The MVa Transformer is a new high-performance modular transformer easily integrated into your local power grid. It is the only transformer that doesn’t require transformers within it, meaning less internal space and fewer cables. The MVa is also highly customizable to optimize efficiency for any load type. Daelim offers quality but inexpensive MVa Transformers for your needs.

Daelim is an electrical company specializing in designing, engineering, and manufacturing top-tier electrical products and solutions. Serving clients for more than 15 years, the company delivers top-tier products in the electrical industry.

Why Choose Daelim As Your 15 MVA transformer Supplier?

Looking for high-quality 15 MVA transformers for your industrial, commercial, or residential needs? Look no further than Daelim Belefic, one of the leading transformer manufacturers in the world.

At Daelim Belefic, we’ve been designing, engineering, and producing top-of-the-line electrical equipment for more than 15 years. Our commitment to quality, customer service, and innovation has made us the trusted partner of customers across six continents.

Our 15 MVA transformers are designed and manufactured in strict accordance with international standards, including GB 6451, IEC 60076, AS NZS 60076, CSAC88-16, ANSI/IEEE C57.12.00, and GOST R 52719. This ensures that our products are not only reliable and efficient, but also safe, environmentally friendly, and have low life cycle costs.

What sets Daelim Belefic apart from other transformer manufacturers is our focus on customization. We understand that every customer has unique needs and requirements, and we’re committed to meeting those needs with our cutting-edge service and speed. Our professional customization skills allow us to provide multiple standards and create new values for our clients.

Our expert team of electrical engineers, CAD first-class draftsmen, and R&D professionals have over 20 years of transformer design experience and are familiar with international transformer standards. We use the latest technology, machines, and modern facilities to produce transformers, ensuring that our products are of the highest quality.

At Daelim Belefic, quality is one of our core values. That’s why we strictly implement the ISO 9001 quality management system and conduct three different tests for quality: Type Test, FAT test, and Inspection test. We’re committed to providing our customers with the best products and services possible, and our dedication to quality is just one way we ensure that happens.

Don’t settle for second-best when it comes to your electrical equipment needs. Choose Daelim Belefic and experience the “DAELIM EDGE + ADVANTAGE” for yourself. Contact us today to learn more about our 15 MVA transformers and how we can customize them to meet your unique needs.

Pad-mounted Transformer

We can provide you single phase and three phase pad mounted transformer

Dry-type Transformer

Type:Cast resin; Rated Capacity: Up to 25MVA; Rated Voltage: Up to 36KV;

Pole Transformer

TypeCSP type Frequency: 50/60Hz; Rated Power: 5~167kva

Dry-type Transformer

Frequency: 50/60Hz Rated voltage:10kv, 20kv,30kv Rated Power: 400~2500kva

15 MVA TRANSFORMERS: The Ultimate FAQ Guide

What is a 15 MVA transformer, and what is it used for?

15 MVa transformers are designed to carry much higher loads than ordinary transformers and operate at high outputs, lower temperatures. MVa transformers also carry increased static and dynamic ratings, as well as a longer life expectancy.

A 15 MVa Transformer can operate at a voltage input of 1500 V. It’s most commonly used in applications that require high power and low current (not designed for residential use). You can easily find this type of transformer in arc welding machines, industrial plants, and electric robots.

Additionally, a 15 MVa transformer transfers electrical power from source to destination. The transformer has a primary and secondary winding, and you can use it for AC or DC power. This device is often found in the power distribution system of electric utility systems such as substations.

Daelim MVa transformers have specifications that are high-performance, highly efficient, and safe. They also meet ANSI, IEEE, CSA, and IEC standardization requirements. If you’re looking for a top-notch and safe 15 MVa transformer, Daelim has all the features you need!

A 15 MVA transformer is a high-capacity electrical transformer that can convert power from one voltage level to another in power systems. It is used in power generation, transmission, and distribution systems, as well as in industrial and commercial applications.

What are the typical 15 MVa transformers configuration?

Three-Phase Design

Three-phase transformers are the most common type of transformer in use today. They can deliver up to 15 MVa (megavolt amperes) of power, which is important because they have many applications.

Also, these transformers create a magnetic field that generates an electrical current from the power supply. The transformer can adjust the voltage and current by using one or all of these phases.

Additionally, the three-phase transformer is a device that uses three different voltages. It consists of three identical coils, each with a separate voltage. Then, it rotates them at the same speed against one another. The transformer’s output current varies according to the number of turns in each coil.

It is used to step up or down the voltage to transform any single voltage source into three separate phases. Then, these are connected using a common bus bar.

Thus, for a transformer to work, it must be in a three-phase configuration. The primary coil is in the middle, and the secondary coils are on either side of it. The design of three-phase transformers is more efficient than single-phase designs. This is because there are fewer resistances in this type of transformer.

Oil-Submerged Cooling

Oil-cooling is the most efficient method for power transformers to maintain their rated load. This type of cooling also can reduce operating costs by up to 40% with no additional investment.

When designing systems that require higher transformer ratings, oil-cooling is the most cost-effective way to go. 

A Complete Guide to Oil cooled transformer

15 mva transformer
15 mva transformer


Larger transformers can be worth it because of their efficiency and high reliability. The extra money spent on oil-cooled transformers can help your company save money in the long run.

Additionally, Oil-cooling is one of the most important features of a transformer. The oil-cooled transformer can deliver up to 25% higher energy than a three-phase transformer with the same rating. This allows for increased efficiency, reduced size, and reduced cost. 

Lastly, oil-cooled transformers are more resistant to power surges and reduced susceptibility to mechanical damage.

A Complete Guide to Oil Immersed filled Distribution Transformer


Although sometimes the oil oxidation products in transformer oils may affect the transformer. Oil oxidations are highly harmful acids that can attack insulation and other materials, causing overheating and degrading insulation. This will ultimately result in increased operating costs due to increased maintenance.

Winding Design

15 MVa transformers are available in designs that are either two-winding or three-winding. They are usually either single-phase or three-phase power transformers. 

Single-phase, two-winding transformers are used for low-power applications. However, three winding transformers are used for medium and high power applications.

Also, the two-winding design features one winding on the bottom and a second winding on top. This design is used in many different transformers, including step-up, step-down, and three-phase designs. 

The three-winding design has separate windings for the primary and secondary voltages.

Winding of 15 MVA transformer
Winding of 15 MVA transformer

What are the different types of the core?

A transformer core is a magnetic device used to step up or step down high voltages following the Transformers, Inc. They are made of copper, iron, nickel, or aluminum. Transformers are essential in most electrical engineering applications, including the distribution of power. The output voltage is determined by its input voltage and the number of turns on its coils.

Amorphous Steel and Metals

Amorphous steel is a transformer core made up of an amorphous alloy, which means it has no crystalline structure. This type of core is used in transformers that are designed to remain stable at high temperatures. 

The amorphous steel can be magnetized or demagnetized depending on the needs of the application. Furthermore, the Amorphous Steel core creates a transformer for greater efficiency and power output. 

Carbonyl Iron

Carbonyl Iron type of transformer cores is specially designed to reduce the risk of fire and electric shock. These types of transformers contain a very high percentage of iron material, which is denser than copper.  They’re also more resistant to corrosion and will carry heavy currents for a longer time.

Ultimate 20 MVA transformer Guide

Ferrite Ceramics

Ferrite Ceramics are the most commonly used type of core in transformers. They tend to be less expensive than other cores, but they are more fragile and require more maintenance over time.

Moreover, ferrite ceramic has high permeability and is excellent for use in transformers. The ferrite core also helps decrease the transition losses of the transformer due to the low relative permeability. 

This type of core will help improve efficiency and decrease energy consumption. Additionally, it helps protect against wear and tear on materials.

2022 Ultimate Mini Sub Manufacturers for Crypto Farm Guide

Laminated Cores

They help prevent overheating and protect against damage caused by overvoltage, under-voltage, and general industrial accidents. Lamination provides insulation between parts of the core.

The lamination enhances the performance of the transformer by keeping its insulating properties intact. Laminating also reduces the loss of electricity that occurs when there are orientation changes.

Ultimate Bitcoin Mining Power Supply Guide – Power Transformer

Silicon Steel

The silicon steel core is a type of non-ferrous metal that can withstand high currents and voltages. It allows the rotating magnetic field to flow through the material. Plus, it’s non-conductive and doesn’t allow current to leak away from the transformer.

2022 Ultimate Mini Substations for Crypto Farm Guide

Solid Iron

This one can carry large amounts of electricity. As the primary circuit, it runs on an alternating current (AC). The iron core takes all the power from the alternating current. Then, it transforms into a direct current (DC) with a magnetic field surrounding it.

The solid iron core can produce up to 95% less hum. Effective to keep the noise level down, which enables you to avoid hearing the protectors. Additionally, the efficiency is increased, and it helps in reducing the emission of electromagnetic radiation.

What is the MVa to kVa Conversion?

MVa is the amount of electrical energy that you can deliver through a conductor. The unit of measure is MVa. KVa is the transmission voltage at which an alternating current flows.

MVa to kVa conversion is a straightforward calculation using the formula: Kva = 2.5 * Mva. So, if you have a motor with an MVa of 15, multiply it by 2.5. The result is a Kva of 37.5.

2022 Ultimate Transformer Pads for Crypto Farm Guide

What is the 15 MVa Transformer price range?

A 15 MVa transformer will cost about $2,400.00. This price is while you can get a 10 MVa Transformer for approximately $1,200.00. You’ll need to decide which one would be the best choice for you.

The price range of a 15 MVa Transformer varies widely depending on the brand, manufacturer, and model. A 15 MVa Transformer might cost between $8,000 and $14,000. However, you can find one for as low as $1,500 or as high as $30,000.

2022 Ultimate Mounted Transformers for Crypto Farm Guide

What are the different 15 MVa transformers applications?

The applications for a 15 MVa transformer are quite varied. However, the main ones are in electronics, electrical engineering, transport, and industry. You can use them to produce or modify electric motor power by converting mechanical power into electrical energy. 

They are also used in power distribution systems. Because of their high voltage capability, transformers are widely used in robotics and large industries.

Electrical Power Transformer for Agricultural

15 MVa transformers applications
15 MVa transformers applications

What Is MVa In Transformer?

MVa is a term used to describe the maximum voltage and power capacity of transformers. MVA is used as the basis for the design of transformers. It is an important factor in determining how it can feed much power into a transformer before being damaged.

Is MVa The Same As Mw?

No. MVa stands for Maximum Voltage Amps. MVa is the apparent power because it’s based on real voltage and amps. MW is the real power, which is not usually measured. MVAR is a reactive power, which is always negative.

How to choose and install rural distribution transformers

What are the specifications of a 15 MVA transformer?

1.5 MVA Transformer

The specifications of a 15 MVA transformer may vary depending on the design and application requirements. At Daelim Belefic, we manufacture 15 MVA transformers in accordance with international standards such as IEC and ANSI/IEEE, and can provide customization options. The transformers are typically designed for 3-phase systems, with voltage levels ranging from 66 to 161 kV.

A 15 MVA transformer is a large power transformer that can handle a maximum power output of 15 million volt-amperes. The specifications of a 15 MVA transformer can vary based on the manufacturer, but some general specifications include:

Rated Voltage: The rated voltage of a 15 MVA transformer is typically between 66 kV to 220 kV, with a nominal voltage of 138 kV being common.

Impedance: The impedance of a 15 MVA transformer is usually between 6% to 8%, depending on the specific model and design.

Cooling Method: A 15 MVA transformer can be designed with either a forced-air or liquid cooling system, which affects the size, weight, and efficiency of the transformer.

Phase: A 15 MVA transformer can be single-phase or three-phase, depending on the application and voltage requirements.

Frequency: The frequency of a 15 MVA transformer is typically 50 Hz or 60 Hz, depending on the country and power grid it is designed for.

It’s important to note that the specifications of a 15 MVA transformer can vary based on the specific application and requirements of the user. As such, it’s important to consult with a reputable transformer manufacturer like Daelim Belefic to ensure that you are selecting the right transformer for your needs. They can provide you with a detailed list of specifications and customize the transformer to your specific requirements, such as voltage ratios, insulation levels, or protective devices.

If you are looking for a high-quality 15 MVA transformer, be sure to consider the technical specifications and quality standards. In addition, the dimensions and weight of the transformer should also be considered as they can impact the installation and transportation of the equipment. Finally, price is an important factor to consider, but it should not be the only factor. A low price may indicate a lower quality or substandard components, which can lead to maintenance or safety issues in the future.

Ultimate Dirstribution Transformer for Guide

How much does a 15 MVA transformer cost?

The cost of a 15 MVA transformer can vary depending on a number of factors such as the manufacturer, construction materials, insulation type, and delivery location.

Generally, the cost of a 15 MVA transformer can range from tens of thousands of dollars to hundreds of thousands of dollars. The high cost of these transformers is due to the complexity of their construction, the high-quality materials used, and the extensive testing required to ensure their performance and reliability.

Additionally, the cost of a 15 MVA transformer can also be influenced by the supplier’s reputation and experience in the industry. Some suppliers may charge higher prices for their products due to their experience, reputation, and the quality of their products.

It’s important to note that the cost of the transformer is just one factor to consider when selecting a supplier. Other important factors to consider include the supplier’s experience, reputation, customer service, technical support, and product warranty. When evaluating potential suppliers, it’s important to take all of these factors into account to ensure that you’re getting the best value for your investment.

How To Choose A Hydro Transformer?

What are the dimensions of a 15 MVA transformer?

The dimensions of a 15 MVA transformer can vary depending on the manufacturer and the specific design of the transformer. However, in general, the dimensions of a 15 MVA transformer can be estimated based on its weight and voltage class.

For a 15 MVA transformer, the weight can typically range from 50,000 to 90,000 pounds or more, depending on the type of cooling system used and the specific design of the transformer. The dimensions of the transformer can also vary based on the type of cooling system used, with liquid-immersed transformers typically being larger than dry-type transformers.

In general, the dimensions of a 15 MVA transformer can range from 12 to 20 feet in length, 10 to 14 feet in width, and 10 to 16 feet in height, although these dimensions can vary based on the specific design and cooling system used. It is important to consider the available space and transportation requirements when selecting a 15 MVA transformer, as well as any local regulations that may impact its installation.

It is recommended to consult with a reputable transformer manufacturer or supplier for more specific information on the dimensions and other specifications of a 15 MVA transformer, as well as pricing and delivery options.

What is the Function of Transformer Core?Everything You Should Know

How much does a 15 MVA transformer weigh?

15 MVA Transformer Specification

The weight of a 15 MVA transformer can vary depending on its specifications, materials used, and the level of customization required. Typically, a 15 MVA transformer can weigh from 50 to 100 tons.

What Is The Best Way To Dry Out a Wet Transformer?

What materials are used to manufacture a 15 MVA transformer?

The materials used to manufacture a 15 MVA transformer vary depending on the design and application requirements. Generally, the transformer windings are made of high-quality copper or aluminum wire, which is coated with insulation to prevent short circuits. The transformer core is made of high-grade silicon steel laminations, which have low core loss and high magnetic permeability. The insulation materials used in transformers must be able to withstand high voltages, temperatures, and stress. Different types of insulation materials are used in different parts of the transformer, such as epoxy resins, polyester films, and mica sheets.

In addition to the primary materials, Daelim Belefic also ensures that other components such as bushings, tap changers, cooling systems, and monitoring devices are made of high-quality materials to ensure the durability and reliability of the transformer. The company uses only qualified standard materials which meet the standards of world-renowned suppliers through international procurement as well.

Moreover, Daelim Belefic also adheres to strict quality control standards to ensure that only the best materials are used in the manufacturing process. By using high-quality materials, Daelim Belefic’s transformers are able to perform efficiently and reliably for a long time.

What type of service does Daelim Belefic offer for 15 MVA transformers?

Daelim Belefic offers a comprehensive range of services for 15 MVA transformers, including design, engineering, manufacturing, testing, installation, and maintenance. We also provide technical support and customization options to meet our customers’ specific requirements.

3 MVA Transformer, Everything You Should Know

What is the primary function of a 15 MVA transformer?

The main objective of a transformer is to transform voltage levels. The 15 MVA transformer, a unit boasting both power and precision, predominantly serves to step up or step down voltage. This adaptation is essential in transmitting power across various parts of an electric grid.

  • Voltage Regulation: With a transformer, voltage regulation becomes seamless. It ensures that power loads receive the right voltage.
  • Safety: By stepping down high voltage to a safer level, the transformer ensures equipment and user safety.
  • Power Transmission: By stepping up the voltage, transformers allow efficient power transmission over long distances with minimal losses.

The beauty of the 15 MVA Power Transformer lies in its capacity to handle considerable energy amounts. Its design ensures that the transformer remains efficient and reliable even during peak loads.

How does the 15 MVA transformer's price compare to others in the market?

Comparing the 15 MVA transformer price with other models reveals a balance of cost and capacity. Given its power capabilities, one might expect to shell out a premium. However, several factors play into its cost:

  • Material: The quality of materials used can influence the price. Premium quality often equates to a higher cost.
  • Brand: Established brands with a reputation for quality may have higher prices.
  • Specifications: Customized features or specifications can influence the transformer's price.

When you assess the 15 MVA Power Transformer Price, it's crucial to consider the long-term return on investment. Its durability, efficiency, and potential energy savings can offset initial costs over time.

What are the typical specifications for a 15 MVA transformer?

Specifications provide an insight into the transformer's capabilities. Here's what to typically expect from a 15 mva transformer specification:

  1. Rated Power: 15 MVA
  2. Frequency: 50/60 Hz
  3. Cooling Method: Oil or Air-cooled
  4. Phases: Three-phase or single-phase
  5. Voltage Ratio: Depending on design and application
  6. Temperature Rise: Defined by the cooling method and design
  7. Insulation Class: Varies based on application and design

It's essential to note that specific requirements might demand customized specifications. Always consult with the manufacturer or a professional before making a selection.

How does one read and understand a 15 mva transformer diagram?

Understanding a transformer diagram is pivotal in installation and maintenance. The 15 mva transformer diagram illustrates its internal wiring and components.

  • Primary Winding: This is where the input, or "source" voltage, is applied.
  • Secondary Winding: The transformer output is derived from this winding. .

  • Core: Typically made of iron, the core's primary purpose is to provide a pathway for the magnetic flux.

  • Taps: These are points on the windings that can be used to change the turn ratio of the transformer, effectively altering the output voltage.
  • Insulation: Depicted by clear spaces or specific symbols, it prevents unwanted electrical conduction between parts.
  • Cooling System: This could be fans or radiators for oil-cooled transformers, ensuring the unit does not overheat.

Deciphering the 15 mva transformer diagram requires a bit of technical know-how. For those unfamiliar, seeking guidance from an engineer or a representative from a trusted brand like Daelim is recommended.

Why is weight an essential aspect of a 15 mva transformer?

Weight is a crucial factor when considering the installation and transportation of a transformer. The 15 mva transformer weight is a testament to the materials used, the size of the core, and the amount of cooling fluid inside.

  • Installation: A heavier transformer might require specialized equipment or reinforcements to place it securely.
  • Transportation: Weight affects transportation costs and the type of vehicle needed to move the transformer.
  • Cooling: Heavier transformers may have more cooling oil, influencing maintenance protocols.

Considering the 15 MVA Power Transformer, the weight ensures stability, reducing the risk of tipping or movement during operation.

What is the conversion between 15 mva to kva?

MVA and kVA are both units of apparent power. The main difference between them is the scale. 1 MVA is equivalent to 1000 kVA. Therefore, 15 mva to kva conversion results in 15,000 kVA.

How does the 15 mva transformer enhance energy efficiency?

Efficiency is the backbone of any industrial equipment. The 15 MVA transformer is no exception. Its design emphasizes minimal energy losses during transformation. Here's how:

  • Reduced Core Losses: The core material is optimized to reduce hysteresis and eddy current losses.
  • Optimal Winding Design: Windings are designed to minimize resistive losses.
  • Cooling System: Efficient cooling systems ensure that the transformer operates within safe temperature limits, reducing energy wastage due to overheating.

The 15 MVA Power Transformer stands as a beacon of energy efficiency, playing a significant role in sustainable and economical power distribution.

Are there special maintenance protocols for a 15 MVA Power Transformer?

Absolutely! Maintaining a 15 MVA Power Transformer extends its lifespan and ensures optimal performance. Common protocols include:

  1. Regular Oil Checks: For oil-cooled transformers, it's essential to check the oil level and quality.
  2. Inspecting Insulation: Ensuring that the insulation remains intact prevents unexpected breakdowns.
  3. Checking Physical Components: Looking out for signs of wear or damage, especially in connections and windings.
  4. Temperature Monitoring: Keeping an eye on operational temperatures ensures the unit stays within safe limits.

Remember, a well-maintained transformer not only performs better but also poses fewer safety risks.

How do I ensure the safety of a 15 mva transformer?

Safety is paramount. The 15 mva transformer, given its size and capacity, demands keen attention to safety protocols. These include:

  • Regular Inspections: Catching issues early can prevent bigger problems.

  • Physical Barriers: Installing fences or barriers around the 15 MVA transformer prevents unauthorized access and protects against accidents.

  • Grounding: Proper grounding of the transformer is essential to prevent electrical shocks and equipment damage.
  • Fire Safety Measures: Due to the oil inside, transformers can pose a fire risk. Having fire extinguishers and suppression systems nearby is a must.
  • Safety Signage: Placing warning signs around the transformer area informs personnel of potential hazards.
  • Overload Protection: Implementing protective relays can help prevent the transformer from overloading and potentially damaging the equipment.

Safety isn't just about protocols; it's about creating a culture of awareness and responsibility. For a 15 MVA Power Transformer, this is even more critical given its vital role in power distribution.

What makes a 15 MVA transformer standout in industrial applications?

Industrial applications often require robust and reliable power solutions. The 15 MVA Power Transformer is a preferred choice for many industries because:

  1. Capacity: Its high capacity ensures it can handle the power demands of large industrial complexes.
  2. Efficiency: Reduced energy losses translate to cost savings in operations.
  3. Versatility: Suitable for various applications, from manufacturing plants to energy distribution hubs.
  4. Reliability: Built with quality materials and precise engineering, the transformer promises consistent performance.
  5. Customizability: Many manufacturers offer customization options, ensuring the transformer meets specific industry needs.

When industries seek reliability and power, the 15 MVA transformer often emerges as the top choice.

How do I select the best 15 MVA transformer for my needs?

Choosing the right transformer is a blend of technical requirements and practical considerations. When looking at the 15 mva transformer specification, consider:

  • Application: Determine the primary use. Is it for a factory, a power plant, or a commercial building?
  • Load Capacity: Ensure the transformer can handle the maximum load of your facility.
  • Cooling System: Decide between air-cooled or oil-cooled based on the location and cooling requirements.
  • Budget: While quality should never be compromised, compare the 15 MVA Power Transformer Price across different brands to find the best value.
  • Space: Consider the installation area. Ensure the transformer fits and leaves room for maintenance activities.

Always consult with professionals and potentially seek advice from trusted brands like Daelim to make an informed choice.

In conclusion

The 15 MVA transformer stands as a testament to modern engineering and the quest for efficient power distribution. Whether for industrial applications, commercial buildings, or power plants, its role is undeniable. With safety, efficiency, and reliability at its core, it's an investment that promises returns in uninterrupted power and operational savings.

Final Wrap-Up

The 15 MVa Transformer is a powerful, efficient machine that provides up to 48,000 volts of power. It uses only half the power of other transformer machines. Also, it has a wide range of applications for our homes and businesses. Its unusual features make it worth the investment.

This Daelim product will change the way you produce, deliver, and consume energy. It’s perfect for your new business or any other applications that need great energy yet are efficiently used. If you need MVa transformers, Daelim may have just what you’re looking for.

About Bin Dong

Hello, I am Bin, General manager of Daelim which is a leading transformer manufacturer. As a expert, I am glad to share my experience in transformer to you. I believe our professional team can always provide you with high quality service and we are ready to provide you with one stop solution. If you have problems when you are looking for the equipment, what you need to do is tell us.

Custom 15 MVA Transformer

Although there are many different styles of transformers on the market, you may find that there is no one that suits you. At this time, you can contact Daelim.

Daelim is a manufacturer specializing in the design and production of 15 MVA power transformers. Daelim has more than 15 years of experience in transformer design. Engineers can design and produce 15 MVA power transformers that meet your requirements according to your needs.

Download Resource