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.

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.

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.

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

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 Substation Power Transformer

The 300kVA substation power 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 Substation Transformer

300 kVA Pole Mounted Transformer

The 300 kVA 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.

300 kVA 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?

The price of 300 kVA transformer is influenced by various factors. 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 300 kVA 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 filled transformer is about 1400kg, and the dry-type transformer is lighter than the oil-immersed transformer, about 1200kg.

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What is the application of a 300 kVA transformer?

A 300 kVA transformer, whether used as a step-up, step-down, distribution, or three-phase transformer, serves various critical applications across different sectors of the power industry. Here's a detailed breakdown of its applications:

Step-up Transformer (300 kVA): A 300 kVA step-up transformer plays a crucial role in increasing low-voltage, high-current electricity into high-voltage, low-current electricity. This transformation is essential for efficient long-distance transmission and is commonly employed in industrial settings and substations where high voltage is required to meet large-scale power demands.

Step-down Transformer (300 kVA): Conversely, a 300 kVA step-down transformer reduces high voltage to a lower, safer level suitable for distribution and consumption. It ensures stable and continuous power supply to various circuits, enhancing safety and reliability in industrial and residential applications.

Distribution Transformer (300 kVA): Widely used in distribution systems, a 300 kVA distribution transformer efficiently distributes electricity to end-users within residential, commercial, and industrial areas. It optimizes voltage levels for safe and effective use, supporting the overall reliability of the power grid.

Read my article on: What Is Distribution Transformer?

Three-Phase Transformer (300 kVA): Three-phase transformers, including 300 kVA models, are pivotal in industrial power distribution due to their compact size, lighter weight, and economical transport. They are typically core type transformers, known for durability and low energy losses. Available in delta (triangle) and star (Y) configurations, these transformers efficiently meet the power distribution needs of factories and large commercial establishments.

Try for free: 3 Phase Pad Mounted Transformer

Pole-mounted Transformer (300 kVA): Installed on utility poles, the 300 kVA pole-mounted transformer is designed for outdoor use, particularly in rural areas where space constraints and environmental exposure are factors. It helps in delivering reliable power supply to remote locations while minimizing the risk of damage from human interference or animal contact. Anti-corrosive coatings on its tank ensure longevity despite exposure to harsh weather conditions.

In summary, a 300 kVA transformer is versatile and essential across the power distribution and transmission infrastructure. Whether facilitating voltage transformation, enhancing distribution efficiency, or ensuring reliable power supply in various environments, these transformers play a vital role in supporting industrial operations and meeting the energy needs of communities.

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 Transformer is a transformer manufacturer, that can design and produce various types of 300 kVA 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.