since that is part of the distribution transformer’s design.

 

Applications

 

Distribution transformers can be found at service drops in which you also see where the wires are connected if the transformers are above ground level. As aforementioned, distribution transformers can be placed underground which means that wires can also come from underground.

Distribution Transformers can be to supply electricity to isolated infrastructures such as a house that has no neighbors, farms, barns, etc. Another form of application is the power supply from the overhead wire of railways given with electricity (AC). For these types of applications, DAELIM suggests to use single phase distribution transformers.

Distribution transformers are capable of being connected to up to 50 houses. Several homes can even be connected to a single transformer. This is applicable to urban areas, but for rural areas, it may require one transformer per consumer. Voltage is a big factor in this when considering to use one transformer per consumer.

For large neighbourhoods and industrial complexes, it is not surprising they have multiple distribution transformers, this is because they consume a lot of electricity, which requires more regulation. The primary distribution lines from this are commonly located underground for security purposes. They are also more focused on using it for step-down or decreasing the value only.

You can also find distribution transformers at power collectors from wind farms, wherein they use it to step-up or increase the value of each wind turbine that is connected to a substation far away.

What Is A Power Transformer?

A power transformer is similar to the distribution transformer but it has its own unique characteristics and capabilities. Starting with their applications, they are used for transforming power from a circuit to another circuit without changing its frequency.

 

Does it sound familiar to you? Because that is the basic definition of a transformer, which both power and distribution transformer can do. Since there are no moving parts in power transformers, they are considered as static devices.

 

This transformer operates on an AC supply, but a transformer does work on multiple principles including the principle of mutual induction.

 

Power transformers can also be used for regulating transmission networks that are in higher voltages (Increasing and Decreasing). They are usually generated at above 200 MVA ratings. For their components, they have a primary and secondary, and a set up of one input and one output.

 

In comparison to distribution transformers, they also have one primary but its secondary is tapped or divided. It can also have two or even more secondaries.

 

Performance-wise, it is analyzed by maximum efficiency because they operate full loads, and as mentioned, distribution transformers only run at low loads or sufficient loads (20%-60%) but definitely not full loads.



Its rating is also greater than distribution transformers. Flux density is also higher than distribution transformers. Its primary windings are in a star connection, while the secondary windings are in delta connections.

How Do Power Transformers Work?

Power and Distribution Transformer
Power and Distribution Transformer

Power and Distribution transformers have an input side and an output side. This is how high-powered circuits enter the transformer, through its upper input, and exit on the output side with a rate of up to 1 kW.

 

Generators and batteries will be attached on a wire grid that is Heavi-Watt to give them a 20 kW capacity. This way, multiple transformers can be attached to supply consumers that are attached to a low wattage cable to cross tiles.

 

With that said, batteries on the output side of the transformers will be prevented since batteries have no limit to their output rates. A transformer is able to resist damage when the power draw goes beyond or above 1 kW. In the case that it overlaps, it will overload the circuit.

 

Another thing that power transformers are capable of is that they draw power from a circuit that is low wattage that is also attached to several power producers and output into a circuit that is of higher wattage,


In result, this would protect the lower circuit from overloading while it is continuously providing power to the main power circuit while taking advantage of the low wattage cable benefits.

How Do Distribution Transformers Work?

Distribution transformers have different sizes, usually heavy and it is recommended that you enhance a specific part of the module floor or platform deck at site of installation. DAELIM ensures security, which is why all transformers provided are placed on a flat level.

 

After installation, you may proceed on filling it up with transformer fluids. It is important to keep in mind that some of these transformer insulation fluids are toxic, which means you need to be extra careful when applying it in the transformer.

 

DAELIM will be responsible for checking the transformer after it is located and filled. Insulation tests will be taken as well, and after cabling there will be a follow up or second insulation test for all the windings and connections.


Other Types Of Transformers


At this point, you are now aware that there are many types of transformers out there, but since we have only discussed power and distribution transformers, let us look into the other types of transformers.


Current Transformer


Current transformers are used for measuring and protection. Specifically, when the current in the circuit is too high to apply, the current transformer is utilized to convert high currents into the specific value that the circuit requires.

 

The primary winding of a current transformer is linked in series to its main supply, and the measuring instrument’s function is to support it. The current ratio and phase relation enables the meter to cooperate with its secondary side.

 

The ratio has a great significance and phase relation because this enables the meter to keep up with the secondary side.

 

The primary current in current transformers is the vector sum of excitation current.


Instrument Transformer


Instrument transformers or also known as isolation transformers is an electric device that is used to convert current and voltage levels. The common use of instrument transformers is to secure or safely isolate secondary windings when the primary is at a high voltage level and high current supply which relays to the secondary side of the transformer to not get damaged.

 

There are two types of instrument transformers

 

  • Current Transformer ( The one mentioned above)
  • Potential Transformer

 

Potential transformers are next on this list.


Potential Transformer


Potential transformers are also known as voltage transformers, but we will refer to it as is. The primary winding of potential transformers are connected across high voltage lines, wherein its voltage is measured, and the measuring instruments and meters are linked to the secondary side.

 

In terms of its primary winding. It is grounded as a safety point. For example, the voltage ratio is 500:120 (primary to secondary), this means that the output of its voltage will be 120 Volts when 500 Volts is applied to the primary.

What Is A Static Device?

1500KVA power transformer manufactuer
1500KVA power transformer manufactuer

A static device is a device or machine that has no moving parts in it, which means it is low maintenance since there are little to almost no components in it. These transformers are designed that way in order to mitigate flammable components.

Can Power Transformers Be Used In A Distribution Network?

Yes, distribution transformers are used for distribution networks that require low voltages as a compensation to end the user connectivity, and they are commonly rated less than 200 MVA. Power transformers are used transmissions that are heavily loaded at a high voltage.

 

Specifically greater than 33 kV with supreme efficiency.

Why Is It Important To Regulate Electricity?

Electricity regulation is essential because this keeps electricity stable, without stabilization, there is a high probability that electricity will convert into a stray voltage, which can cause serious injuries and even death.

 

Furthermore, this can potentially lead to fire and even explosion.

Are Transformers Dangerous?

Yes, if they are not properly operated, which is why we highly recommend you to contact DAELIM if there is something that you do not quite understand. DAELIM would be glad to assist.

Main Difference Between Power Transformers And Distribution Transformers

Power transformers are basically used in transmission networks at high voltages for increasing and decreasing applications. Moreover, power transformers can operate at full loads while distribution transformers are only efficient at much lower rates compared to the capability of power transformers.

Conclusion

Depending on what your purpose is, both power and distribution transformers are top of its tier. If you are looking for a transformer that is capable of operating at full loads, then power transformers are what you should get, but if you are looking for a transformer that is low maintenance and capable of exceptionally operating at average loads, then distribution transformers will do.

Should you have any further questions and concerns, you can contact DAELIM, and the team will accommodate you right away. Rest assured, these transformers are excellent in regulating electricity.

DAELIM: An Electric Product & Equipment Manufacturer.