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1000 kva transformer

The Complete Guide to 1000kVA Transformer

In this article, you will be learning more about the 1000kVA Transformers, its specification, and its dimensions. Generally, it transfers electrical power from one circuit to another by electromagnetic induction. 

It’s used in nearly every industry, and it can be found in homes, offices, factories, and especially for a bitcoin mining power system. 

And we at Daelim know how important it is for your business to have the right equipment. 

Our transformers are more high-quality compared to other models on the market today. 

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Single Phase Transformer
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Table of Contents

What is a 1000 kVA transformer?

A 1000 kVA transformer is an electrical device used to transfer energy between two or more circuits through electromagnetic induction. The "kVA" stands for kilovolt-amperes, which is a unit that measures the transformer's apparent power capacity. In simple terms, a 1000 kVA transformer can handle up to 1000 kilovolt-amperes of electrical load.

Applications of a 1000 kVA Transformer:

  1. Industrial Settings: These transformers are commonly used in industrial applications due to their high power capacity. They can be used to power large machinery, manufacturing plants, and other heavy-duty electrical equipment.

  2. Commercial Buildings: Large commercial buildings such as shopping malls, office complexes, and hotels often require transformers of this capacity to distribute electrical power efficiently across the entire building.

  3. Utility Substations: In electrical distribution systems, 1000 kVA transformers are used in substations to step-down high voltage from transmission lines to a lower voltage suitable for commercial or residential use.

  4. Hospitals and Large Institutions: These establishments require a constant and reliable power supply for critical operations. A 1000 kVA transformer can ensure the steady distribution of electricity to support medical equipment, lighting, air conditioning, and other essential services.

  5. Renewable Energy Systems: In the context of renewable energy, such as solar or wind power generation, these transformers are used to step-up the generated power to a suitable level for feeding into the electrical grid.

  6. Data Centers: Data centers, which require a significant amount of power for servers and cooling systems, often use transformers of this capacity to manage their large power requirements.

  7. Educational and Research Facilities: Large universities and research institutes with extensive campus networks and high power-consuming equipment might need a 1000 kVA transformer for efficient power distribution.

  8. Event and Entertainment Venues: Large venues hosting events or entertainment shows with high power requirements for lighting, sound systems, and other equipment would typically use such transformers.

In summary, the 1000 kVA transformer is crucial in scenarios requiring substantial power distribution, offering the capacity to support various large-scale commercial, industrial, and institutional applications.

How Does A 1000kVA Transformer Work?

A 1000kVA transformer generally works the same as every other transformer does.

But different types of transformers vary in how they alternate current, and each has its pros and cons.

This transformer’s main factor is to step voltage up or down from the primary to the secondary windings.

Additionally, it is designed to convert alternating electrical current (AC) from one voltage to another.

Voltage step-up or down is achieved simply by adjusting the ratio of coils on one side to the other.

When voltage is introduced to the primary, it magnetizes the iron core.

A voltage is then induced in the secondary or output coil.

The change of voltage (or voltage ratio) between the primary and secondary depends on the turns ratio of the two coils.

If a transformer has 5 coils on the primary and 10 on the secondary, it will be a 1:2 step-up transformer.

A 1:2 step-up transformer means the voltage is doubled from the primary to the secondary.

If it has 10 coils on the primary and 5 coils on the secondary, it would be the opposite, a 2:1 step-down transformer, cutting the voltage in half.

What Are The Phase Types Of 1000kVA Transformer?

When it comes to phase types, there are 2 categories.

There are single-phase types and three-phase types.

And their differences are discussed below.

Single-Phase Design

Single-phase transformers commonly output and process AC power at a higher or lower voltage, which transfers energy from one circuit to one other circuit, or maybe more, through a process called electromagnetic induction.

A single-phase transformer makes use of a single-phase AC, which means the transformer depends on a voltage cycle that works in an integrated time phase.

These transformers often step down localized and long-distance transmission currents to suit residential and light commercial use.

The change in current is determined by the ratio of the primary windings to the secondary windings.

Single-phase transformers are more in-demand than three-phase in provincial areas because of their lower overall electrical demand.

Utility infrastructure and industrial regulations regulate the highest voltage on the market for a network or single-phase types.

When single-phase types are used on appliances, such as a refrigerator or computer, the lower voltage output is often sorted into direct current (DC) before powering these appliances.

1000 kVA single phase transformer

Three-Phase Design

On the other hand, a three-phase distribution network costs much higher and supplies power to three-phase electrical systems.

These devices are manufactured with three circuit conductors and possibly have a neutral wire.

Electric power distribution grids use three-phase type transformers to power large motors and other large loads.

Like other transformers, three-phase types are used to increase or decrease the voltage from either side of the transformer.

Variable transformers are three-phase systems that allow the user to set the desired turn ratio.

Step-up transformers can produce a secondary voltage larger than the primary voltage, while step-down transformers have a secondary voltage smaller than the primary voltage.

A three-phase circuit provides greater and efficient power density than a one-phase circuit at similar amperage while maintaining wiring size and costs lower.

In addition, three-phase power makes it more manageable to balance loads, minimize harmonic currents, and the need for large neutral wires.

What Are The 1000kVA Pad-mounted Transformer Specifications?

1000kVA Transformer Technical Specification

 

Rated Power (KVA)

 

High Voltage (KV)

 

Low Voltage (V)

Loss (W)

No-load Loss (W)

On-load Loss (W)

1000KVA

7.2KV – 79.57KV/

240V – 600Y/

1150

10300

Pad-mount transformers come in different designs. And its low-voltage winding complements the customer demand and can come in three-phase or single-phase designs.

Most pad-mount transformers are commonly oil-filled units and only be mounted outdoors.

The core and coils of these transformers are sealed in a steel tank filled with oil and include terminals for accessibility in a secure and adjacent wiring cabinet.

ANd to add to that, the wiring cabinet includes both high and low-voltage wiring compartments.

These voltages go in underground cables and pass below the terminal compartment.

In addition to those features, the wiring cabinet has sidewall doors that open sideways to reveal the wiring compartments.

1000kVA transformer specification includes fuses made of a bayonet mount fuse in a compartment with high voltage to protect itself. A high-energy backup fuse limits the electrical current in series to protect against secondary faults and overload.

The specifications of a 1000 kVA transformer can vary depending on the design, manufacturer, and intended application. However, I can provide typical specifications for a general understanding:

Voltage Ratings:

  1. Primary Voltage: This is the input voltage to the transformer. Common primary voltages for a 1000 kVA transformer can range from 11,000 volts (11 kV) to 33,000 volts (33 kV) in many industrial and commercial applications.

  2. Secondary Voltage: This is the output voltage from the transformer. Typical secondary voltages could be 400/230 volts for distribution in commercial or industrial settings. However, this can vary based on the specific requirements of the electrical system it’s serving.

Current Ratings:

  1. Primary Current: This can be calculated using the formula: Current (Amps) = Power (VA) / Voltage (Volts). For a 1000 kVA transformer with a primary voltage of, say, 11 kV, the primary current would be approximately 52.3 Amps (1000 kVA = 1,000,000 VA, so 1,000,000 / 11,000 = 90.9 Amps).

  2. Secondary Current: Similarly, for a secondary voltage of 400 volts, the secondary current would be 2500 Amps (1,000,000 / 400 = 2500 Amps).

Dimensions:

The physical dimensions of a 1000 kVA transformer can vary significantly based on its design (e.g., oil-filled vs. dry-type), cooling requirements, and other construction features. Typically, a transformer of this size could have dimensions in the range of:

  • Length: 2 to 3 meters
  • Width: 1 to 2 meters
  • Height: 1 to 2 meters

Weight:

The weight of a 1000 kVA transformer is influenced by its construction materials (such as the core and windings), the type of insulation (oil or dry-type), and additional components like cooling systems. An oil-filled transformer might weigh between 3,000 to 5,000 kilograms, whereas a dry-type transformer could be somewhat lighter.

These specifications are indicative and can differ based on the transformer’s specific design and application. For exact specifications, it’s always best to consult the data sheet provided by the manufacturer.

Daelim Pad-Mounted transformer manufacturer
Daelim Pad-Mounted transformer manufacturer

1000kVA Transformer Difference From Other Types

Generally, single-phase and three-phase pad-mounted transformers are commonly used in underground industrial and residential power distribution, which call for safety, durability, and pleasing aesthetics.

Their enclosed build makes installing a pad-mounted transformer in public areas easier without needing protective fencing.

Pad-mount transformers are usually located on street easements and supply multiple households in residential areas.

While most typical pad-mount transformers are affixed to a concrete pad, small single-phase transformers already mounted on a base become available nowadays, making them ready for use right out away.

What Are The 1000kVA Pad-mounted Transformer Dimensions?

High-voltage winding: 95 kv.

Low-voltage winding: 30 kv.

Impedance: 5.83 %.

Electrical requirements: 60 Hz, 3 phase.

Overall 1000kVA transformer dimensions: 74 inches L x 73 inches W x 55 inches H

What Does A 1000kVA Toroidal Transformer Mean?

A toroidal transformer has a torus or donut-shaped core.

Its primary and secondary windings wind across the entire core surface divided by insulation, minimizing the magnetic flux leakage.

Toroidal transformers go best with insensitive and critical electronic circuits because of several advantages over traditional square and rectangular-shaped transformers.

They are likely seen in power supply systems, audio systems, control equipment, power inverters, and other electronic devices.

What Is A Transformer's Role In Crypto Mining?

The primary component in your crypto mine will be the transformer for the mining power supply. 

This transformer is commonly provided by the utility company but can be provided by the client. 

They take the average voltage from a substation and convert it to low-voltage power miners.

Transformers for bitcoin mines are best deployed in 1000kVA, 2000kVA, or 5000kVA increments.

And transformers larger than this can create additional costs in the facilities switchgear and breaker panels.

It is usually cheaper to buy many 1000kVA or 2000kVA breaker panels than to manufacture a very large one.

How Much Does A 1000 kVA Transformer Weigh?

The weight of a transformer can vary depending on the manufacturer, especially regarding the materials used to construct it.

But the average weight is 3,200 kilograms.

How Many Amps Is A 1000 kVA Transformer?

In a 1000 kVA transformer, the amperage equivalent is 2624.32.

Do note that the computations for different phases of transformers are not the same.

Which Transformer Is Used In Home?

The most common transformer type in distribution networks is a step-down transformer, which converts the high grid voltage to low-voltage that Companies can use for home appliances.

Types of 1000 kVA Transformers

1000 kVA transformers come in various types, each suited to specific applications and environments. Here's a brief overview of the three types you mentioned:

1. Dry-Type 1000 kVA Transformers:

  • Construction: These transformers do not use a liquid like oil for cooling. Instead, they are air-cooled and often use materials like resin for insulation.
  • Applications: Ideal for indoor applications due to their lack of flammable liquid. Commonly used in commercial buildings, hospitals, schools, and other areas where fire safety is a significant concern.
  • Advantages: Lower risk of fire and environmental contamination, no requirement for a catch basin for oil leaks, and generally safer in populated or sensitive areas.
  • Maintenance: Requires less maintenance compared to oil-filled transformers, as there are no concerns about oil levels, leaks, or contamination.
  • Size and Weight: Tend to be larger and heavier for the same capacity compared to oil-filled transformers due to less efficient cooling.

2. Oil-Filled 1000 kVA Transformers:

  • Construction: These transformers use oil, typically mineral oil, for insulation and cooling. The oil circulates inside the transformer, absorbing heat from the core and coils.
  • Applications: Widely used in outdoor settings like power distribution networks, industrial plants, and areas where the risk of fire is manageable.
  • Advantages: More efficient cooling, allowing for a smaller and more compact design. They also have a higher overload capacity.
  • Maintenance: Requires regular monitoring and maintenance to check for oil leaks, oil quality, and potential contamination.

3. Pad-Mounted 1000 kVA Transformers:

  • Construction: These are a type of oil-filled transformers that are mounted on a concrete pad and are usually enclosed in a locked metal cabinet. They are designed for outdoor installation.
  • Applications: Commonly used in suburban, residential, and commercial areas for underground power distribution. They are well-suited for areas where space is limited.
  • Advantages: Secure and tamper-proof, aesthetically pleasing as they can be painted and designed to blend with the environment, and easily accessible for maintenance.
  • Safety Features: Often equipped with tamper-resistant features and are designed to be safe for public interaction.

Each type of transformer has its own set of characteristics, benefits, and recommended applications. The choice between dry-type, oil-filled, and pad-mounted transformers depends on various factors including installation environment, space availability, cooling requirements, and safety considerations.

Applications of 1000 kVA Transformers

1000 kVA transformers play a crucial role in various sectors, primarily due to their capacity to handle substantial power requirements. Here are some specific applications in power distribution, industrial, and commercial domains:

1. Power Distribution:

  • Step-down or Step-up Voltage: In power grids, these transformers are often used to step-down the high-voltage electricity from transmission lines to lower voltages suitable for commercial and residential use. Conversely, they can step-up voltage from generation points for efficient transmission.
  • Substations: They are integral in substations, acting as nodes where voltage levels are adjusted for different parts of the grid.
  • Rural and Urban Electricity Distribution: Essential in both urban and rural settings for distributing electricity to various consumers while maintaining the desired voltage levels and minimizing losses.

2. Industrial Applications:

  • Manufacturing Plants: In environments where heavy machinery and equipment are used, such as automotive, steel, or textile manufacturing plants, 1000 kVA transformers provide the necessary power for large motors and machinery.
  • Process Industries: Industries like chemical, pharmaceutical, and food processing which require substantial and reliable power for heating, cooling, and running various process equipment.
  • Oil and Gas Sector: Used in refineries and processing plants for powering equipment involved in extraction, processing, and transportation of oil and gas.

3. Commercial Applications:

  • Large Commercial Complexes: In shopping malls, office buildings, and business centers, these transformers support lighting, HVAC systems, elevators, and other electrical needs.
  • Hospitals and Healthcare Facilities: Critical in hospitals for powering medical equipment, HVAC systems, lighting, and other essential services, ensuring uninterrupted power supply which is crucial in healthcare.
  • Educational Institutions and Campuses: Universities and large educational campuses with significant electricity demands for classrooms, laboratories, dormitories, and administrative buildings.
  • Data Centers: Powering servers, cooling systems, and backup systems in data centers which require a continuous and reliable power supply.
  • Hotels and Entertainment Venues: Ensuring efficient power distribution for various amenities like lighting, heating, air conditioning, and entertainment equipment.

In each of these applications, the transformer’s role is to ensure the safe, efficient, and reliable distribution of electricity at the required voltage levels, contributing significantly to the operational efficiency and safety of these systems.

Pricing of 1000 kVA Transformers

The pricing of 1000 kVA transformers is influenced by several factors, and it can vary widely based on these considerations. Here's an overview of the key factors affecting the price, followed by a general comparison:

Factors Affecting the Price of a 1000 kVA Transformer:

  1. Type of Transformer: Dry-type transformers are generally more expensive than oil-filled transformers due to the materials and construction techniques used.

  2. Cooling Method: Transformers with advanced cooling systems (e.g., forced air or water cooling) will be more expensive than those with natural or oil-immersed cooling.

  3. Materials Used: The quality of materials like the core, winding wires (copper is more expensive than aluminum), insulation materials, and the housing can significantly impact the cost.

  4. Voltage Ratings and Taps: Higher voltage ratings or the inclusion of multiple taps for voltage adjustment can increase the complexity and price.

  5. Energy Efficiency: High-efficiency transformers, which reduce energy losses, may have a higher initial cost but can lead to savings in operational costs.

  6. Customizations and Add-ons: Additional features such as surge protection, noise reduction measures, specific enclosure types, or custom dimensions can add to the cost.

  7. Brand and Quality: Established brands with a reputation for quality and reliability might charge more compared to newer or less-known manufacturers.

  8. Certifications and Standards Compliance: Transformers that meet specific industry standards or certifications (like IEEE, IEC, ANSI) may command a higher price.

  9. Market Factors: Raw material costs, labor costs, transportation fees, and demand-supply dynamics in the market also play a role in pricing.

1000 kVA Transformer Price Comparison:

  • Oil-Filled vs. Dry-Type: Generally, oil-filled transformers are less expensive than dry-type transformers. For a 1000 kVA capacity, the price difference can be significant, sometimes ranging from 10% to 30% more for a dry-type.

  • Standard vs. High-Efficiency Models: High-efficiency transformers can be more expensive by 15% to 25% compared to standard models, though this varies by manufacturer.

  • Brand and Manufacturing Origin: Prices can vary based on the brand reputation and manufacturing origin. For example, transformers made in countries with higher manufacturing costs may be more expensive.

  • Market Conditions: Depending on the current market conditions, such as fluctuations in raw material prices or changes in demand, prices can vary over time.

It's important to note that these are general trends and actual prices can vary based on specific requirements, vendor, and geographic location. For accurate pricing, it's recommended to get quotes from multiple manufacturers or suppliers. Additionally, while considering the price, it's crucial to also consider the total cost of ownership, which includes installation, maintenance, and operating costs over the transformer's lifespan.

Where to Buy 1000 kVA Transformers in American?

Purchasing a 1000 kVA transformer in the United States can be done through various channels, each offering different benefits. Here are some options to consider:

1. Online Retailers:

  • Global Marketplaces: Websites like Alibaba or Amazon Business often list large industrial equipment, including transformers. They provide a platform for various manufacturers, including international options, to offer their products.
  • Specialized Industrial Equipment Websites: There are websites dedicated to electrical and industrial equipment that may list transformers of this size. These sites often provide detailed specifications and the ability to request custom features.
  • Advantages: Convenient browsing and comparison of different brands and models; often competitive pricing due to a wider range of suppliers.

2. Manufacturer Representatives:

  • Direct Manufacturer Sales: Contacting manufacturers directly, such as GE, Siemens, Eaton, or ABB, is a good way to purchase transformers. They often have sales representatives or offices in the United States.
  • Authorized Dealers: Manufacturers often have authorized dealers or sales agents in various regions. These dealers can provide localized sales support and after-sales services.
  • Advantages: Expert advice and support from the manufacturer; possibility of customization; assurance of quality and compliance with standards.

3. Local Electrical Distributors:

  • Electrical Supply Stores: Large electrical supply companies, such as Graybar, WESCO, or Rexel, stock a range of electrical equipment, including transformers.
  • Regional Distributors: Smaller, region-specific distributors can also provide personalized services and may have 1000 kVA transformers available or can order them for you.
  • Advantages: Personalized service; opportunity to establish a long-term supplier relationship for future needs; local support for logistics and installation.

Tips for Purchasing:

  • Research and Compare: Investigate various suppliers to compare prices, warranties, and service agreements.
  • Check Reviews and References: Especially when buying online, check customer reviews, and ask for customer references from the supplier.
  • Consider Lead Times: Custom or special order transformers can have significant lead times. Ensure the timeline fits your project schedule.
  • Inquire about After-Sales Support: Check the availability of after-sales support, including installation, maintenance, and repair services.
  • Verify Compliance with Standards: Ensure the transformer meets relevant American standards (like ANSI, IEEE) and any specific industry regulations applicable to your use case.

Remember, a 1000 kVA transformer is a significant investment, so it's crucial to consider the supplier's reliability, product quality, and the total cost of ownership, including installation, maintenance, and energy efficiency.

Conclusion

If you want to use a transformer for your mining power supply or any other reason, it would be best to know which type suits your needs. You may also want to consider consulting professionals here at DAELIM BELEFIC Tech Co.

We have been designing, engineering, and manufacturing high-quality electrical equipment for more than 15 years. But it would help if you also considered the pros and cons before making a final decision.

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