ELECTRIC, WITH AN EDGE

2000 kva Transformer

2000 kVA Transformer: A Comprehensive Guide

A 2000 kVA (kilo-Volt-Ampere) transformer is a critical component in electrical power distribution systems. These transformers are designed to handle a high capacity of electrical energy, specifically 2000 kilo-volt-amperes. In essence, a transformer of this capacity functions to modify electrical voltage and current levels, adapting them to the needs of the system it serves. The “kVA” rating indicates the transformer’s apparent power handling capability, encompassing both real and reactive power.

In power distribution systems, 2000 kVA transformers play a pivotal role. They are often employed in medium to large-scale industrial, commercial, and utility applications. These transformers can step down high transmission voltages to lower levels suitable for commercial or industrial use, or vice versa, ensuring efficient transmission and minimizing power loss.

Core Products and Services

Pofessional Manufacturer of Pad Mounted Transformer Substation Transformer,HV Power Transformer Single Phase Transformer IEEE/ANSI,CSA,DOE,AS/NZS,IEC and etc。standards

Substation-Transformer
Single-Phase-Pad-Mounted-Transformer
Single Phase Transformer
Pad Mounted Transformer
dry type transformer
Distribution Transformer
220kv Power Transformer
69kv Power Transformer

Adherence to Standards

Single Phase Transformer CESI

UL

CUL

ISO

CSA

SGS

Table of Contents

What is a 2000kvA oil immersed transformer?

2000kva oil-immersed transformer consists of iron core, low voltage coil, high voltage coil, body insulation, high and low voltage leads, voltage regulating switch, oil tank, bushing and other accessories.

The 2000kva oil-immersed transformer adopts a three-phase wound iron core structure, and the iron core material is made of high-quality grain-oriented magnetic silicon steel sheet.

The iron core is manufactured with advanced technology, with low loss and low noise. The structure is fully considered to reduce loss and overexcitation to meet the requirements of heat dissipation and transportation. The grounding of the iron core is led out from the top of the fuel tank by a bushing with a power frequency withstand voltage of 3KV. bottom of the transformer. The insulation material of the body is made of high-quality high-performance high-density cardboard. The high and low voltage leads are made of soft copper, and the oil tank adopts a bell-shaped structure to reduce the factor of oil leakage.

The 2000kva oil-immersed transformer adopts a corrugated oil tank with a fully sealed structure. The top of the oil tank is equipped with high and low voltage bushings, pressure relief devices, oil level indicating devices and gas relays.

The nameplate and temperature indicating device of the 2000kva transformer are installed on the side of the transformer and in the observation position.

A jack device is installed at the bottom of the 2000kva oil-immersed transformer shell, and a horizontal traction device is installed at the lower part to facilitate the movement of the transformer without lifting equipment.

The body, oil tank, cooler and related connection parts of the 2000kva oil-immersed transformer have been tested to ensure no leakage or deformation.

Transformers and metal outer surfaces are treated with anti-corrosion treatment.

Daelim's 2000kvA oil-immersed transformer specification

What is a 2000kvA dry-type transformer?

2000 KVA dry type transformer

The 2000kva dry-type transformers currently on the market are mainly epoxy resin cast dry-type transformers with a rated capacity of 2000kva.
This transformer is cast with a thin layer of epoxy resin for good insulating properties.
And this transformer also has excellent short-circuit resistance and lightning shock resistance.
The shell of the 2000kva dry-type transformer is made of stainless steel, which is safe and reliable, and the protection level reaches IP20. It has excellent mechanical strength and will not deform under the action of short-circuit electric power. Low loss, low temperature rise and high efficiency.
2000kvA dry-type transformers are generally used indoors at an altitude of 1000 meters or less, and can work normally at a high temperature of 40 degrees Celsius.
Due to the safety and reliability of the 2000kvA dry-type transformer, it is directly installed in the docks, power plants, residential areas and other places with large power consumption.

Daelim's 2000kvA dry-type transformer specification

What is a 2000kvA pad mounted transformer?

2000 kva pad mounted transformer refers to a pre-installed transformer with a rated capacity of 2000 kva. It integrates transformers, low-voltage electrical equipment and high-voltage equipment into a compact layout.

2000 kva pad mounted transformer has the characteristics of strong complete set, small size, compact structure, energy saving and environmental protection, beautiful appearance, low noise, safe and reliable operation, and movable.
The 2000kva pad mounted transformer is currently the most widely used distribution transformer in the city, and it belongs to a type of oil-immersed transformer. Because of its easy installation, good integrity and convenient maintenance, it is widely used in residential communities, commercial complexes, factories, mines, oil fields and other places.

Significance in Various Industries

Key Applications:

  • Industrial Sector: In manufacturing and industrial plants, these transformers are crucial for running heavy machinery, ensuring consistent power supply and voltage regulation.
  • Commercial Buildings: They cater to the power needs of large commercial buildings, including shopping centers and office complexes, by efficiently distributing electrical power throughout the structure.
  • Utility Services: For utility companies, 2000 kVA transformers are integral in substation applications for regulating voltage levels in the power distribution grid.
  • Renewable Energy: In the renewable energy sector, particularly in solar and wind farms, these transformers are instrumental in managing and transforming the power generated for grid compatibility.

By understanding the role and importance of 2000 kVA transformers, electrical engineers and power distribution professionals can optimize power systems for efficiency, reliability, and safety, catering to the varied needs of different industries.

Daelim's 2000kvA pad mounted transformer specification

2000 kva pad mounted transformer refers to a pre-installed transformer with a rated capacity of 2000 kva. It integrates transformers, low-voltage electrical equipment and high-voltage equipment into a compact layout.

2000 kva pad mounted transformer has the characteristics of strong complete set, small size, compact structure, energy saving and environmental protection, beautiful appearance, low noise, safe and reliable operation, and movable.

The 2000kva pad mounted transformer is currently the most widely used distribution transformer in the city, and it belongs to a type of oil-immersed transformer. Because of its easy installation, good integrity and convenient maintenance, it is widely used in residential communities, commercial complexes, factories, mines, oil fields and other places.

Daelim's 2000kvA pad mounted transformer specification

Daelim's 2000kvA pad mounted transformer dimensions

2000 kVA Transformer Specifications

Here are the key specifications for a 2000 kVA transformer, presented in a tabular format for clarity:

Specification Details
Voltage Ratings Primary: Up to 35 kV, Secondary: 208Y/120 to 25000 V (typical)
Current Ratings Primary: Varies with voltage level, Secondary: Based on output voltage and 2000 kVA rating
Impedance Typically 5-7%, impacts voltage regulation and short circuit performance
Cooling Methods Options include oil-filled (standard), dry-type, and forced-air cooling systems
Efficiency High efficiency, typically >98%, low energy loss

These specifications provide a comprehensive overview of the key features of a 2000 kVA transformer, including voltage and current ratings, impedance, cooling methods, and efficiency considerations. This information is crucial for electrical engineers and professionals in making informed decisions regarding transformer selection and application.

Applications of 2000 kVA Transformers

2000 kva transformer for sale

2000 kVA transformers find applications across a broad spectrum of industries and sectors due to their significant power handling capacity. Here are some of their key applications:

  1. Power Distribution:

    • Industrial Applications: These transformers are used to step down the high voltage from the power grid to the lower voltage levels required for industrial machinery and equipment.
    • Commercial Applications: In commercial settings like shopping malls, hospitals, or large office buildings, they adjust power to suitable levels for lighting, HVAC systems, and other electrical needs.
  2. Renewable Energy Integration:

    • Solar Farms: These transformers play a crucial role in connecting solar panel arrays to the power grid, converting the DC output of the panels into AC power at the required grid voltage.
    • Wind Turbines: Similarly, in wind energy generation, they transform the voltage from wind turbine generators to levels suitable for grid distribution.
  3. Data Centers:

    • These transformers are integral in data centers, ensuring a reliable power supply to support critical IT infrastructure. They help in managing the power drawn from the grid and distributing it efficiently within the data center.
  4. Cryptocurrency Mining:

    • Given the high energy demands of cryptocurrency mining operations, 2000 kVA transformers are used to provide a stable and reliable power supply, ensuring uninterrupted mining activities.
  5. Public Utilities:

    • In public utility services, these transformers enhance the efficiency and stability of power distribution networks. They are employed in substations and other distribution points to regulate the flow of electricity across residential, commercial, and industrial areas.

Each application highlights the transformer's ability to manage large power loads and adapt to various voltage requirements, thereby underscoring their versatility and critical role in modern electrical infrastructure.

How many KW appliances can a 2000KVA transformer carry, and what is the maximum allowable current of the line?

A 2000KVA transformer can carry a load of 1700 kW if it is all electrothermal (resistive) loads.

But if all of them are inductive loads such as motors, they will be discounted by 60%, which is a motor load of 1200 kilowatts.
If there are both, then 30% off (1400KW) or 20% off (1600KW), it depends on which load accounts for more proportion.

In fact, according to the regulations of the Electric Power Bureau, the maximum load is 85% of the full load, which is 1700KVA. Maximum line current is 2586 amps.
Calculate like this: 1700KVA÷380V÷1.732=2.5859446KA=2585.9949A≈2586A≈2600A.

How to turn off the 2000kva transformer?

The transformer did not shut down this statement, it should be withdrawn from operation. It can be realized by switching off operation.

The basic principle is to cut off the circuit breakers and isolating switches on the high and low voltage sides of the 2000kva transformer.

To turn off the transformer, it is necessary to power off the upstream of the 2000kva transformer. The upstream high-voltage power supply of the 2000kva transformer has a circuit breaker and a drop insurance.

Stop the low-voltage side load first, and disconnect the low-voltage side circuit breaker. Then stop the high-voltage side power supply of the 2000kva transformer, and pull the high-voltage side circuit breaker to the test or maintenance position.

What is the voltage of the 2000 kVA transformer into the household?

The input voltage of a 2000 kVA transformer is 380 volts, but the voltage into the transformer needs to be determined according to the voltage of the power supply system, generally 10 kV, 30 kV, etc.

How to choose the incoming cable on the high voltage side of the 2000kva transformer?

Copper core plastic cables should be used.
Why?
Because the current i=2000kva/(1.732*10kv*0.9)=128a on the high-voltage side (10kv) of the 2000kva transformer.
The current carrying capacity of the cable of 70 can reach 140a. Considering the poor heat dissipation of buried laying, cable production quality, power factor, etc., it is recommended to use yjv22-10kv-3*95 copper core plastic cable.

How to choose the circuit breaker of the 2000KVA transformer high voltage incoming cabinet?

For SF6 circuit breakers, the selection method is the same as that of vacuum circuit breakers, but in power distribution systems, vacuum circuit breakers are mostly used.

1. Select the type of circuit breaker according to the cabinet type of the transformer. For indoor fixed 10KV switchgear, most of them use ZN28 vacuum switch, equipped with a spring operating mechanism, which can be operated by AC, DC electric operation, or manual operation;

For indoor removable 10KV switchgear (such as KYN type), VS1 type vacuum switch can be selected, equipped with a spring integrated operating mechanism, which can be operated by AC, DC electric operation, or manual operation;

2. Select the rated current of the circuit breaker. Generally, there are four types of power distribution circuit breakers: 630A, 1000A, 1250A, and 1600A. You should calculate the load current flowing through the circuit breaker according to the load situation, and then select the rated current after leaving a margin; for a 2000KVA transformer, its Rated current I=2000/(1.732*10)=115.5A, a 630A circuit breaker can be selected initially, but it should also be verified;

3. Verify the breaking current of the selected circuit breaker. Calculate the short-circuit current value of the installation site of the circuit breaker, and compare it with the breaking current value of the circuit breaker initially selected. After leaving a margin, the breaking current value of the circuit breaker should be greater than the maximum short-circuit current value of the installation site, so as to ensure In the event of a short circuit, the circuit breaker can operate reliably and remove the fault without damage to itself. Generally, the rated short-circuit breaking current values of 10KV vacuum circuit breakers are mostly 20KA, 25KA, 31.5KA, 40KA, corresponding to the above 630A, Four rated currents of 1000A, 1250A and 1600A; if the installation site of the 2000KVA transformer is relatively close to the outlet of the substation, and the maximum short-circuit current value is 26KA, then the rated short-circuit breaking current of the 630A switch is 20KA, which cannot meet the requirements of the point of use It is necessary to choose a circuit breaker with a rated current of 1250A and a rated short-circuit breaking current of 31.5KA.

4. Check other cases. Such as phase-to-phase distance, installation size, interlocking situation, whether there is blocking, whether it has an overcurrent coil, whether it has a voltage loss, etc.

How to choose 2 sets 1000Kva transformers and 1 set 2000Kva transformer?

If your factory equipment does not work all day, the critical load is very close to the capacity of the transformer, and the load is relatively stable. Then you can choose a 2000Kva transformer.

But if the equipment in your factory needs to be switched on and off every day, the load changes are relatively large, and there are people on duty, then you can consider using two units to run in parallel.

1000kva TRANSFORMER VS 2000kva TRANSFORMER

The advantages of choosing two 1000Kva transformers

1.2 sets of 1000KVA transformers are more economical to operate than 1 set of 2000KVA transformers. When the scheduling is more appropriate, the total running cost will be lower.

2. Two 1000KVA transformers have high power supply reliability, and the transformers can also be switched on and off according to the plant load.

3. From the point of view of operational reliability, it is better to use two units. If two units are running at the same time, if one unit fails, the other unit can carry an important primary load. The reliability of power supply with a single unit is not high.

4. Two 1000kva transformers have the advantage of flexible scheduling, one is used when the load is light, and two are used when the load is heavy.

Disadvantages of choosing two 1000Kva transformers

 1. One time investment is relatively large.

2. The number of supporting equipment is also doubled.

3.The installation location should also be larger.

4.The workload of maintenance is also larger.

The advantages and disadvantages of a 2000kva transformer are just the opposite of those of two 1000kva transformers.

What is the no-load loss of a 2000kva transformer?

Under normal circumstances, the no-load loss of the transformer (called iron loss) is about one thousandth of the transformer capacity; the rated loss of the transformer (called copper loss) is about one percent of the transformer capacity. S11 2000KVA type transformer enterprise standard: no-load loss 1960W load loss 17820W .

How to read the 2000 kVA Transformer Nameplates?

2000 kva transformer nameplate

Decoding Transformer Nameplates

Transformer nameplates provide essential information needed for the safe and efficient operation of the transformer. Understanding the data on these nameplates is crucial for electrical professionals.

Key Information on Nameplates:

  1. Manufacturer’s Name
  2. Model Number
  3. Serial Number
  4. Rated Power in kVA (2000 kVA)
  5. Primary and Secondary Voltage Ratings
  6. Frequency (usually 50 or 60 Hz)
  7. Phase (Single-Phase or Three-Phase)
  8. Impedance Percentage
  9. Temperature Rise Rating
  10. Cooling Method (e.g., ONAN – Oil Natural Air Natural)
  11. Insulation Class
  12. Year of Manufacture

Interpreting Key Specifications

Nameplate ItemSignificance
Rated Power (kVA)Transformer’s capacity; here, it’s 2000 kVA
Voltage RatingsPrimary and secondary voltages for which the transformer is designed
FrequencyOperating frequency, indicating compatibility with the power source
PhaseSingle or three-phase, dictating the type of electrical system
Impedance (%)Affects voltage regulation and fault current levels
Temperature RiseMaximum temperature rise above ambient at full load
Cooling MethodMethod of cooling, crucial for installation environment
Insulation ClassDetermines the operating temperature range

Nameplate Significance

  • Ensuring Proper Installation: Nameplate data helps in selecting the right location and setup for the transformer, considering factors like voltage requirements, cooling needs, and space constraints.
  • Operation: Operators can use nameplate information to integrate the transformer into the electrical system correctly, ensuring it operates within the specified limits.
  • Maintenance: Maintenance personnel rely on nameplate data to conduct appropriate servicing, repairs, and replacements. For example, understanding the cooling method is crucial for maintaining the transformer’s temperature within safe limits.
  • Safety Compliance: The nameplate information ensures that the transformer is used in accordance with safety standards and regulations.

In summary, a transformer’s nameplate is a critical reference that contains all necessary data for safe and efficient operation, maintenance, and compliance with electrical standards.

Influential factors affecting 2000 kVA transformer prices

2000 kva transformer specification

Key Players

  • The global market for 2000 kVA transformers is dominated by established manufacturers like ABB, Siemens, General Electric, Schneider Electric, and Toshiba. These companies have extensive product portfolios and offer a wide range of transformer solutions.
  • Regional players also contribute significantly, often specializing in particular applications or sectors.
  • North America and Europe: Emphasis on renewable energy integration and modernizing aging grid infrastructure.
  • Asia-Pacific: Rapid industrialization, particularly in China and India, drives demand for power distribution solutions.
  • Middle East and Africa: Investments in infrastructure development and renewable energy projects fuel market growth.

Market Dynamics

  • The shift towards renewable energy sources is a key driver, with increased demand for transformers in solar and wind power applications.
  • Technological advancements, such as smart transformers, are shaping the market.
  • Environmental regulations and efficiency standards are influencing product development.

Pricing Factors

Influential Factors Affecting Prices

  1. Raw Material Costs: The price of steel, copper, and insulating materials significantly impacts overall costs.
  2. Manufacturing Complexity: Custom specifications and advanced features like remote monitoring add to the production cost.
  3. Brand and Quality: Premium brands often command higher prices due to their reputation for quality and reliability.
  4. Transportation and Logistics: The cost of shipping heavy equipment like transformers varies based on distance and logistics complexity.
  5. Market Demand: Fluctuations in demand can influence prices, with higher demand typically leading to higher prices.

Cost-Effective Solutions

Sourcing Strategies
  • Comparative Analysis: Evaluate multiple suppliers to find competitive prices and favorable terms.
  • Bulk Purchases: Consider bulk orders or long-term contracts to secure better pricing.
  • Local Sourcing: Purchasing from local or regional suppliers can reduce transportation costs.
Procurement Strategies
  • Total Cost of Ownership: Consider not just the purchase price but also installation, maintenance, and operating costs.
  • Energy Efficiency: Invest in energy-efficient models that offer long-term savings on operational costs.
  • Negotiation: Leverage market knowledge and negotiation skills to secure favorable terms and discounts.

By understanding these market trends and pricing factors, professionals can make informed decisions when procuring 2000 kVA transformers, balancing cost with quality and performance requirements.

What is the primary and secondary side current of a 2000KVA power transformer?

Because the rated capacity of the transformer multiplied by the coefficient = rated current.

Therefore, the primary side current of 10KV/0.4KV, 2000KVA power transformer: I1=2000/(1.732*10)=115.47A,

Secondary side current: I2=2000/(1.732*0.4)=2886.83A.

A 2000 kVA transformer supplies a low-voltage power distribution cabinet. What size universal switch do I use in the low-voltage power distribution cabinet?

If 10KV/0.4KV

Transformer primary side current: 116A Secondary side current: 2880A

The main input circuit breaker selects 3000A-3500A

Can be equipped with three 1000A outlet cabinets.

The main busbar can use 80*8 copper busbar, but it is recommended to use 100*10 copper busbar.

What is the use environment of 2000kva transformer?

Do you need to make sure that your 2000kva transformer is an oil immersed transformer? Or a dry-type transformer? ,

The requirements for the environment are different between them.

Under normal circumstances, the 2000kva transformer can be below 1000 meters above sea level. If you have special requirements, such as high altitude, frequent lightning activities, wet tropics, dry tropics or areas with severe salt spray, etc. You can negotiate with the manufacturer, generally can meet the requirements.

How much does a 2000kva dry-type transformer lose in a day?

The no-load loss of a 2000kVA dry-type transformer is 3050W, and the load loss is 14450W. If it runs at full load, the loss per day is multiplied by 24 hours.
Load loss 14450*24H=346800W
No-load loss is 3050W*24H=73200W

2 sets of 2000kva dry-type transformers side by side at a safe distance?

The installation requirements of most countries are that the safe installation distance of two 2000kva dry-type transformers is more than 1 meter. The author recommends that you choose a safe distance of more than 1.5 meters.

What is the insulation resistance of a 2000KVA dry-type transformer?

High pressure to low pressure and ground is greater than 1000 megohms, high pressure to ground, low pressure to ground is also greater than 1000 megohms is qualified.

You can use a 2500 volt megohmmeter to measure.

Since the transformer is a large-capacitance device, the measurement will take a period of time. When the speed reaches 120/MIN or more, the normal operation is more than 30S.

Note: After the measurement, keep its speed until it is separated. Otherwise, it is easy to damage the instrument due to the discharge of the device under test..

If the measurement can meet the above parameters..

Prove the equipment is in good condition!

2000 KVA dry type transformers

Can a 2000kVA transformer cast half the power?

Yes, unless the power factor COSΦ is less than 0.5, there will be problems! Is the transformer loss will be larger! As long as the power of the equipment below is not greater than the maximum active power that the transformer can output, there is no problem!

According to the conventional power factor of 0.95, a 2000KVA transformer will output 1900KW of active power at full load.

However, the economic operating capacity of the general transformer is about 80% to 85%, so that the loss of the transformer will not be too high, and the service life will be longer!

So as long as the reactive power compensation is in place and the power factor is not lower than 0.85, it can be used!

How to judge the overload of 2000kVA transformer?

Transformers in normal operation are equipped with switchboards, and there are three AC ammeters on the switchboards to judge whether the transformer is overloaded according to the load current value usually used. Under normal circumstances, during the operation of the transformer, if the operating current exceeds the rated current on the nameplate, it is in overload operation.

The rated voltage of the primary side of the 2000kva transformer is 10KV, and the voltage of the secondary side is 0.4KV. According to the formula “rated voltage of 10,000 volts, the coefficient is just 0.6” and “rated voltage of 400 volts, the coefficient of 1.445”, the high-voltage side The current is (0.06×2000=120A), and the low-voltage side current is (1.445×2000=2890A).

Download Resource

About Daelim

Recent Posts

About Bin Dong

Hello, I am Bin, General manager of Daelim which is a leading transformer manufacturer. If you have problems when you are looking for the equipment, what you need to do is tell us.