The Ultimate FAQs Guide To 13.8kV Transformer

The Daelim 13.8 kV transformer is available in various versions and designs to fit a range of output voltages and usage conditions on both the primary and secondary sides. This comprehensive FAQs guide will answer some of the most commonly asked questions about 13.8 kV transformers so that you can make an informed decision when selecting the right model for your needs.

Table of contents

1. What is the 13.8 kV Transformer? 2. Is 13.8 kV High-Voltage? 3. Types of 13.8 kV Transformer 13.8 kv Single Phase Transformer 13.8 kv Dry Transformer 13.8 kv Oil Immersed Transformer 4. Rating of 13.8kV Transformer 5. How Much Does a 13.8kv Transformer Weight? 6. 13.8kv Transformer Dimensions Dimensions for an Aluminum 13.8 kV Transformer  Dimensions for a Copper 13.8 kV Transformer 7. 13.8kv to 480v transformer 8. 13.8kV To 4.16kV Transformer 9. 12.47 kV to 480 V Transformer 10. 13.8kV and 12.47 kV Transformer Standards 11. Medium-voltage Transformer Manufacturers

What is the 13.8 kV Transformer?

A 13.8 kV transformer is a type of electrical device used to convert between two different voltages on either the primary or secondary side. At 13.8 kV, it's a medium-voltage transformer that usually operates in the distribution network. Its primary purpose is to transform voltage from one level to another, usually between the primary and secondary windings. 

13.8 kV transformers are usually found in various settings, such as industrial facilities, distribution substations, and even smaller commercial buildings. Since it's a distribution transformer, it uses electromagnetic induction to transfer alternating currents and step down the voltage from the primary to secondary windings. This process differs from other transformers that use electronic switching to transfer energy.

Learn more: 10.5MVA-13.8/2.4kV Substation Transformer 

 

Is 13.8 kV High-Voltage?

13.8 kV is considered a medium voltage for an electrical transformer. High-voltage transformers have voltages ranging from 72.5 kV upwards, while medium-voltage transformers have between 3.3 kV to 40 kV. Low-voltage transformers have voltages that are below 3.3 kV.

Since it's a medium-voltage transformer, the 13.8 kV transformer is usually used in distribution networks to decrease the voltage from the primary to secondary windings. Therefore, it's suited for various applications requiring a lower voltage on the secondary side, such as industrial facilities and distribution substations.

 

Read more: High Voltage Transformer Guide In 2022

 

Types of 13.8 kV Transformer

There are three main types of 13.8 kV transformers: 

• 13.8 kV single phase transformer 
• 13.8 kV dry transformer
• 13.8 kV oil-immersed transformer

 

13.8 kv Single Phase Transformer

The single phase is the most common variant of a 13.8 kV transformer. It supplies adequate power to residential or commercial properties that use this type of transformer. In a single-phase, the primary winding of a single-phase transformer connects to the main power supply. The secondary winding, on the other hand, connects directly to the load.

Get it now: Tips for single phase transformer

 

13.8 kV Dry Transformer

A dry-type transformer uses air as its medium for cooling instead of the more popular oil-immersed transformer, which uses oil. Because of this, dry transformers are economically friendlier as there is no risk of oil spills, leaks, or other potential hazards. They're also easier to use and have a much lower price compared to oil-immersed transformers.

 

A 13.8 kV dry transformer also offers easier maintenance than its oil-immersed counterpart, which requires regular oil changes. Additionally, dry-type transformers don't need severe fireproofing measures as they're not as flammable as oil-immersed.

 

However, there's also a downside to this type of transformer. For instance, since it relies on air alone for cooling, it tends to have more frequent heat loss. That's why it's not as efficient or long-lasting as an oil-immersed transformer.

Try for free: Dry Transformer: The Ultimate FAQs Guide - Daelim

 

13.8 kV Oil Immersed Transformer

As the name suggests, a 13.8 kV oil-immersed transformer uses oil or other liquid-based substances as its cooling method. This type of transformer is more efficient than air-cooled because of its lower heat losses thanks to the dielectric properties of the oil.

 

Additionally, an oil-immersed transformer is more reliable and has a longer lifespan due to its ability to withstand higher temperatures. 

 

However, this type of transformer is also more expensive than air-cooled transformers and requires more maintenance due to constant oil changes. There's also the threat of oil spills and leakages that can damage not only the environment but your transformer as a whole.

Read on: How much do you know about oil-immersed distribution transformers?

 

Daelim produces 13.8kV three-phase pad mounted transformers, 13.8kV single phase pad mounted transformers, 13.8kV substation transformers, 13.8kV single phase pole mounted transformers, and 13.8kV cast resin dry type transformers. Therefore, if you have requirements or questions, please contact the Daelim team.

 

Rating of 13.8kV Transformer

The rating of a 13.8 kV transformer is given in kVA, which stands for kilovolt-amperes. It's a unit of measurement used to rate the capacity of a transformer. 

 

The rating of a transformer is determined by the primary and secondary voltages and the secondary current. For example, a 13.8 kV to 240 V transformer with a secondary current of 25 A has a rating of 3.5 kVA. 

 

The higher the rating, the more power the transformer can handle. In addition, the higher the rating, the more expensive the transformer will be. 

So, if you're looking for a transformer for your home or small business, you won't need one with a high rating. Conversely, if you're looking for a transformer for an industrial application, you'll need one with a higher kVA (or MVA) rating.

 

For 13.8 kV transformers, VA ratings are typically in the 2,500 kVA range. The capacity of the Daelim 13.8kv transformer is 10kva-3750kva. If you have special requirements, Daelim's professional engineers can also provide solutions.

Reading on: The Ultimate Guide to 2500KVA Transformer

 

How Much Does a 13.8kv Transformer Weight?

The weight of a 13.8 kV transformer depends on the type of 10kv transformer. However, a standard-sized 13.8 kV Trihal cast resin dry type transformer can weigh up to 8,102 lbs (3,675 kg).

When talking about the weight of a 13.8 kV transformer, there are considerations that you'll need to take into account, such as the material used (e.g., aluminum, copper, resin), the size, and the number of phases that the transformer has.

 

For example, a standard-sized 13.8 kV cast-resin dry type transformer will be lighter than a 13.8 kV oil-immersed transformer. This is because you'll have to consider the weight of the oil that the oil-immersed transformer contains. 

Get it now: Ultimate guide to cast resin dry-type transformer

 

The weight of the 13.8 kV transformer can also vary depending on the number of phases that the transformer has. For example, a three-phase transformer will weigh more than a single-phase transformer. In addition, the weight can also vary depending on the size of the transformer. The larger the capacity, the heavier the transformer will be.

 

13.8kv Transformer Dimensions

The Dimensions of a 13.8 kV transformer will depend on factors such as the materials used to create the transformer (Aluminum or Copper) and their kVA ratings. Here are some examples of 13.8 kV distribution transformer dimensions:

Dimensions for an Aluminum 13.8 kV Transformer (kVA = L x W x H):

• 300 kVA = 1,800mm x 1,500mm x 2,200mm
• 500 kVA = 1,800mm x 1,500mm x 2,200mm
• 1000 kVA = 2,200mm x 1,500mm x 2,200mm
• 1,500 kVA = 2,400mm x 1,800mm x 2,200mm

Dimensions for a Copper 13.8 kV Transformer (kVA = L x W x H):

• 300 kVA = 1,800mm x 1,500mm x 2,200mm
• 500 kVA = 1,800mm x 1,500mm x 2,200mm
• 1000 kVA = 2,000mm x 1,500mm x 2,200mm
• 1,500 kVA = 2,400mm x 1,800mm x 2,200mm

Read my article on:The Ultimate Guide to 1500kVA Transformer

 

13.8kv to 480v transformer

Low Voltage (480V) transformers and medium voltage (13.8 kV) transformers differ significantly in all aspects—they tend to flow in different directions. Fortunately, 13.8 kV to 480V transformers can transform voltages and help the electric power distribution system work smoothly.

 

For it to be successful, the voltage will need to increase while the amperage decreases. This process will transform medium-voltage power into low-voltage power. In addition, the rectifier, which is at a low voltage, will help convert the transformer's output from RFI to DC. 

 

Due to the wide range of configuration options that this voltage transformer provides, this type of transformer can convert electrical energy by using two sets of electric windings to transmit the current and change the voltage.

 

This medium-to-low voltage transformer is valuable equipment for any business or homeowner. It provides smooth and consistent power that can transform 13,800 volts into 480 volts. This makes it perfect for applications with low voltage, but the source only provides medium voltage, such as in an office building. 

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13.8kV To 4.16kV Transformer

The 13.8kV to 4.16kV transformer is a voltage transformer used to convert the voltage from 13,800 volts to 4,160 volts. This transformer is often used in applications requiring a lower voltage, but the source only provides a higher voltage.

 

This transformer can be used in both commercial and industrial settings. In commercial settings, this transformer can convert the voltage from a medium-voltage source to a lower voltage needed for office equipment. In industrial settings, this transformer can convert the voltage from a high-voltage source to a lower voltage needed for machinery.

 

This transformer is available in both single-phase and three-phase models. The single-phase model is typically used in lower-power applications, while the three-phase model is used in higher-power applications.

Keep reading: Transformer Efficiency: The Ultimate FAQs Guide - Daelim

 

12.47 kV to 480 V Transformer

A 12.47 kV to 480 V transformer is a voltage transformer used to convert the voltage from 12,470 volts to 480 volts. This substation takes medium voltage 12.47 kV three-phase electricity and transforms it into low voltage 0.48KV (480V) three-phase electricity. This unit allows operators to safely distribute medium voltage 15KV power from various sources, including generators and direct grid power.

 

This type of transformer can be used in various applications with a wide range of configuration options. This includes both commercial and industrial settings. For example, in commercial settings, this transformer can convert the voltage from a medium-voltage source to a lower voltage needed for office equipment.

 

In industrial settings, this transformer can convert the voltage from a high-voltage source to a lower voltage needed for machinery. That way, businesses can have the necessary machinery without worrying about the high voltage.

 

13.8kV and 12.47 kV Transformer Standards

The IEC and BS standards for transformers and their parts are widely applied.

Standards for both 13.8kV and 12.47 kV transformers. Due to the fact that each country has different laws and regulations, the transformer standards depend on which country it is being used. Therefore, the local electric authorities either adopt these standards or create their own based on their needs.

The following is a list of the most frequent electrical applications' primary standards:

• IEC 60076 Power Transformers
• IEC 62271-202 High to medium-voltage/low-voltage prefabricated substation
• IEC 62271-100 High to medium-voltage alternating-current circuit breakers
• IEC 62271-102 Alternating current (AC) disconnectors and earthing switch
• IEC 62271-105 High to medium-voltage switchgear and controlgear AC.
• IEC 60137 Insulated bushings for alternating voltages above 1,000 Volts.
• IEC 60529 Classification of protection provided by transformer enclosures

These standards help ensure the safety and proper functioning of 13.8kV and 12.47kV transformers. They cover everything from the materials used to construct the transformer to how it is installed and operated. In addition, these standards help to ensure that the transformer will work properly with other electrical equipment that it is connected to.

Try for free: The Impact of Impedance on Transformer Design

 

Medium-voltage Transformer Manufacturers

The global market for medium voltage transformers is projected to increase by 2.5% annually from 2020-2025. A few of the key drivers behind the global medium voltage transformer market's expansion are:

The increasing electricity demand is owing to the rapid urbanization in developing countries.

 

The growing development of transmission and distribution (T&D) networks to integrate renewable energy resources.

 

Furthermore, the T&D network will experience an upgrade to minimize losses, necessitating the replacement of medium-voltage transformers. Although a large investment is needed to create and improve the power transmission and distribution network, current weak investments are holding back market growth.

The market for medium-voltage transformers includes the following factors:

Type

• Liquid-filled transformer
• Dry-type transformer
• Mounting
• Pad-mounted transformer
• Pole-mounted transformer

 

Application

• Residential
• Commercial
• Industrial

 

Geography

• North America
• South America
• Europe
• Asia-Pacific
• Africa
• Middle-east

 

With that in mind, here are some of the top manufacturers of medium-voltage transformers:

• Daelim
• ABB
• Siemens AG
• Schneider Electric SE
• General Electric (GE)
• Eaton Corporation
• Mitsubishi Electric Corporation
• Toshiba Corporation
• Hyundai Heavy Industries
• CG Power and Industrial Solutions Limited (CGPIS)
• LSIS Co. Ltd.

 

Daelim is a leading manufacturer of 13.8 kV transformers and other medium-voltage transformer variants. Our transformers are designed and built to the highest standards, ensuring reliable power delivery for various applications. We offer both pad-mounted and pole-mounted transformers to suit your specific needs.

 

Daelim ship its products to customers in North America, South America, Europe, Asia-Pacific, and Africa. If you would like more information about our products or services, please do not hesitate to contact Daelim by email at servive@daelim-electric.com or by telephone:+86-13051965423. Daelim always looks forward to hearing from you soon.

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