1. Product Overview
1.1 General Introduction
Our 1250KVA three - phase dry - type distribution transformer is a technological marvel in the electrical field. It is meticulously engineered to address the complex and diverse power conversion and distribution requirements across a broad spectrum of applications. Whether it is deployed in large - scale industrial facilities with high - power machinery, expansive commercial complexes with numerous electrical appliances, or large - scale residential communities with a high density of households, this transformer serves as a reliable and efficient power hub.
1.2 Model Significance
The model of our 1250KVA transformer follows industry - standard naming conventions. For instance, if it belongs to a common series like SCB, "SCB" indicates a three - phase epoxy - resin cast dry - type construction. The model number further provides details about its energy - saving grade. A higher energy - saving grade not only implies lower power consumption but also contributes to a more sustainable power usage pattern. The 1250KVA rating clearly defines its large - scale power - handling capacity, making it an ideal choice for scenarios with significant power demands.
2. Structural Design
2.1 Core Construction
The core of the 1250KVA transformer is constructed using high - quality cold - rolled oriented silicon steel sheets. These sheets are assembled through a full - inclined joint and multi - level step - by - step lamination process. This construction method effectively minimizes the no - load loss of the core. By reducing no - load loss, the transformer operates more efficiently, especially during periods when the load is low or non - existent. Additionally, this design significantly reduces the noise generated by the transformer, making it suitable for installation in noise - sensitive areas such as hospitals, schools, and upscale residential areas.
2.2 Winding Design
The windings of the 1250KVA transformer are made from high - conductivity copper wires (alternatively, aluminum wires based on the design requirements). After winding, they are encapsulated within a solid insulation structure via epoxy - resin vacuum casting. The epoxy - resin provides excellent electrical insulation, enabling the windings to withstand high electrical stresses. This casting process also imparts substantial mechanical strength and protection against environmental factors such as moisture, dust, and corrosion. As a result, the windings can effectively resist short - circuit impacts, ensuring the stable operation of the transformer even under challenging working conditions.
3. Performance Characteristics
3.1 High Efficiency and Energy - Saving
Our 1250KVA transformer is designed with state - of - the - art techniques and premium materials, resulting in outstanding energy - saving capabilities. Compared to traditional transformers, it exhibits significantly lower no - load and load losses. This high efficiency not only helps end - users to reduce their long - term power consumption costs but also contributes to a more sustainable power distribution system. It meets or exceeds both national and international energy - saving standards, validating its energy - efficient design.
3.2 Safety and Reliability
One of the key advantages of our dry - type transformer is its oil - free design. This design eliminates the risks associated with oil - filled transformers, such as oil leakage, which can lead to fire hazards and environmental pollution. The epoxy - resin cast windings have excellent moisture - proof, dust - proof, and corrosion - proof properties. These characteristics ensure that the transformer can operate reliably in a wide range of environmental conditions, from humid coastal areas to dusty industrial zones. The transformer's reliable performance is further enhanced by its ability to maintain stable operation under different load conditions, providing a consistent power supply to connected electrical equipment.
3.3 Low Noise Operation
The design of the core and windings is optimized to minimize the noise generated during the transformer's operation. In areas where the transformer is installed near residential or commercial buildings, low - noise operation is crucial. The reduced noise levels create a more comfortable environment for people living or working nearby. It also eliminates the need for additional noise - reduction measures, which can lead to cost savings during installation and operation.
4. Technical Parameters
4.1 Rated Capacity
The rated capacity of this transformer is 1250KVA, making it suitable for handling large - scale electrical loads. It can provide a stable power supply to large - scale industrial machinery, extensive commercial equipment, or a large number of residential buildings. This capacity allows it to meet the power demands of various applications, making it a versatile choice for different power distribution scenarios.
4.2 Rated Voltage
The high - voltage side of the transformer can be customized to different voltage levels according to the power grid requirements. Common high - voltage ratings include 10 kV, 20 kV, 35 kV, etc. The low - voltage side can also be tailored to meet the specific needs of end - users. In most general distribution applications, the low - voltage side is often set to 0.4 kV for powering commercial and industrial equipment. However, other voltage levels can be provided upon request to meet specific system requirements.
4.3 Voltage Regulation Range
The transformer is equipped with a voltage regulation range, typically ±5% or as specified by the customer. This feature allows the transformer to adjust the output voltage to compensate for voltage fluctuations in the power grid. Voltage fluctuations can occur due to changes in load demand, grid conditions, or the operation of other electrical equipment. By regulating the output voltage, the transformer ensures that the electrical equipment connected to the low - voltage side receives a stable and consistent power supply, which is essential for the proper operation and longevity of the equipment.
4.4 Insulation Class
Our 1250KVA transformer offers insulation classes such as Class F or Class H. These insulation classes have excellent heat - resistance performance. During operation, the transformer may experience varying temperatures, especially under high - load conditions. The high - quality insulation ensures that the transformer can withstand these thermal stresses without insulation breakdown, guaranteeing long - term stable operation.
4.5 Impedance Voltage
The impedance voltage of the 1250KVA transformer is carefully designed according to relevant standards and customer requirements. The impedance voltage plays a crucial role in limiting the short - circuit current in the power system. In the event of a short - circuit, the impedance of the transformer helps to control the magnitude of the short - circuit current, preventing excessive current flow that could damage the transformer and other electrical equipment in the system. This protection mechanism ensures the safe operation of the entire power system.
5. Application Scenarios
5.1 Industrial Applications
In industrial settings, such as large - scale manufacturing plants, steel mills, and chemical processing facilities, the 1250KVA transformer is an excellent choice. These industries often have high - power - consuming equipment that requires a stable and reliable power supply. The transformer's ability to handle large loads, high - efficiency operation, and resistance to harsh industrial environments make it suitable for powering machinery, motors, and other electrical equipment used in the production process.
5.2 Commercial Establishments
For large - scale commercial buildings like shopping malls, convention centers, and large - scale hotels, our 1250KVA transformer can meet their substantial power needs. These establishments require power for lighting systems, air - conditioning units, escalators, and a wide range of electrical appliances. The low - noise operation of the transformer is particularly important in commercial settings as it helps maintain a comfortable environment for customers and employees. Additionally, the transformer's energy - saving features can help commercial businesses reduce their electricity costs.
5.3 Residential Applications
In residential areas, especially in large - scale apartment complexes or high - density housing developments, the 1250KVA transformer can provide a reliable power supply to a large number of households. It can handle the combined power demands of various electrical appliances used in homes, such as air - conditioners, refrigerators, and lighting systems. The transformer's safe and efficient operation ensures a comfortable living environment for residents.
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