The Ultimate Guide to the 300kVA Transformer

300 kVA transformer generally refers to a transformer with a rated power of 300kva, which is often used in factories, hospitals, shopping malls, residential areas, and other places. It is easy to install and has a wide range of applications, so it is very popular in the global market.

300kva pad mounted transformer price300kva transformer price

Daelim is a leading manufacturer of transformers that adhere to the IEEE/CSA standards. Their 300kVA transformers are crafted using high-quality materials and are free from any harmful substances. With UL/cUL, CESI, and CSA certificates, these transformers offer the advantages of both safety and high efficiency. They are specifically designed to deliver stable power supply, ensuring a reliable source for factories and other establishments.

 

Daelim understands the importance of meeting individual customer requirements. Hence, their transformers can be customized according to specific standards, technical parameters, accessory brands, colors, and more. Moreover, Daelim Transformer takes pride in providing excellent after-sales service. Customers can enjoy a minimum warranty period of two years, guaranteeing prolonged usage without the need for frequent replacements.

Table of contents

1. What is a 300kVA transformer?
2. What are the types of 300 kVA transformers?

3. What is the 300 kVA transformer price?
4. How much does a 300 kVA transformer weight?
5. How to choose a 300kva transformer?
6. What is the application of a 300kVA transformer?

7. How to install a 300kva transformer?
8. 300kva transformers for sale


What is a 300kVA transformer?

A 300kVA transformer indicates a transformer with a capacity of 300 kilovolt-amperes (kVA), representing its apparent power. When the specific load is unknown, it is not possible to determine the exact values of active power and reactive power.

Learn more: The Ultimate Guide to 300kVA Pad Mounted Transformer


What are the types of 300 kVA transformers?

Generally, 300kVA transformers can be classified into oil-immersed transformers and dry-type transformers. Oil-immersed transformers are more cost-effective and widely used, commonly found in various areas. A 300kVA oil-immersed transformer has a rated capacity of 300kVA and features a core and winding inside an oil tank, with insulating oil used as the cooling medium to regulate its temperature. Depending on the cooling method, it can be further divided into immersed natural cooling transformers and immersed forced air cooling transformers.

Moving on to specific types of 300kVA transformers:

300kVA Pad-Mounted Transformer

300kva pad mounted transformer
This type is prevalent in North and South America. The 300kVA pad-mounted transformer is designed to be tamper-proof, dust-proof, and moisture-proof, making it easy to install. It is commonly used in underground power systems, often installed in urban areas such as residential zones, parks, and hotels. The color schemes typically blend well with the surroundings, using shades like Munsell 7GY3.29/1.5 and ANSI 70# Gray.

Learn more about Pad Mounted Transformer

300kVA Skid-Mounted Transformer

300kva skid mounted transformerThe 300kVA skid-mounted transformer is extensively used in Canada, the United States, and other North American regions. Its detachable structural components allow for easy transportation and installation. Typically mounted on skids or bases, these transformers are often combined with AIS, GIS, or hybrid switchgear and other protection and control equipment to form skid-mounted substations. They find applications in industrial settings, construction sites, and other temporary power supply scenarios requiring mobility and quick installation.

Learn more about Skid Mounted Transformer

300kVA Pole-Mounted Transformer

300kva pole mounted transformer

The 300kVA pole-mounted transformer comes in single-phase and three-phase variants. Single-phase pole-mounted transformers are used in single-phase power supply systems, featuring separate high and low-voltage terminals. They can be conventional or CSP (self-protected) types and are commonly employed in sparsely populated rural areas. Three-phase pole-mounted transformers, on the other hand, are designed for three-phase power supply systems and are installed on pillars, iron frames, or poles. They are predominantly utilized in suburban and rural areas.

 

300kVA Dry-Type Transformer

The dry type of transformer is oil-free, offering excellent fire and explosion-proof characteristics. It is primarily deployed in locations such as shopping malls and gas stations that require stringent fire protection and explosion-proof performance.

 

Consider the unique features of each 300kVA transformer type mentioned above to determine the most suitable option for your specific needs.

Read more: How Much Do You Know For The Different Types Of Transformers?


What is the 300 kVA transformer price?
300 kva transformer price
The price of a transformer is influenced by various factors. When it comes to a 300kVA rated power, a transformer made with copper wire tends to be more expensive than one made with aluminum wire. Additionally, dry-type transformers generally have a higher price compared to oil-immersed transformers. Moreover, the voltage level also impacts the transformer's price, with higher voltage options resulting in increased costs. Standard transformers can be equipped with accessories like lightning arresters and fans, which will raise the price accordingly.

 

For a 300kVA oil-immersed transformer without any additional accessories, the price typically ranges from $5,000 to $7,000 USD. On the other hand, a 300kVA dry-type transformer usually has a slightly higher price, ranging from $6,000 to $8,000 USD. It's important to note that these prices may vary due to factors such as exchange rates and other market conditions.

Reading more about Oil Immersed Transformer


How much does a 300 kVA transformer weight?

The weight of a 300kva oil-immersed transformer is about 1400kg, and the dry-type transformer is lighter than the oil-immersed transformer, about 1200kg.


How to choose a 300kva transformer?

There are a variety of transformer capacities on the market for customers to choose from, but it is not that the larger the transformer capacity, the better. Instead, it is necessary to take the existing load as the basis and properly consider the load development. Generally, the transformer capacity can be determined according to the five-year electric power development plan. If the capacity of the transformer is too small, the load loss of the transformer will increase, which is extremely unreasonable economically and technically.

Therefore, it is extremely important to choose the correct transformer capacity. To select a 300kva transformer, first of all, it is necessary to determine whether a transformer with a rated capacity of 300kva is needed according to the existing load. Secondly, the primary voltage and secondary voltage are determined. Finally, according to the actual needs, the accessories to be installed, such as lightning arrester and fan, should also be selected.

You may enjoy: How to choose the best distribution transformer?


What is the application of a 300kVA transformer?

300kva step-up transformer

300kVA step-up transformer can output the input low-voltage and large current into high-voltage and small current. It plays an irreplaceable role in the power system and can provide safe and reliable power distribution to meet industrial power and large-scale power consumption Step-up transformers can be divided into small step-up transformers and large step-up transformers. Small step-up transformers are widely used in small electronic and electrical equipment because of their small size and lightweight. Large step-up transformers can provide high voltage levels, so they are often used in industrial fields and substations.

 

300 kVA step-down transformer

300kVA step-down transformer is opposite to 300kVA step-up transformer. It converts the input high voltage into a low voltage output. All power supplies are equipped with voltage reducers to make the circuit operate in a safe range and ensure a continuous, stable, and reliable power supply.


Distribution transformer 

300kVA distribution transformers are widely used in distribution systems.

Read my article on: What Is Distribution Transformer?


300 kVA 3-phase transformer

Compared with the single-phase transformer, the three-phase transformer occupies less space, is lighter in weight, and is more convenient and economical to transport. The three-phase transformer can be divided into the core type and shell type. A core type three-phase transformer is common, and it is also the type produced by most transformer manufacturers. Compared with a shell-type transformer, it is more durable and has a low loss. Three-phase transformers have two connection groups, triangle connection, and star connection. These two connection methods are common, and these two connection groups are generally adopted by the types of transformers circulating in the market. The 300kva three-phase transformer can generally meet the power distribution requirements of factories and large shopping malls, and the transformer generally needs regular maintenance, so the service life can be as long as 2 years or more, without frequent replacement.

Try for free: 3 Phase Pad Mounted Transformer


300kva pole-mounted transformer

300kva pole mounted transformer

In terms of appearance, the pole-mounted transformer is a cylindrical transformer installed above the pole. Installing the transformer above the pole can not only reduce the probability of the transformer being damaged by man but also reduce the risk of injury to animals and humans. Since the shell of the pole-mounted transformer is exposed to the outside world for a long time, it is easy to be corroded by the rain and other external environments. Therefore, generally, anti-corrosive coatings are applied to the tank to protect the transformer and prolong its service life. 300kVA pole-mounted transformer is a large capacity transformer in pole mounted transformer, which can meet high power demand. Especially in rural areas, a 300kVA pole mounted transformer is often used in the power supply systems, and this type of transformer can be seen everywhere.

Keep reading: Daelim helps you to know more about pole-mounted transformer


How to install a 300kva transformer?

1 Before installing the power transformer, the position to be installed shall be inspected and tested to ensure that it is suitable for installing the transformer.
2 Check whether the transformer is damaged. In case of obvious oil leakage, please be sure to suspend the installation and contact the maintenance personnel for repair.
3. Check whether the accessories to be installed are complete and damaged, and determine the location of the accessories to be installed.
4 Strictly follow the requirements of the manual during installation. If necessary, contact professional personnel to assist in installation to avoid danger and ensure personnel safety. Security.

Try for free: Step-by-Step Guideline On Installing A Transformer

 

300kva transformers for sale

Daelim is a Chinese transformer manufacturer, that can design and produce various types of 300kva transformers for sale., with more than 20 years of experience in the design, production, assembly, and export of transformers. The company can produce transformers that meet a variety of international standards, such as IEEE/CSA/IEC/DOE/AS and other international standards. Its products are exported to most regions of North and South America. It has a rich export experience and has a broad foreign market. You are welcome to order from foreign customers. We can provide the most favorable prices and the best quality transformers.


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