Product Description:2MVA 12 2UDA90262000014

• Power Rating:

  • 2 MVA (Megavolt-Amps) indicates the transformer's maximum capacity. 1 MVA = 1,000,000 volt-amperes (VA), so the transformer can handle up to 2,000,000 VA of electrical power. This is typically used for medium-sized industrial, commercial, or utility applications where significant but not extreme amounts of power are needed.

• Voltage Rating:

  • Primary Voltage: The input voltage (high voltage side), which can range depending on the transformer design and application (for example, 11kV, 33kV, etc.).
  • Secondary Voltage: The output voltage (low voltage side), which is stepped down or up depending on the requirement, for example, 400V, 690V, or 480V for industrial equipment.

• Cooling Method:

  • Many transformers, especially ones at the 2 MVA level, may use ONAN (Oil Natural Air Natural) cooling, which means they are cooled by natural convection of air and oil. Higher ratings may require forced oil circulation or other cooling mechanisms, but 2 MVA units typically use natural cooling.

• Phase Configuration:

  • It’s likely a three-phase transformer, which is standard for industrial and commercial applications. This allows for efficient power delivery over three conductors, suitable for motors and large equipment.

• Application:

  • Transformers of this size are typically used in settings such as:
    • Industrial plants to step down from high voltage to the lower, usable voltages for machinery and equipment.
    • Power distribution in medium-voltage grids to balance power flow to various areas.
    • Commercial buildings or infrastructure projects, where large equipment or heavy power consumption is required.

• Construction:

  • ABB transformers are generally known for robust construction, with high-quality materials and design that ensure reliability and longevity in demanding environments.

• Protection and Safety:

  • ABB transformers typically come with various built-in protections, such as overload protection, temperature monitoring, and tap changers to regulate voltage variations.

• Efficiency and Reliability:

  • ABB is a leader in transformer manufacturing, and their products are known for being efficient, low-maintenance, and durable. The 2 MVA transformer is no exception, designed to provide stable performance over a long lifespan.

Features:2MVA 12 2UDA90262000014

• 2 MVA Rating: The transformer can handle up to 2,000,000 Volt-Amps (VA) of apparent power, suitable for medium-scale industrial and commercial applications. This ensures that the transformer can supply sufficient power for demanding equipment or distributed power systems.
• Three-Phase Power: Most 2 MVA transformers from ABB are designed as three-phase transformers, providing balanced and efficient power delivery to industrial equipment, commercial buildings, and electrical grids.
• Balanced Load: Three-phase transformers are ideal for heavy-duty operations that require a stable and continuous power supply.
• Tap Changer (Optional): Some ABB transformers feature a on-load tap changer (OLTC) or off-load tap changer (OLTC) that allows for voltage adjustments during operation. This ensures consistent output voltage even with fluctuations in the input (primary) voltage or varying load demands.
• Voltage Regulation: ABB transformers maintain voltage within specified tolerances to ensure smooth operation of connected equipment. They are designed to perform well across the typical voltage range of the transformer.
• ONAN Cooling (Oil Natural Air Natural): Typically, these transformers use ONAN cooling, where natural convection cools the oil, which is circulated within the transformer to dissipate heat. This is a standard cooling method for transformers of this capacity.
• Efficient Heat Dissipation: The cooling design is optimized for the 2 MVA rating to prevent overheating and maintain efficient operation even in continuous or heavy-duty applications.
• Sturdy Design: ABB transformers are built with durable materials to ensure long-term reliability, even in harsh industrial environments. They are designed to withstand vibrations, moisture, and temperature extremes commonly found in factories or utility substations.
• Corrosion-Resistant Components: Many ABB transformers feature corrosion-resistant materials to extend the operational life of the transformer, especially in outdoor or exposed locations.
• Low Losses: ABB designs its transformers to have low no-load losses and load losses, making them highly energy-efficient. This reduces operating costs over the lifespan of the transformer, making them a cost-effective solution.
• Core Material: The core is typically made from high-grade electrical steel, which minimizes core losses (eddy current and hysteresis losses) and maximizes efficiency.
• Overload Protection: ABB transformers are equipped with overload protection mechanisms to prevent damage in case of excessive current.
• Over-temperature Protection: Temperature sensors monitor the transformer's core and oil temperature, ensuring the transformer does not overheat. If temperatures exceed safe limits, the protection system will trigger alarms or shut down the system.
• Pressure Relief Valve: The transformer may include a pressure relief valve to protect the tank from excessive internal pressure that could lead to a rupture or failure.
• International Standards: ABB transformers generally comply with IEC (International Electrotechnical Commission) and ANSI (American National Standards Institute) standards, ensuring they meet global safety, environmental, and performance requirements.
• Environmentally Friendly: ABB transformers are designed with environmentally safe materials, such as non-toxic oils, and meet regulations for sustainable and eco-friendly manufacturing processes.
• Low Maintenance Requirements: ABB’s designs prioritize reliability and long operational lifespans, which translate into low maintenance needs. Routine checks, such as oil level monitoring and periodic inspections, are typically sufficient to keep the transformer operating smoothly.
• Easy Access for Service: Components like bushings, tap changers, and cooling systems are designed for easy access during servicing, reducing downtime and maintenance costs.
• Low Noise Operation: ABB transformers are often designed to operate with minimal noise levels, which is an important consideration in residential or commercial areas. Advanced core materials and manufacturing techniques help reduce operational noise.
• Flexible Configuration: ABB transformers can be customized to meet specific voltage, current, and power requirements. Different tap settings and cooling methods can be specified based on the operational environment.
• Online Monitoring Systems: Some ABB transformers come with built-in remote monitoring systems that allow operators to monitor transformer health in real-time. These systems track parameters such as temperature, load, oil condition, and other critical metrics, ensuring proactive maintenance and reducing the risk of failure.

Technical Parameters:2MVA 12 2UDA90262000014

• Apparent Power (S):
  • 2 MVA (2,000,000 VA) — The maximum power the transformer can handle under standard operating conditions.
• Primary (High Voltage Side):
  • Typical values: 11 kV, 33 kV, 13.8 kV, or other voltages, depending on the transformer configuration and application.
  • The primary voltage is the voltage at which the transformer receives electrical power.
• Secondary (Low Voltage Side):
  • Typical values: 400V, 690V, 480V, 600V, or customized values, depending on the load requirements.
  • The secondary voltage is the voltage supplied to the equipment or network after the transformer steps down the power.
• Impedance (Z):
  • Typical value: 4-6% (depends on transformer design).
  • The impedance of the transformer affects the load voltage regulation and short-circuit fault tolerance.
• Voltage Regulation:
  • Typical regulation: ±5% to ±10%.
  • Voltage regulation refers to the ability of the transformer to maintain a stable output voltage as the load varies.
• Nominal Frequency:
  • 50 Hz or 60 Hz (depending on the region or application).
  • The frequency refers to the alternating current (AC) cycle rate. For example, 50 Hz is common in Europe and Asia, while 60 Hz is used in North America.
• Cooling Type:
  • ONAN (Oil Natural Air Natural) — The transformer is typically air-cooled using natural convection and oil circulation.
  • Alternative cooling methods may be used for larger transformers or more demanding environments (e.g., forced air or oil circulation).
• Efficiency:
  • Typical efficiency: 98-99% at full load.
  • The efficiency of the transformer indicates how much of the input power is converted into usable output power, with minimal losses.
• Core Type:
  • Laminated core made from high-quality electrical steel to minimize eddy current losses and maximize efficiency.
• Core Loss:
  • Typical value: Around 0.2% to 0.5% of the rated power.
• Load Losses (Copper Losses):
  • Typical value: Around 0.3% to 1.5% of the rated power (depending on the transformer’s design).
  • Load losses occur due to the resistance of the windings when current flows through them.
• Tap Changer Type:
  • Off-load or On-load Tap Changer (OLTC) — Some models come with a tap changer for adjusting the output voltage. This allows the transformer to regulate voltage variations and maintain stable operation.
• Number of Taps:
  • Typically 3 to 5 taps, depending on the transformer design.
• Short Circuit Withstand Time:
  • Typically 2 to 5 seconds for short circuit conditions, depending on the transformer design and the standard for that region.
• Operating Temperature Range:
  • -10°C to +40°C for typical indoor installations, though outdoor units can tolerate broader temperature ranges.
• Storage Temperature:
  • Typically -20°C to +60°C.
• Insulation Class:
  • Class A (up to 105°C) or Class B (up to 130°C), depending on the transformer design.
  • The insulation class refers to the maximum operating temperature the transformer windings and components can safely withstand.
• Noise Level:
  • Typically < 60 dB (at a distance of 1 meter) for transformers of this size.
  • ABB transformers are designed to operate quietly with minimal noise emissions, which is important in residential or commercial areas.
• Tank Construction:
  • Steel tank with protective coatings to resist corrosion and external damage.
• Tank Rating:
  • Typically IP 20 to IP 54 for protection against dust and moisture. Higher ratings may be available for outdoor use.
• Typical Weight:
  • Between 3,000 kg and 6,000 kg (depending on the voltage and specific design).
• Dimensions:
  • Varies based on design and mounting, but for a 2 MVA transformer, the dimensions typically range from 1.5 m x 1.5 m x 2.5 m (height, width, and length).
• Overload Protection:
  • Equipped with temperature sensors and overload protection devices to prevent overheating and ensure the transformer operates within safe limits.
• Pressure Relief Valve:
  • A valve to release excess pressure from the tank in case of internal fault conditions (e.g., overheating or fault currents).
• Buchholz Relay (if applicable):
  • A Buchholz relay can be included for detecting gas accumulation, which is a key indicator of internal faults.
• IEC 60076:
  • Compliance with international standards for power transformers, ensuring reliable performance and safety.
• ANSI/IEEE Standards:
  • In North America, ABB transformers typically comply with ANSI/IEEE standards.
• Environmental Compliance:
  • Designed to meet environmental guidelines for minimal impact (e.g., non-toxic insulating oil, low emissions).

Applications:2MVA 12 2UDA90262000014

• Manufacturing Plants and Factories:
  • Powering heavy machinery such as motors, pumps, conveyors, and industrial ovens. A 2 MVA transformer ensures that the factory equipment receives stable and reliable electrical power at the correct voltage.
• Automation and Control Systems:
  • Large industrial facilities with automated production lines often require reliable power to control machinery and processes. The transformer can step down the high incoming voltage from the grid to the levels required by control panels and automation systems.
• HVAC Systems:
  • High-power HVAC (Heating, Ventilation, and Air Conditioning) systems in industrial buildings or large factories often need dedicated transformers to ensure stable operation.
• Shopping Centers and Malls:
  • Shopping centers and malls with a variety of tenants need stable, high-quality electrical power. The 2 MVA transformer can provide power to lighting, escalators, HVAC systems, and commercial-grade refrigeration.
• Office Buildings:
  • In large office buildings or business centers, the transformer ensures power is available for lighting, elevators, air conditioning, and office equipment such as computers and printers. It can handle the demand of high-rise buildings, which typically require a significant power supply.
• Hotels and Resorts:
  • Hotels with extensive electrical systems (e.g., for lighting, kitchen equipment, elevators, and air conditioning) benefit from the power capacity of a 2 MVA transformer.
• Substations for Power Distribution:
  • A 2 MVA transformer is commonly used in power distribution substations to step down high-voltage transmission power from the grid to lower distribution voltages (e.g., 11 kV to 400V). This makes it suitable for local area power distribution, supplying electricity to neighborhoods or industrial parks.
• Regional Power Grids:
  • In smaller utility grids or distributed energy systems, the transformer is used to ensure reliable voltage control and provide power to local homes, businesses, or industrial facilities.
• Renewable Energy Integration:
  • Power plants, such as solar farms or wind energy installations, can use a 2 MVA transformer to step up or step down the power generated by renewable energy sources to be compatible with the main electrical grid.
• Data Centers:
  • Data centers housing servers, storage, and communication equipment require stable, uninterrupted power. A 2 MVA transformer can step down high-voltage electricity to the levels required by critical equipment like cooling systems, power systems (UPS), and servers.
• Telecommunication Facilities:
  • Telecommunications infrastructure, including towers and network equipment, require consistent power. A 2 MVA transformer can power telecommunication stations and local hubs where power reliability is paramount for uninterrupted services.
• Hospitals:
  • Hospitals require high-quality, uninterrupted electrical power to support critical equipment such as operating rooms, life support systems, lighting, and HVAC. A 2 MVA transformer can supply power to an entire hospital or large healthcare facility.
• Medical Equipment:
  • Medical research centers or large clinics with advanced diagnostic equipment (MRI, X-ray machines, etc.) may also use a 2 MVA transformer to supply reliable electrical power.
• Large-Scale Construction Projects:
  • During the construction of large facilities such as airports, stadiums, or large office complexes, temporary power needs can be met with a 2 MVA transformer. It helps provide electricity for construction tools, cranes, lighting, and site equipment.
• Utilities for Public Infrastructure:
  • For street lighting, water pumping stations, and other public infrastructure, a 2 MVA transformer is used to ensure that power is available at a consistent voltage and can be distributed across the grid or local utilities.
• Mining Operations:
  • In remote mining locations, transformers like the 2 MVA ABB unit are used to step down the power from the grid or local generator to the levels required by mining machinery and processing equipment.
• Oil & Gas Fields:
  • Transformers are essential in oil rigs and gas extraction sites, where they supply power to pumps, compressors, drilling machines, and communications equipment.
• Irrigation Systems:
  • Large agricultural operations with automated irrigation systems can use a 2 MVA transformer to supply power to irrigation pumps, making it easier to manage large-scale farming operations.
• Agriculture Processing Plants:
  • Powering equipment in food processing plants, dairy farms, and grain mills also falls under the scope of applications for a 2 MVA transformer.
• Railway Stations and Depots:
  • Large transport hubs like railway stations and maintenance depots require transformers to power lighting, ticketing systems, HVAC, and train servicing equipment.
• Electric Vehicle Charging Stations:
  • A 2 MVA transformer can be used in electric vehicle (EV) charging stations where multiple charging points require stable, high-capacity power delivery.
• Backup and Standby Power:
  • A 2 MVA transformer is useful in providing temporary backup power during maintenance, emergencies, or power outages, especially in critical infrastructure like hospitals, data centers, and industrial facilities.
• Construction Sites and Events:
  • For large-scale temporary installations like festivals, concerts, or exhibitions, a 2 MVA transformer can supply temporary power to lighting, sound systems, and electrical equipment.
• Solar Power Plants:
  • In large solar farms, the transformer can be used to step up the voltage from the solar inverters to the appropriate level for grid injection or local consumption.
• Wind Power Plants:
  • In wind farms, the 2 MVA transformer can be used to adjust voltage levels, ensuring power generated by wind turbines is suitable for use in the local grid or by industrial clients.

Customization:2MVA 12 2UDA90262000014

• Primary (High Voltage Side):
  • The transformer’s input voltage can be customized to suit the supply voltage of the electrical grid or local utility, such as 11 kV, 33 kV, 13.8 kV, or other voltages.
  • Custom voltage levels can be requested for specific industrial processes or regional power distribution standards.
• Secondary (Low Voltage Side):
  • The output voltage can be tailored to meet the voltage requirements of the connected load, such as 400V, 480V, 690V, or other voltages.
  • For example, industrial machinery or motor-driven applications may require 400V or 480V, while some commercial or office applications may use 220V or 230V.

• ABB can integrate remote monitoring systems into the transformer, allowing operators to track parameters such as temperature, load, and oil level in real-time via IoT (Internet of Things) solutions.

• Advanced features like smart grid compatibility and integration with SCADA systems can be implemented for applications requiring real-time monitoring and control.
• Transformers can be customized to optimize core loss and copper loss for greater energy efficiency. For applications where minimizing energy consumption is important (such as 24/7 operations), a low-loss design may be a priority.

• ABB offers transformers with environmentally friendly insulating materials, including biodegradable oils or natural ester-based fluids, to reduce the environmental impact.
• The transformer’s enclosure can be customized for different environments, with protection ratings such as IP20 (basic protection) or higher (e.g., IP54 for outdoor or harsh conditions) to protect against dust, moisture, and water ingress.

• For installation in corrosive environments (e.g., coastal areas or chemical plants), custom corrosion-resistant coatings can be applied to the transformer tank to ensure durability and long service life.

• Transformers designed for outdoor use can be provided with weatherproof, robust enclosures and specialized components to withstand UV radiation, moisture, dust, and temperature fluctuations.
• For noise-sensitive environments, ABB can provide transformers with low-noise designs, using advanced insulation techniques and special materials to reduce the noise emitted by the transformer during operation.
• Custom noise levels, typically below 60 dB at 1 meter, can be achieved through optimized design and acoustic insulation.
• The winding configuration can be customized to suit specific applications. A delta-star connection is common for stepping down from medium to low voltage, whereas a star-star configuration may be used in balanced load applications.

• If needed, additional secondary windings or multi-voltage configurations can be provided for applications requiring multiple output voltages.
• A Buchholz relay can be installed to detect gas accumulation in oil-filled transformers. This is a useful safety feature to identify internal faults such as insulation failure or overheating before they lead to catastrophic failure.

• RTDs (Resistance Temperature Detectors) or thermocouples can be integrated for temperature monitoring. These sensors help prevent overheating by triggering alarms or automatic shutdowns if temperatures exceed safe thresholds.

• In case of excessive pressure buildup (e.g., from internal faults), the transformer can be fitted with a pressure relief valve to protect the tank from rupture.

• Custom overload and short-circuit protection devices can be installed to protect the transformer from excessive currents. These devices automatically disconnect the transformer in case of overcurrent situations.
• The impedance of the transformer is typically set during manufacturing but can be customized based on load and short-circuit fault requirements. The impedance affects the voltage regulation and fault tolerance of the transformer.
• For example, a higher impedance may be chosen for fault tolerance, while a lower impedance could be used to improve efficiency.

• Customization of voltage regulation allows you to define the acceptable range of output voltage under different load conditions. Typical regulation might be ±5% or ±10%, depending on the precision required for your application.
• An OLTC allows the transformer’s output voltage to be adjusted during operation, which is useful in applications with fluctuating loads or voltage variations from the grid. It can be set to adjust the secondary voltage automatically to maintain system stability.

• In simpler applications, an off-load tap changer (OLTC) can be used. This requires the transformer to be de-energized before adjustments are made to the voltage setting. Off-load tap changers are simpler but offer less flexibility.

• Customizable to suit the operational requirements, with common configurations being 5 or 9 taps for voltage regulation. A larger number of taps provides finer control over voltage variation.
• ABB offers several cooling options depending on the environmental conditions and load profile:
  • ONAN (Oil Natural Air Natural): Standard cooling method where natural circulation of oil and air cools the transformer.
  • ONAF (Oil Natural Air Forced): If the transformer is expected to run at higher capacities or in warmer environments, forced air cooling can be used to increase the cooling efficiency.
  • OFAF (Oil Forced Air Forced): For even greater cooling efficiency, forced oil circulation and forced air cooling can be used, suitable for environments with high ambient temperatures or heavy-duty industrial applications.

• Transformers can be customized for specific temperature ranges, such as -10°C to +40°C for typical indoor installations or -20°C to +60°C for harsher environments (e.g., outdoor installations, extreme weather conditions).

Support and Services:2MVA 12 2UDA90262000014

Our Industrial Servo Drives product comes with a range of technical support and services to ensure optimal performance and customer satisfaction. These include:

• Installation support
• Operating and maintenance guidance
• Diagnostic and troubleshooting assistance
• Repair services
• Software and firmware updates
• Training and education programs for operators and technicians
• Customization and engineering services for unique applications

Our team of experienced technicians and engineers are dedicated to providing timely and effective solutions to any technical issues or concerns. We strive to exceed our customers' expectations and ensure that our Industrial Servo Drives product delivers reliable and efficient performance to meet their specific needs.