1000 Kva 1500kva 3 Phase S11 Oil Immersed Distribution Transformer
1. Product Overview
The 1000 KVA and 1500 KVA 3 Phase S11 Oil Immersed Distribution Transformer is a high-efficiency, energy-saving medium-low voltage power distribution equipment compliant with international power industry standards. As an upgraded version of traditional S9 series transformers, this sealed oil-immersed distribution transformer adopts advanced cold-rolled grain-oriented silicon steel sheet core technology and fully sealed corrugated oil tank structure, effectively optimizing electromagnetic performance and overall operational stability. Designed for 3-phase AC power transmission and voltage conversion, the 1000KVA and 1500KVA capacity models are the most widely used specifications in urban and rural power grid renovation, industrial power supply and commercial power distribution projects. This low-loss oil immersed power transformer features stable output, low noise, strong overload capacity and long service life, perfectly adapting to continuous and stable power supply demands of various complex power consumption scenarios.
This three-phase distribution transformer supports standard 10kV input voltage and 0.4kV output voltage, with optional non-excitation voltage regulation of ±5% or ±2×2.5%, which can automatically adapt to grid voltage fluctuations. Adopting ONAN oil natural circulation cooling mode and high-purity insulating oil for heat dissipation and insulation protection, the S11 series sealed transformer effectively avoids insulation aging caused by air and moisture erosion, realizing long-term maintenance-free operation. It is a core energy-saving power equipment for modern power distribution systems, industrial and mining enterprises, residential communities and commercial complexes.
2. Core Product Features
2.1 Ultra-Low Energy Consumption & High Efficiency
The 1000 KVA and 1500 KVA 3 Phase S11 Oil Immersed Distribution Transformer adopts high-quality high-permeability cold-rolled silicon steel sheets and optimized three-dimensional magnetic circuit design, which greatly reduces no-load loss, load loss and excitation current compared with traditional transformer products. The no-load loss is significantly lower than S9 series products, fully meeting national and international energy efficiency standards for power distribution equipment. As a typical energy-saving oil immersed transformer, it can effectively reduce long-term power operation consumption and save electricity costs for power grid operation and enterprise power consumption, making it an ideal choice for energy-saving renovation of power systems.
2.2 Fully Sealed Anti-Aging Structure
Different from traditional conservator-type transformers, this S11 oil immersed distribution transformer adopts an integral fully sealed corrugated oil tank structure. The elastic corrugated sheet can expand and contract synchronously with the temperature change of internal insulating oil, completely isolating the insulating oil from external air and moisture. This structural design effectively prevents oil oxidation, insulation layer dampness and aging failure, avoids the generation of internal impurities, and greatly extends the service life of the transformer. The whole machine has good dustproof, waterproof and anti-corrosion performance, adapting to outdoor open-air operation and harsh industrial environment operation.
2.3 Excellent Electrical Performance & Strong Safety
The high and low voltage windings of the 1000KVA and 1500KVA three-phase oil immersed transformer are wound with high-purity oxygen-free copper wires, adopting a multi-layer cylindrical winding structure with uniform stress and good concentricity. The precision winding process enhances the short-circuit resistance and impact resistance of the transformer, effectively avoiding winding deformation and burnout caused by sudden grid short circuit and overload. The product passes strict power frequency withstand voltage and lightning impulse tests, with stable insulation performance and high operation safety factor. All structural fasteners are specially treated for anti-loosening and anti-rust, ensuring stable long-term operation of the equipment.
2.4 Low Noise & Stable Operation
Through optimized core lamination process and vibration reduction structural design, the S11 low-loss distribution transformer effectively suppresses electromagnetic vibration and operating noise during equipment operation. The operating noise is far lower than the industry standard, meeting the noise control requirements of residential areas, commercial districts and urban public facilities. The equipment has strong overload operation capacity, can operate stably for a long time under rated load, and can adapt to short-term peak load impact without abnormal temperature rise and performance attenuation.
2.5 Maintenance-Free & Wide Adaptability
Thanks to the fully sealed structural design, the internal insulating oil does not need regular replacement and oil replenishment, realizing long-term maintenance-free operation, greatly reducing later operation and maintenance costs and manual investment. The equipment can adapt to 50Hz/60Hz power frequency, supports Yyn0 and Dyn11 wiring groups, and can be flexibly matched with different grid operation modes and power supply requirements. The compact overall structure saves installation space, and the outdoor installation type does not need special computer room, with low installation cost and strong environmental adaptability.
3. Core Functions & Working Principle
The core function of the 1000 KVA & 1500 KVA 3 Phase S11 Oil Immersed Distribution Transformer is to realize voltage step-down and step-up conversion and power distribution transmission in medium and low voltage power grids. Based on the electromagnetic induction principle, the transformer converts 10kV high-voltage industrial power into 0.4kV low-voltage civil and industrial power, realizing safe, stable and efficient power transmission and distribution. As a key equipment of power distribution network, it undertakes the core tasks of grid voltage regulation, power flow distribution and power supply stability maintenance.
This medium voltage oil immersed distribution transformer has reliable voltage regulation performance. The non-excitation voltage regulation device can adjust the voltage ratio according to the actual grid voltage condition, effectively solving the problem of unstable terminal voltage caused by grid load change and line loss. It ensures that the output voltage of electrical equipment is within the standard range, protects industrial production equipment, household electrical appliances and public power facilities from voltage fluctuation damage, and improves the overall power supply quality of the power system. In addition, the product has good overload and fault tolerance, which can effectively resist sudden grid faults and ensure continuous power supply for key loads.
4. Wide Application Scenarios
4.1 Urban & Rural Power Grid Renovation
The 1000KVA and 1500KVA S11 sealed oil immersed transformers are core supporting equipment for urban and rural low-voltage power grid construction and renovation. They are widely installed in urban community power distribution stations, rural centralized power supply points and street power distribution box areas, solving the problems of insufficient power supply capacity and unstable voltage in old power grids, and meeting the daily power consumption needs of residential lighting, household electrical appliances and community public facilities.
4.2 Industrial & Mining Enterprise Power Supply
Suitable for medium and large industrial factories, mining enterprises, processing plants and manufacturing workshops, this three-phase oil immersed distribution transformer provides stable power support for industrial production equipment, mechanical operation and factory auxiliary facilities. The 1000KVA and 1500KVA moderate capacity perfectly matches the power demand of small and medium-sized industrial enterprises, and its strong overload and anti-interference ability can adapt to the unstable load characteristics of industrial production, ensuring continuous and safe production power supply.
4.3 Commercial & Public Facility Power Distribution
It is widely used in shopping malls, commercial plazas, office buildings, hotels, schools, hospitals and other commercial and public buildings. The low-noise and high-stability performance of the S11 low-loss transformer can meet the high requirements of public places for power supply stability and environmental noise. It can stably supply power for central air conditioning, lighting systems, elevator equipment and office electrical facilities, ensuring the normal operation of commercial and public service scenarios.
4.4 New Energy & Special Engineering Projects
The equipment is also applicable to photovoltaic power stations, wind power supporting power distribution systems, highway engineering, railway stations, airport supporting facilities and outdoor engineering projects. Its fully sealed waterproof and anti-corrosion structure can adapt to outdoor open-air, high humidity and multi-dust harsh environments. In addition, it can be used for power supply support of temporary engineering projects and remote regional power distribution, with extremely high scene adaptability.
5. Frequently Asked Questions (FAQ)
Q1: What is the difference between 1000KVA and 1500KVA S11 oil immersed transformers in practical application?
The core difference lies in the rated power supply capacity and applicable load range. The 1000KVA 3 Phase S11 Oil Immersed Distribution Transformer is suitable for scenarios with medium power demand such as ordinary residential communities, small commercial streets and small processing factories. The 1500KVA model has larger load carrying capacity, which is more suitable for medium-sized industrial enterprises, large commercial complexes and multi-building community centralized power supply scenarios. In terms of performance parameters such as loss and noise, the two models adopt the same S11 series core technology and structural design, with consistent energy-saving effect, safety performance and service life, and users can select the model according to the actual peak load demand of the scene.
Q2: How long is the service life of S11 fully sealed oil immersed distribution transformer, and does it require daily maintenance?
The design service life of standard 1000KVA and 1500KVA S11 oil immersed transformers can reach 20-30 years under normal operating conditions. Benefiting from the fully sealed corrugated oil tank structure, the internal insulating oil is completely isolated from the outside world, avoiding oxidation and damp failure. The equipment basically realizes maintenance-free operation in daily use, without regular oil replacement, oil replenishment and internal cleaning. Users only need to regularly check the external operation status, temperature and wiring tightness of the transformer, which greatly reduces the later operation and maintenance cost and workload.
Q3: What are the environmental and installation requirements for this three-phase oil immersed transformer?
This S11 low-loss oil immersed distribution transformer supports outdoor and indoor installation. The outdoor installation environment only needs to avoid long-term immersion and severe corrosive gas erosion, and the self-corrosion and waterproof structure can adapt to most outdoor natural environments. For indoor installation, it is necessary to ensure good ventilation and heat dissipation space to avoid excessive ambient temperature affecting the heat dissipation effect. The equipment can operate stably in the temperature range of -20℃ to +40℃, adapting to most regional climatic conditions. In addition, the equipment has low operating noise and no environmental pollution, meeting the environmental protection assessment requirements of urban areas, residential areas and industrial parks.
