Everything You Need To Know With 250 kVA Transformer
An electrical transformer is a passive device that transfers electrical energy from one circuit to another through electromagnetic induction. The primary goal of a transformer is to change the voltage level of an alternating current (AC) power supply, making it possible to transmit electrical power over long distances. We will discuss the 250 kVA transformer now.
Daelim is UL/cUL transformer manufacturer who has been a product with ANSI/IEEE, CSA, AS/NZS, GOST, and EN standards. The 250 kVA Transformer produced by Daelim can fully meet the DOE efficiency value. Daelim’s 250kVA three-phase transformers and single-phase transformers have been exported to the United States, Canada, Australia, Guyana, Mexico, Panama, and other countries.
What is a 250 kVA transformer?
A 250 kVA transformer is an electrical device capable of transforming electrical energy from one circuit to another with a maximum power rating of 250 kilovolt-amperes (kVA). This means the transformer is designed to handle a maximum of 250,000 volt-amperes (VA) of electrical power.
The transformer's voltage level and current capacity can be adjusted by changing the number of turns in the primary and secondary coils, making it possible to match the voltage level of the input voltage source to the voltage requirements of the load. 250 kVA transformers are commonly used in industrial and commercial electrical systems to distribute and transform electrical power.
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250kVA transformer types
There are several types of 250 kVA transformers, including:
Step up transformers
These transformers increase the input voltage level, making it possible to transmit electrical power over long distances with minimal energy loss.
Step down transformers
These transformers decrease the input voltage level, making it safe for electrical devices to use electrical power.
Isolation transformers
These transformers provide electrical isolation between two circuits, preventing electrical shock and other hazards. They are commonly used in medical equipment and other safety-critical applications.
Autotransformers
These transformers are a type of transformer that share a common winding between the primary and secondary coils. They are less complex and more cost-effective than other types of transformers, but they offer less isolation between the input and output circuits.
Three-phase transformers
These transformers are designed to handle three-phase AC power supplies, which are commonly used in industrial and commercial electrical systems. They offer higher power capacity and improved reliability compared to single-phase transformers.
The choice of transformer type depends on the specific requirements of the application, including the voltage level of the input voltage, the voltage requirements of the load, and the need for electrical isolation. 250 kVA transformers are commonly used in a wide range of applications, including power grids, electrical equipment, and commercial and industrial buildings.
Read more: Different Transformer Types and Their Applications
What is the current rating of 250 kVA transformers?
In general, the current rating of a 250 kVA transformer is directly proportional to the voltage level of the input voltage and inversely proportional to the voltage level of the output voltage.
For example, if the input voltage is 11 kV and the output voltage is 440 V, the current rating can be calculated as follows:
Current (A) = 250,000 VA / 11 kV = 22,727 A
The actual current rating of a 250 kVA transformer may vary depending on the specific design and manufacturer, so it is important to consult the datasheet or technical specifications to determine the exact current rating. Additionally, the current rating may be limited by the size and capacity of the internal components, such as the wire size, core size, and cooling system.
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250 kVA transformer load capacity
The load capacity of a 250 kVA transformer refers to the maximum amount of electrical power that the transformer can safely handle without overheating or sustaining damage.
The load capacity is typically expressed in kilovolt-amperes (kVA) and depends on several factors, including the voltage level of the input voltage, the voltage level of the output voltage, the current rating, and the efficiency of the transformer.
In general, the load capacity of a 250 kVA transformer is equal to its power rating. However, the actual load capacity may be lower than the power rating depending on the specific application and operating conditions.
Factors such as the ambient temperature, the frequency of the electrical power, and the length of the cable runs can all affect the load capacity of a transformer.
It is important to note that the load capacity of a transformer should not be exceeded, as this can cause the transformer to overheat and sustain damage, or even fail. Overloading a transformer can also result in a decrease in efficiency and an increase in energy losses.
To ensure safe and efficient operation, it is important to carefully select the right transformer for the application and to monitor the load capacity during operation.
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250kVA transformer price
The price of a 250kVA transformer can vary widely depending on several factors, including the type of transformer, the manufacturer, the location, and the specific requirements of the application. Some of the factors that can influence the price of a 250 kVA transformer are:
- Type of transformer: The price of different types of transformers, such as step-up, step-down, isolation, and autotransformers, can vary depending on the complexity of the design and the components used.
- Manufacturer: The price of a transformer can vary depending on the manufacturer and the level of quality and reliability of the product.
- Location: The price of a 250kVA transformer can be influenced by the location and the availability of the product in the region.
- Customization: The price of a transformer can increase if the customer requires custom specifications or modifications to meet their specific requirements.
As a rough estimate, a 250kVA transformer can cost anywhere from several thousand to tens of thousands of dollars, depending on the factors mentioned above. The exact price of a 250kVA transformer can be obtained by contacting the manufacturer or a distributor.
It is important to carefully evaluate the specific requirements of the application and to compare the prices of different manufacturers to ensure that the most cost-effective and suitable transformer is selected.
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How much does a 250kVA transformer weigh?
The weight of a 250kVA transformer can vary widely depending on the type of transformer, the design, and the materials used. Some of the factors that can influence the weight of a 250kVA transformer are:
- Type of transformer: The weight of different types of transformers, such as step-up, step-down, isolation, and autotransformers, can vary depending on the complexity of the design and the components used.
- Core material: The weight of a transformer can be influenced by the type of core material used, such as laminated iron or amorphous metal.
- Winding material: The weight of a transformer can be influenced by the type of winding material used, such as copper or aluminum.
- Cooling system: The weight of a transformer can be influenced by the type and size of the cooling system, such as air cooling or oil cooling.
As a rough estimate, a 250 kVA transformer can weigh anywhere from several hundred to several thousand pounds, depending on the factors mentioned above. The exact weight of a 250 kVA transformer can be obtained by consulting the datasheet or technical specifications provided by the manufacturer. It is important to consider the weight of the transformer when selecting a location for installation, as a heavy transformer may require specialized lifting equipment and support structures.
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250 kVA pole mounted transformer
A 250 kVA pole-mounted transformer is a type of electrical transformer that is mounted on a pole, typically made of metal or concrete, and used to step-up or step-down the voltage of electrical power.
This type of transformer is commonly used in distribution systems to provide electrical power to remote areas or to serve as a connection point between different parts of the electrical grid.
A 250 kVA pole-mounted transformer typically consists of a metal core and windings, an oil or air cooling system, and an enclosure to protect the internal components from the environment. The transformer is mounted on a pole, typically several meters above the ground, and is connected to the electrical grid through high-voltage power lines.
Pole-mounted transformers are designed to withstand extreme weather conditions and are often used in rural or remote areas where underground cable systems are not feasible. They offer several advantages over other types of transformers, such as:
- Easy installation: Pole-mounted transformers can be installed quickly and easily without excavation or underground installations.
- Cost-effective: Pole-mounted transformers are typically less expensive than other types of transformers, as they do not require expensive excavation or underground installations.
- High voltage: Pole-mounted transformers can support high-voltage power lines, allowing them to provide electrical power to remote areas over long distances.
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250 kVA pad mounted transformer
A 250 kVA pad-mounted transformer is a type of electrical transformer that is mounted on a concrete pad or base and used to step up or step down the voltage of electrical power.
This type of transformer is commonly used in distribution systems to provide electrical power to residential and commercial areas or to serve as a connection point between different parts of the electrical grid.
A 250 kVA pad-mounted transformer typically consists of a metal core and windings, an oil or air cooling system, and an enclosure to protect the internal components from the environment. The transformer is mounted on a concrete pad, typically close to ground level, and is connected to the electrical grid through high-voltage power lines.
Pad-mounted transformers offer several advantages over other types of transformers, such as:
- Easy access: Pad-mounted transformers are easily accessible for maintenance and repair, which can reduce the cost of maintaining the electrical system.
- Low profile: Pad-mounted transformers are typically low profile, which makes them suitable for residential and commercial areas where aesthetics are important.
- Reliability: Pad-mounted transformers are designed to withstand extreme weather conditions and are typically highly reliable.
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How many amps is a 250kVA transformer?
The exact current rating of a 250kVA transformer depends on the voltage rating and the type of the transformer (e.g. step-up, step-down). The current rating is calculated using the formula:
Current (Amps) = Apparent Power (VA) / Voltage (Volts)
For example, if the voltage rating of the transformer is 480V on the primary side and 208V on the secondary side, the current rating would be:
Primary Side: 250,000 VA / 480 V = 520 Amps
Secondary Side: 250,000 VA / 208 V = 1,196 Amps
It is important to note that these are rough estimates, and the actual current rating may vary depending on the specific design and construction of the transformer.
How big is a 250 kVA transformer?
The size of a 250 kVA transformer can vary depending on the type of transformer, the voltage rating, and the cooling method. However, it is generally a large and heavy piece of equipment, with dimensions ranging from approximately 2 meters in height, 1 meter in width, and 1 meter in depth, to over 3 meters in height, 2 meters in width, and 2 meters in depth. The exact dimensions and weight of a 250 kVA transformer will depend on the specific design and construction and can range from several hundred kilograms to over a tonne.
It is important to note that a 250 kVA transformer requires a large amount of space for installation, as well as sufficient access for maintenance and repair. When selecting a transformer, it is important to consider not only the dimensions of the equipment but also the available space and access at the installation site.
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How much oil is in a 250 kVA transformer?
The amount of oil in a 250 kVA transformer depends on several factors, including the type of transformer, the voltage rating, and the cooling method.
For oil-immersed transformers, the oil level is typically between 1/3 to 2/3 of the tank capacity and serves both as a cooling and insulating medium. The exact volume of oil required for a 250 kVA transformer can range from several hundred liters to several thousand liters, depending on the specific design and construction.
It is important to note that the amount of oil in a transformer is an important factor in determining the weight and size of the equipment, as well as the safety and environmental considerations. When selecting a transformer, it is important to consider not only the volume of oil required but also the specific requirements for oil disposal and maintenance.
Why should you buy Daelim 250kVA Transformer?
Daelim 250 kVA Transformer is a high-quality product. It can save up to 20% on energy costs. The transformer is highly durable and will last for many years. Low breakdown rate, meaning that it has been designed not to break down easily. It is environmentally friendly and safe since it doesn't have any chemicals that can harm the environment. The Daelim 250kVA Transformer uses up less space than other transformers in the market since its design allows for easy transportation and storage.
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