30 kV Three - Phase Dry - Type Distribution Transformer Product Description
1. Product Overview
1.1 General Introduction
Our 30 kV three - phase dry - type distribution transformer is a high - performance electrical device engineered to efficiently distribute power in various electrical systems operating at the 30 kV voltage level. It is designed to meet the growing demands for reliable and efficient power conversion in modern industrial, commercial, and infrastructure projects.
1.2 Model Information
The model of this transformer is [Model Name]. The naming convention is carefully crafted to convey essential information about the product. For example, "SCB18" might indicate it's a three - phase epoxy - resin cast dry - type transformer with an energy - saving level of 18, which is highly efficient in power utilization. The model is optimized for a 30 kV high - voltage side, enabling seamless connection to 30 kV medium - voltage power grids.
2. Structural Design
2.1 Core Structure
The core of the transformer is made from high - quality cold - rolled oriented silicon steel sheets. These sheets are assembled using a full - inclined joint and multi - level step - by - step lamination process. This construction method significantly reduces the no - load loss of the core. In a 30 kV power system, minimizing no - load loss is crucial as it improves the overall efficiency of the transformer, especially during periods when the load is low or absent. Additionally, this design helps in reducing the noise generated by the transformer, making it more suitable for installations near noise - sensitive areas such as residential zones, hospitals, and schools.
2.2 Winding Design
The windings are composed of high - conductivity copper wires. After being wound, they are encapsulated in a solid insulation structure through epoxy - resin vacuum casting. The epoxy - resin provides excellent electrical insulation, ensuring that the windings can withstand the high electrical stresses associated with a 30 kV power system. This casting process also gives the windings mechanical strength and protection against environmental factors like moisture, dust, and corrosion. As a result, the windings can effectively resist short - circuit impacts, which are common in power systems, ensuring the stable operation of the transformer even under challenging working conditions.
3. Performance Characteristics
3.1 High Efficiency and Energy - Saving
Our 30 kV transformer is designed with advanced techniques and high - quality materials, which contribute to its exceptional energy - saving capabilities. Compared to traditional transformers, it has significantly lower no - load and load losses. This high efficiency not only helps end - users reduce their long - term power consumption costs but also aligns with global efforts towards sustainable energy use. By minimizing energy waste, the transformer plays a vital role in promoting a more environmentally friendly power distribution system. It meets national and international energy - saving standards, which validates its energy - efficient design.
3.2 Safety and Reliability
One of the key advantages of our dry - type transformer is its oil - free design. In a 30 kV power system, this 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 sites. The reliable performance of the transformer 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 reduce the noise generated during the transformer's operation. In areas where the transformer is installed near residential or commercial buildings in a 30 kV power distribution network, low - noise operation is highly desirable. 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 save costs during installation and operation.
4. Technical Parameters
4.1 Rated Capacity
The rated capacity of the 30 kV transformer is available in a range suitable for different power consumption scenarios. It can handle various load levels, providing a stable power supply to small - scale electrical installations as well as large - scale industrial plants connected to the 30 kV grid. The capacity options ensure that customers can choose the most appropriate transformer based on their specific power requirements.
4.2 Rated Voltage
The high - voltage side of the transformer is rated at 30 kV, which is its primary operating voltage for connection to the 30 kV power grid. The low - voltage side can be customized according to the specific needs of end - users. In most common 30 kV power distribution applications, the low - voltage side is often set to 0.4 kV for general distribution to 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 30 kV 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 30 kV transformer offers insulation classes such as Class F or Class H. These insulation classes have excellent heat - resistance performance. In a 30 kV power system, the transformer may experience varying temperatures during operation, 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 30 kV 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 30 kV power system.
5. Application Scenarios
5.1 Industrial Applications
In industrial settings, such as manufacturing plants, chemical factories, and metal - processing facilities, the 30 kV transformer is widely used. These industries often have high - power - consuming equipment and complex production processes that require a stable and reliable power supply. The transformer's ability to handle large load capacities, high - efficiency operation, and resistance to harsh industrial environments make it an ideal choice. It can provide the necessary power to drive industrial machinery, ensuring smooth production operations.
5.2 Commercial Establishments
Large commercial buildings like shopping malls, hotels, and office complexes that are connected to the 30 kV power grid also rely on our transformers. These establishments require a significant amount of power to operate lighting systems, air - conditioning units, elevators, and various 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 Rural Power Distribution
In rural areas where the 30 kV power grid is extended to provide electricity, our transformers play a crucial role. Rural power distribution often faces challenges such as long transmission distances and harsh environmental conditions. The robust design of our 30 kV transformer allows it to withstand these challenges and provide a reliable power supply to rural households, agricultural facilities, and small rural businesses. It helps improve the quality of life in rural areas by enabling the use of modern electrical appliances and supporting agricultural production.
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