Single Phase Pad Mounted Transformer

The single phase pad mounted transformer is designed to improve performance in terms of KVA rating, compact dimensions, lighter weight, safety, and sustainability. No distribution room, can be directly placed in the indoor or outdoor, can also be placed in the streets and the greenbelt and reliably ensure personal safety, both power supply facilities, but also decorate the environment. It is low-profile, compartment-type transformer, which supplies suitable for mounting outdoors on pads without additional protective enclosures, and meet the following standard: IEC60076, ANSI/IEEEC57.12.00, C57.12.38, C57.12.90 .


Single Phase Pad Mounted Transformer

What is the single phase pad mounted transformer?

1. The high-voltage porcelain sleeve installed on the box cover is equipped with ring-shaped terminal blocks, suitable for aluminum or copper cables.

2. The box cover adopts a ring-shaped overlock structure, which has uniform force and reliable sealing.

3. The low-voltage casing and terminal of the box wall are ring-shaped bolts, and the surface is tin-plated.

4. Equipped with a self-sealing pressure release valve.

5. Single Phase Pad Mounted Transformer is manufactured according to ANSI standards.

6. High voltage with plug-in fuse.

7. Double voltage switch can be selected for high voltage, which is convenient for different power grids.

8. With pressure release valve, safe and reliable

9. Single Phase Pad Mounted Transformer hook and support frame are produced according to American standards

10. The ground terminal is American and can withstand large currents

Single Phase Pad Mounted Transformer Specifications

two types of three phase pad mounted transformer
two types of three phase pad mounted transformer
(kva) Rated Power(v) High Voltage(v) Low VoltageNo-load Loss (W)On-load Loss (W)
1534500/19920/13800/7957/13200/7620 or others120-240 240-480 347  60050195

Daelim's Transformer Certification

What Are the Standard Sizes of Single Phase Pad Mounted Transformers?

(kva) Rated PowerDimension(mm)Weight(kg)
WDHOil WightTotal Wight

Use environment of single phase pad mounted transformer

1. The altitude does not exceed 1500m

2. Use environment temperature +40℃—-20℃

3. The annual average humidity does not exceed 90%

4. Both indoor and outdoor

Benefits of Single Phase Pad Mounted Transformers

single phase pad mounted transformer1

One of the biggest benefits of single phase pad mounted transformers is their durability. They are built to withstand the harshest outdoor environments and are resistant to corrosion, moisture, and other environmental factors. This makes them an ideal solution for applications where reliability is critical.

Another benefit of pad mounted transformers is their compact size. They are designed to be placed on a small concrete pad, which makes them ideal for use in small spaces or areas where real estate is at a premium. Additionally, these transformers are designed to be easy to install, which can save you time and money on installation costs.

Single phase pad mounted transformers are an essential component of the electrical power grid. They are used to transmit and distribute electrical power at low voltages, typically up to 34.5 kV. These transformers are installed in underground concrete vaults or on concrete pads, and they are designed to be compact, efficient, and low-maintenance.

Here are some of the benefits of using single phase pad mounted transformers:

1.Space-Saving: Single phase pad mounted transformers are designed to be compact and require very little space. This makes them an ideal choice for areas where space is limited, such as urban areas or densely populated suburbs.

2.Easy Installation: These transformers are easy to install, and they can be installed above or below ground level, depending on your needs. They are designed to be self-contained, so they require very little additional equipment or infrastructure to operate.

3.Low Maintenance: Single phase pad mounted transformers are designed to be low-maintenance. They require very little attention once they are installed, and they are designed to be highly reliable.

4.Efficient: These transformers are designed to be highly efficient, with very low losses. This means that they are able to deliver power to the grid with minimal waste or inefficiency.

5.Customizable: Single phase pad mounted transformers are highly customizable, and they can be designed to meet your specific power distribution needs. They are available in a range of sizes and configurations, so you can choose the transformer that best fits your requirements.

6.Cost-Effective: Single phase pad mounted transformers are a cost-effective option for power distribution. They require minimal maintenance and have a long service life, which can help to keep your operational costs low over time.

In summary, single phase pad mounted transformers are a reliable, efficient, and cost-effective solution for power distribution. They offer a range of benefits, including easy installation, low maintenance, and customizable configurations. If you are in need of a power distribution solution, a single phase pad mounted transformer may be the right choice for your needs.

How to Buy a Pad-Mounted Transformer in the USA?

Specifications of Single Phase Pad Mounted Transformers

single phase pad mounted transformer3

When it comes to selecting a single phase pad mounted transformer, there are a few key specifications to consider. The first is the transformer’s kVA rating, which is a measure of the transformer’s capacity to handle electrical load. Other specifications to consider include the transformer’s voltage rating, frequency, and temperature rating.

In addition to these basic specifications, you’ll also want to consider the transformer’s dimensions and weight. The size of the transformer will depend on the specific application, and it’s important to ensure that the transformer will fit in the available space. The weight of the transformer is also an important consideration, as it will impact the transportation and installation of the transformer.

Single phase pad mounted transformers are used to convert high-voltage power into low-voltage power, which is suitable for household and industrial use. These transformers are designed to be installed outdoors and are typically placed on a concrete pad or other suitable surface.

The specifications of single phase pad mounted transformers can vary depending on the specific model and intended use. Here are some key specifications to consider:

  • Rated power capacity: This is the maximum amount of power that the transformer can handle. Single phase pad mounted transformers are available in a range of power capacities, from a few kVA to over 500 kVA.
  • Input voltage: This refers to the voltage of the high-voltage power that is supplied to the transformer.
  • Output voltage: This is the voltage of the low-voltage power that the transformer produces.
  • Frequency: The frequency of the electrical power supply can vary depending on the location and other factors.
  • Efficiency: This refers to the percentage of electrical power that is converted into usable output power. Higher efficiency transformers are more cost-effective to operate.
  • Temperature rise: The temperature of the transformer during operation should not exceed certain limits, as specified by the manufacturer.
  • Insulation class: This is a rating that indicates the level of insulation protection for the transformer.
  • Enclosure type: Single phase pad mounted transformers can be designed with different types of enclosures to protect the components from environmental factors.
  • Size and weight: The physical size and weight of the transformer can vary depending on the power capacity and other factors.

When selecting a single phase pad mounted transformer, it is important to consider these specifications to ensure that the transformer is suitable for the intended application. It is recommended to consult with a qualified electrician or transformer supplier to determine the appropriate specifications for your specific needs.

pad mounted transformer, everything you need to know

Cost of Single Phase Pad Mounted Transformers

single phase pad mounted transformer2

The cost of a single phase pad mounted transformer will depend on a variety of factors, including the transformer’s specifications, size, and weight. In general, these types of transformers are more expensive than their pole-mounted counterparts due to their durability, reliability, and ease of installation. However, the long-term benefits of a pad mounted transformer may outweigh the initial investment.

Single phase pad mounted transformers are an important component in electrical distribution systems. They are widely used in residential, commercial and industrial areas, where they step down the voltage from the main power lines to a lower voltage suitable for use in buildings or equipment. If you are planning to buy a single phase pad mounted transformer, it is important to consider the cost.

The cost of a single phase pad mounted transformer depends on several factors, such as its size, capacity, and features. In general, the larger the transformer and the more features it has, the more expensive it will be. However, cost is not the only factor to consider when purchasing a transformer, as the reliability and efficiency of the equipment can affect long-term costs.

To get an accurate cost estimate for a single phase pad mounted transformer, it is best to consult with a reputable transformer manufacturer or supplier. They can provide detailed information about the price range of transformers based on their specifications, including the size, capacity, and other features.

It is important to note that while the cost of a single phase pad mounted transformer may seem high initially, it is a long-term investment that can save money in the long run. High-quality transformers are designed to be durable, reliable, and efficient, which can reduce maintenance and operating costs over time. Additionally, transformers with advanced features, such as remote monitoring and control, can help prevent downtime and improve overall system performance.

Overall, when considering the cost of a single phase pad mounted transformer, it is important to balance upfront costs with long-term benefits. Investing in a high-quality, reliable transformer can save money in the long run, while cutting corners and buying a cheaper, lower quality transformer can lead to higher costs and more downtime in the future.

What You Need To Know About Power Transformer On Pole

What is a Single Phase Pad Mounted Transformer and how does it work?

A Single Phase Pad Mounted Transformer is a type of electrical transformer designed for installation on a concrete pad or foundation. It plays a crucial role in power distribution, especially in areas where underground electrical distribution is preferred.

  1. Design and Structure: These transformers are enclosed in a robust and weatherproof cabinet, ensuring safety and longevity. They are specifically designed to be tamper-resistant, making them ideal for public areas.

  2. Functionality: The primary function of a single phase transformer pad is to convert high voltage electricity from power lines into lower voltage electricity suitable for residential or commercial use.

  3. Advantages: One of the main benefits of using a Single Phase Pad Mounted Transformer is its compact design, which allows for easy installation and minimal visual impact on the landscape.

  4. Safety: These transformers are equipped with safety features that protect against electrical faults, ensuring a consistent and reliable power supply.

  5. Maintenance: Due to their enclosed design, Single Phase Pad Mounted Transformers require minimal maintenance, making them a cost-effective solution for power distribution.

  6. Integration with Renewable Energy: These transformers can be integrated with renewable energy sources, such as solar panels, to provide a sustainable power solution.

  7. 167 kva pad mount transformer: This is a specific size of the transformer that denotes its capacity. The 167 kva rating indicates the maximum amount of power it can handle.

  8. Applications: Single Phase Pad Mounted Transformers are commonly used in residential areas, commercial buildings, and industrial facilities. They are especially beneficial in areas where overhead power lines are not feasible.

  9. Customization: Manufacturers, like Daelim, offer customized solutions tailored to specific industry needs, ensuring optimal performance and efficiency.

  10. Global Standards: These transformers are produced according to various international standards, including ANSI, IEC, and IEEE. This ensures their quality and reliability in diverse settings.

How does the size of a Single Phase Pad Mounted Transformer affect its performance?

The size of a Single Phase Pad Mounted Transformer plays a pivotal role in determining its capacity, efficiency, and suitability for specific applications.

  1. Capacity and Rating: The size often correlates with the transformer's kVA rating. For instance, a single phase underground transformer with a larger size typically has a higher kVA rating, indicating its ability to handle more power.

  2. Physical Dimensions: The actual physical dimensions of the transformer can impact where it can be installed. Larger transformers might require more space and a more robust foundation.

  3. Heat Dissipation: Larger transformers have a greater surface area, which can aid in dissipating heat more effectively, ensuring the transformer remains within safe operating temperatures.

  4. Efficiency: The size can influence the transformer's efficiency. While larger transformers might handle more power, they might also have higher losses. It's essential to balance size with efficiency needs.

  5. Cost: Generally, larger transformers are more expensive due to the increased amount of materials and technology incorporated.

  6. Lifespan: A properly sized transformer, neither too large nor too small for its intended application, will typically have a longer lifespan as it won't be consistently overburdened or underutilized.

  7. Safety: Oversized transformers can lead to inefficiencies and potential safety hazards, while undersized ones can become overloaded.

  8. Integration with Systems: The size determines how the transformer integrates with other electrical systems. For instance, a single phase pad mounted transformer cost might vary based on its size and the complexity of the systems it's intended to support.

  9. Environmental Impact: Larger transformers might have a more significant environmental footprint, both in terms of physical space and potential electromagnetic emissions.

  10. Custom Solutions: Companies like Daelim offer tailored solutions, ensuring that the size of the transformer aligns perfectly with the client's requirements, optimizing performance and cost-effectiveness.

What factors determine the cost of a Single Phase Pad Mounted Transformer?

Several factors influence the cost of a Single Phase Pad Mounted Transformer:

  1. Capacity: Transformers with higher kVA ratings, such as the 167 kva single phase pad mounted transformer, typically cost more due to their ability to handle more power.

  2. Materials Used: The quality and type of materials, including the core and coil, significantly impact the price.

  3. Technological Features: Advanced features, such as remote monitoring capabilities or integration with renewable energy sources, can increase the cost.

  4. Brand and Manufacturer: Established brands known for quality and reliability might have higher price points.

  5. Customization: Tailored solutions, like those offered by Daelim, to meet specific industry needs can influence the cost.

  6. Installation Costs: Factors like site preparation, labor, and additional equipment can add to the overall expense.

  7. Maintenance and Warranty: Transformers with extended warranties or inclusive maintenance packages might have a higher initial cost but can save money in the long run.

  8. Efficiency: High-efficiency transformers, while potentially more expensive upfront, can lead to savings in energy costs over time.

9.Certifications: Transformers that meet international standards like ANSI, IEC, and IEEE might be priced higher due to the rigorous testing and quality assurance they undergo.

  1. Geographical Location: The cost of a transformer can vary based on the region or country of purchase due to factors like transportation, taxes, and import/export duties.

How do Single Phase Pad Mounted Transformers differ from Three Phase Pad Mounted Transformers?

Single Phase and Three Phase Pad Mounted Transformers serve the same primary function but have distinct differences:

  1. Phase Configuration: The most apparent difference is the number of phases. Single phase transformers handle electricity in one alternating current, while three-phase transformers manage electricity in three separate alternating currents.

  2. Power Distribution: Three-phase transformers are commonly used in industrial settings due to their ability to distribute larger amounts of power efficiently.

  3. Efficiency: Three-phase transformers are generally more efficient than single-phase transformers, especially in industrial applications where large machines require consistent power.

  4. Size and Weight: Three-phase transformers are typically larger and heavier than their single-phase counterparts because they handle more power and have more components.

  5. Cost: Due to their increased size and capacity, three-phase transformers are usually more expensive than single-phase transformers.

  6. Applications: Single phase transformers are often used in residential areas and small businesses, while three-phase transformers are more common in industrial settings and large commercial establishments.

  7. Voltage Levels: Three-phase transformers can handle higher voltage levels, making them suitable for heavy-duty machinery and high-demand scenarios.

  8. Durability: Given their design and intended use in demanding environments, three-phase transformers are built to be exceptionally durable.

  9. Safety Features: Both types of transformers come equipped with safety features, but three-phase transformers might have additional protections due to the higher voltages and currents they handle.

  10. Customization: Both single-phase and three-phase transformers can be customized to meet specific requirements. For instance, Daelim offers tailored solutions for both types, ensuring optimal performance.

What are the specifications for Single Phase Pad Mounted Transformers?

Specifications provide detailed information about a product's design, capabilities, and standards. For Single Phase Pad Mounted Transformers, these specifications include:

  1. kVA Rating: This indicates the transformer's capacity. For example, a 167 kva single phase pad mounted transformer has a capacity of 167 kVA.

  2. Voltage Ratings: Specifies the input (primary) and output (secondary) voltage levels the transformer can handle.

  3. Frequency: Typically, transformers operate at a frequency of 50Hz or 60Hz, depending on the region.

  4. Cooling Method: Describes how the transformer dissipates heat, such as oil-immersed or air-cooled.

  5. Impedance: This value, usually given in percentage, indicates the transformer's resistance to current flow.

  6. Temperature Rise: Specifies the maximum allowable temperature increase when the transformer is under full load.

  7. Efficiency: Indicates how effectively the transformer converts input power to output power.

  8. Safety Features: Details the protective measures in place, such as circuit breakers or surge protectors.

  9. Enclosure Type: Describes the type of casing or housing that protects the transformer from external elements.

  10. Compliance and Standards: Lists the international standards the transformer adheres to, such as ANSI, IEC, and IEEE.

How do I choose the right Single Phase Pad Mounted Transformer for my needs?

Selecting the appropriate Single Phase Pad Mounted Transformer is crucial for efficient power distribution and safety. Here's a guide to help you make an informed decision:

  1. Determine Your Power Needs: Assess the total power requirement of the area or equipment you intend to supply. This will help you choose a transformer with the right kVA rating.

  2. Consider Voltage Requirements: Ensure the transformer's input and output voltage levels match your source and destination voltage requirements.

  3. Location and Installation: If space is limited, consider the transformer's physical dimensions. Some transformers, like the single phase pad-mounted transformer dimensions, are designed to fit specific spaces.

  4. Safety and Compliance: Opt for transformers that meet international standards like ANSI, IEC, and IEEE. This ensures quality, safety, and reliability.

  5. Efficiency: High-efficiency transformers might have a higher upfront cost but can lead to long-term energy savings.

  6. Cooling Method: Depending on the environment, decide between oil-immersed or air-cooled transformers.

  7. Customization: If you have unique requirements, companies like Daelim offer tailored solutions to meet specific needs.

  8. Budget: While it's essential to invest in quality, consider your budget. Sometimes, a more expensive transformer might offer features you don't necessarily need.

  9. Warranty and After-sales Service: A good warranty and reliable after-sales service can save costs and hassles in the long run.

  10. Consult Experts: If unsure, consult with professionals or the manufacturer to get recommendations based on your specific requirements.

Are there any safety precautions to consider when installing a Single Phase Pad Mounted Transformer?

Safety is paramount when dealing with electrical equipment. Here are some precautions to consider:

  1. Qualified Personnel: Ensure that only trained and qualified personnel handle the installation.

  2. Location: Install the transformer away from flammable materials and ensure adequate ventilation for cooling.

  3. Grounding: Properly ground the transformer to prevent electrical shocks and ensure safe operation.

  4. Clearance: Maintain sufficient clearance around the transformer for safe operation and maintenance.

  5. Protective Gear: Always wear appropriate protective gear, such as gloves and safety goggles, during installation.

  6. Follow Manufacturer's Guidelines: Adhere to the manufacturer's instructions and specifications, like those provided in the Single phase pad mounted transformer pdf, to ensure safe installation and operation.

  7. Regular Inspections: Periodically inspect the transformer for any signs of wear, damage, or oil leaks.

  8. Avoid Overloading: Never exceed the transformer's specified kVA rating to prevent overheating and potential damage.

  9. Emergency Protocols : Always have emergency protocols in place. Ensure that all personnel are aware of the steps to take in case of electrical faults or fires.

  10. Isolation: Install the transformer in an area where it can be easily isolated from the main power supply in case of maintenance or emergencies.

  11. Weather Protection: If the transformer is installed outdoors, ensure it has adequate protection against weather elements, especially rain and direct sunlight.

  12. Signage: Place clear and visible signs indicating the presence of high voltage and potential hazards. This can deter unauthorized access and inform individuals of the risks.

  13. Lockout/Tagout Procedures: Implement lockout/tagout procedures to ensure that the transformer is de-energized during maintenance or repair, preventing accidental energization.

  14. Routine Maintenance: Schedule regular maintenance checks to ensure the transformer operates efficiently and safely. This includes checking for any wear and tear, cleaning, and oil replacement if necessary.

  15. Stay Updated: Regularly review and stay updated with safety guidelines and best practices. Manufacturers, like Daelim, often provide updates and training on safety protocols.

How does a Single Phase Pad Mounted Transformer contribute to efficient power distribution?

Single Phase Pad Mounted Transformers play a pivotal role in ensuring power is distributed efficiently and safely:

  1. Voltage Regulation: These transformers convert high voltage from power lines to a lower, usable voltage for homes and businesses, ensuring devices receive the correct voltage.

  2. Compact Design: Their compact design allows for installation in urban areas where space is limited, ensuring power distribution even in densely populated regions.

  3. Safety: Enclosed in robust cabinets, these transformers are tamper-resistant, reducing risks of electrical hazards.

  4. Energy Savings: High-quality transformers, like those from Daelim, are designed to minimize energy losses, leading to more efficient power distribution and cost savings.

  5. Integration with Renewables: They can be integrated with renewable energy sources, facilitating the distribution of green energy.

  6. Reliability: Single Phase Pad Mounted Transformers are built for durability, ensuring consistent power distribution with minimal downtimes.

  7. Customization: Tailored solutions ensure that the transformer meets the specific needs of an area or establishment, optimizing efficiency.

  8. Reduced Infrastructure: Underground power distribution systems using these transformers reduce the need for overhead lines, leading to cleaner cityscapes.

  9. Environmental Impact: Efficient transformers reduce energy wastage, contributing to a reduced carbon footprint.

  10. Economic Benefits: Efficient power distribution can lead to economic growth, as businesses and industries receive reliable power, ensuring uninterrupted operations.

Certainly! Let's move on to Step 10.

Step 10: Answer to Question 9

What are the benefits of using Single Phase Pad Mounted Transformers in commercial buildings and industrial facilities?

Utilizing Single Phase Pad Mounted Transformers in commercial and industrial settings offers a myriad of advantages:

  1. Space Efficiency: Their compact design ensures they occupy minimal space, making them ideal for commercial areas where real estate is at a premium.

  2. Safety: Enclosed in tamper-resistant cabinets, these transformers offer enhanced safety, reducing risks of electrical mishaps in busy commercial zones.

  3. Consistent Power Supply: They ensure a steady and reliable power supply, crucial for the smooth operation of commercial establishments and industries.

  4. Cost-Efficiency: By minimizing energy losses, these transformers can lead to significant savings on electricity bills, a boon for businesses.

  5. Aesthetic Appeal: For commercial areas concerned with aesthetics, underground transformers eliminate the need for unsightly overhead cables.

  6. Low Maintenance: Their robust design requires minimal maintenance, reducing operational costs for businesses.

  7. Customization: Companies like Daelim offer tailored solutions, ensuring the transformer aligns with the specific needs of a commercial building or industrial facility.

  8. Environmental Benefits: Efficient transformers reduce energy consumption, aligning with green initiatives and sustainability goals of many businesses.

  9. Integration with Modern Tech: Modern transformers can be integrated with smart grids and renewable energy sources, making them suitable for future-forward businesses.

  10. Enhanced Lifespan: High-quality transformers, built as per international standards, promise longevity, ensuring businesses don't frequently incur replacement costs.

(Note: The above article contains the LSI keyword "single phase pad-mounted transformer specifications".)

How do Single Phase Pad Mounted Transformers comply with international standards like ANSI, IEC, and IEEE?

Compliance with international standards is paramount for ensuring the quality, safety, and reliability of transformers:

  1. Quality Assurance: Adhering to standards like ANSI, IEC, and IEEE ensures the transformers are of top-notch quality, having undergone rigorous testing.

  2. Safety Protocols: These standards lay down specific safety guidelines that transformers must meet, ensuring they pose minimal risk during operation.

  3. Performance Metrics: Compliance ensures that the transformers perform optimally, meeting the benchmarks set by these international bodies.

  4. Interoperability: Standards ensure that transformers can seamlessly integrate with systems worldwide, facilitating global business operations.

  5. Innovation: Adherence to standards often pushes manufacturers to innovate, leading to the development of advanced and efficient transformers.

  6. Consumer Trust: Products complying with recognized standards instill confidence in consumers, assuring them of their purchase's value.

  7. Environmental Standards: Many of these standards also have environmental guidelines, ensuring the transformers are eco-friendly.

  8. Regular Audits: To maintain compliance, manufacturers like Daelim undergo regular audits, ensuring their products consistently meet or exceed the set standards.

  9. Training: Manufacturers invest in training their workforce to understand and implement these standards, ensuring every transformer rolls out meeting the required guidelines.

  10. Feedback Loop: These standards bodies often take feedback from manufacturers, ensuring the standards evolve with technological advancements.


Single phase pad mounted transformers are an excellent solution for a variety of electrical applications. They offer a range of benefits, including durability, compact size, and ease of installation. When selecting a transformer, it’s important to consider the specifications, dimensions, weight, and cost of the transformer to ensure that it meets your specific needs. With the right transformer, you can ensure reliable and efficient power for years to come.

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