10Kv 400v 30Kva 50Kva 80Kva Oil Immersed Distribution Transformers
1. Product Overview
The10kV 400V Oil Immersed Distribution Transformer is a high-performance three-phase power distribution device designed for medium and low voltage power grid conversion and power distribution systems. This product series covers mainstream capacity specifications of 30KVA, 50KVA, and 80KVA, adopting mature oil-immersed cooling and insulation technology, which can stably convert 10kV high-voltage electricity into 400V low-voltage industrial and civilian power, fully complying with IEC 60076 international power transformer standards and national grid technical specifications .
As a core equipment of urban and rural power distribution networks, the 10kV 400V oil immersed distribution transformer features a fully sealed oil-immersed structure, stable voltage conversion performance, and strong environmental adaptability. The 30KVA, 50KVA, and 80KVA capacity models are precisely tailored for small and medium load power demand scenarios, solving the power supply matching problem of decentralized and small-capacity power consumption units, and realizing efficient and safe power transmission and distribution .
2. Core Product Description
2.1 Basic Technical Parameters
This series of oil immersed distribution transformers operates at a rated high voltage of 10kV and a rated low voltage of 400V, with a standard working frequency of 50Hz. The product portfolio includes three classic capacity grades: 30KVA, 50KVA, and 80KVA, covering the power demand of small-scale industrial production, residential communities, commercial facilities and rural power grids . Adopting Dyn11 vector group design, the transformer has excellent three-phase voltage balance performance, low harmonic interference, and strong overload resistance .
2.2 Structural Design Principle
The 10kV 400V oil immersed distribution transformer adopts a fully sealed oil-immersed cooling (ONAN) structure. The internal high-quality transformer oil serves as both heat dissipation medium and insulating medium, which can effectively isolate internal coil windings, iron cores and other core components from the external environment . The optimized iron core and coil winding structure reduces magnetic leakage and no-load loss, while the integrally welded fuel tank and sealing structure prevents oil leakage, dust and moisture intrusion, ensuring long-term stable operation of the equipment .
Different capacity models (30KVA, 50KVA, 80KVA) adopt modular structural design. The 30KVA model is compact and lightweight, suitable for ultra-small load scenarios; the 50KVA model balances volume and power supply capacity, meeting conventional daily power demand; the 80KVA model enhances winding and heat dissipation configuration to adapt to intermittent heavy load working conditions, realizing differentiated coverage of multi-scenario load demands .
3. Core Application Purposes
The core function of the 10kV 400V 30KVA/50KVA/80KVA Oil Immersed Distribution Transformer is to complete step-down conversion and safe distribution of medium-voltage power in power systems. It undertakes the key task of connecting 10kV medium-voltage power grids and 400V low-voltage power consumption terminals, and is an indispensable core device for terminal power distribution .
Firstly, it realizes efficient voltage conversion, stably reducing 10kV grid high voltage to 400V safe low voltage that meets the requirements of industrial equipment, civilian electrical appliances and public facilities, avoiding equipment damage and safety hazards caused by high-voltage direct power supply . Secondly, it realizes centralized power distribution and load regulation, reasonably distributing electric energy according to the actual power consumption of terminals, balancing three-phase load, reducing power loss, and improving the overall operation efficiency of the power grid . In addition, the oil-immersed structure provides reliable overvoltage protection and short-circuit resistance, which can effectively buffer grid voltage fluctuations and external electrical impacts, protecting subsequent power consumption equipment and ensuring the continuity and stability of power supply .
4. Main Application Scenarios
With the advantages of small size, low loss, strong stability and wide adaptability, the 10kV 400V Oil Immersed Distribution Transformer (30KVA, 50KVA, 80KVA) is widely used in various terminal power distribution scenarios with small and medium load demand, covering civil, commercial, industrial, agricultural and new energy fields .
4.1 Urban and Rural Residential Power Distribution
It is applicable to power supply and distribution of urban residential communities, rural centralized residential areas, and scattered rural households. The 30KVA and 50KVA models are very suitable for rural power grid renovation and urban old community power upgrading, meeting daily lighting, household electrical equipment and domestic water electricity demand . The 80KVA model can cope with the peak power consumption of residential areas in summer and winter, solving the problem of insufficient power supply caused by centralized power consumption of residents.
4.2 Small and Medium Industrial Production
Widely used in small processing factories, workshop production lines, mining auxiliary facilities and small industrial parks. For small-scale machinery processing, packaging production, food processing and other industrial scenarios with stable small and medium load, 30KVA, 50KVA and 80KVA oil immersed distribution transformers can provide continuous and stable 400V industrial power, ensuring the normal operation of industrial equipment and effectively reducing industrial power consumption loss .
4.3 Commercial and Public Facilities
Applicable to shopping malls, community supermarkets, office buildings, schools, hospitals, scenic spots and other public and commercial places. This series of 10kV 400V oil immersed distribution transformers can meet the daily power demand of lighting, air conditioning, office equipment and public service equipment in commercial and public places. The stable voltage output effectively avoids equipment failure caused by voltage instability and ensures the safe operation of public facilities .
4.4 New Energy and Rural Special Scenarios
Matched with small distributed photovoltaic power stations and rural wind power supplementary power generation systems, it converts the generated electric energy into 400V grid-connected power or user-side power, realizing the consumption and transmission of new energy power . At the same time, it is also suitable for agricultural irrigation, rural breeding bases, rural road lighting and other agricultural power scenarios, adapting to the complex outdoor working environment of rural areas .
5. Core Product Features
5.1 Efficient Energy Saving and Low Loss
The 10kV 400V 30KVA/50KVA/80KVA Oil Immersed Distribution Transformer adopts high-quality cold-rolled silicon steel sheets to make iron cores, with optimized magnetic circuit design, which greatly reduces no-load loss, load loss and magnetic leakage loss . Compared with traditional transformers, the energy-saving effect is significantly improved, which can effectively reduce long-term operating power consumption and operation cost for users. The three capacity models maintain efficient energy conversion efficiency under rated and partial load conditions, adapting to the fluctuating power consumption characteristics of terminal loads.
5.2 Safe and Reliable Operation
The whole machine adopts a fully sealed oil-immersed insulation structure, and high-purity transformer oil is used for full immersion heat dissipation and insulation, which can withstand 10kV medium-voltage impact and effectively prevent insulation breakdown and short-circuit faults . The product has passed strict lightning impact test and short-circuit resistance test, with strong mechanical stability and impact resistance . It is equipped with perfect over-temperature and over-current protection performance, which can automatically adapt to load changes, avoid equipment burnout caused by overload, and ensure long-term safe and stable operation in outdoor and indoor environments .
5.3 Strong Environmental Adaptability
This series of oil immersed distribution transformers has a wide working temperature range (-45℃ to +40℃) and can adapt to high temperature, low temperature, humid and other complex outdoor environments . The fully sealed tank body effectively prevents the invasion of rainwater, dust and corrosive gases, avoiding internal component aging and oil deterioration. The compact and robust structural design has strong seismic and wind resistance, suitable for pole-mounted and ground-mounted installation in urban and rural open-air environments, with low requirements for installation conditions .
5.4 Easy Installation and Low Maintenance
The 30KVA, 50KVA and 80KVA models are small in size and light in weight, with standardized interface design, which is convenient for rapid on-site installation and wiring . The fully sealed structure avoids frequent oil replacement and oil supplement work, and the internal components have high stability and long service life. Daily maintenance only needs regular oil level inspection and appearance cleaning, which greatly reduces later maintenance time and cost, and is suitable for popularization and application in various terminal power distribution scenarios .
5.5 Standardized and Customizable Design
All 10kV 400V Oil Immersed Distribution Transformer products are manufactured in strict accordance with international and national power industry standards, with unified technical parameters and dimensional standards, strong compatibility and interchangeability . On the basis of conventional 30KVA, 50KVA and 80KVA specifications, it can also carry out targeted optimization and customization according to user's special load, installation environment and grid requirements, meeting the personalized power distribution needs of different scenarios.
