Oil Immersed Transformer Electrical Transformer 50KVA 100KVA 3 Phase Transformer

Oil Immersed Transformer Electrical Transformer 50KVA 100KVA 3 Phase Transformer
1. Product Description
The Oil Immersed Transformer Electrical Transformer 50KVA 100KVA 3 Phase Transformer is a conventional low-capacity three-phase power conversion equipment widely used in civil, commercial and small industrial power distribution systems. Available in two mainstream rated capacities of 50KVA and 100KVA, this three-phase oil immersed electrical transformer is designed for 50Hz industrial power frequency operation, supporting customized high and low voltage matching for conventional power grid step-down and step-up working conditions.
This standard oil cooled power transformer adopts a classic two-winding structural design, equipped with high-purity copper coils and high-quality oriented silicon steel sheets as the core conductive and magnetic conductive materials. The whole machine features fully sealed oil tank packaging, with insulating oil serving as both heat dissipation and insulating medium. Different from dry-type transformers, this submerged oil transformer delivers better heat dissipation efficiency and stronger voltage withstand performance. Strictly manufactured in accordance with national and international electrical industry standards, every finished 50KVA and 100KVA three-phase oil immersed transformer undergoes strict no-load loss, load loss and insulation resistance testing to ensure stable and compliant operation in various conventional power supply environments.
2. Core Purpose
The core function of the 50KVA and 100KVA three-phase oil immersed electrical transformer is to realize safe and efficient voltage conversion in low-load power distribution networks. It mainly completes the step-down conversion of medium-voltage grid power to standard low-voltage power, providing compliant working voltage for terminal electrical equipment, and can also meet the step-up power supply demand of small decentralized power generation equipment in special scenarios.
As a low-capacity energy-saving power transformer, it focuses on balancing three-phase current and voltage in power supply lines, effectively solving the problems of unstable voltage and unbalanced load in small-area power supply systems. While completing power conversion, this oil immersed distribution transformer greatly reduces line transmission loss, improves the utilization rate of grid electric energy, and provides reliable high and low voltage electrical isolation. It can effectively block high-voltage surge impact, protect subsequent distribution lines, switchgear and terminal electrical equipment from breakdown damage, and ensure the safety and continuity of daily power supply.
3. Application Scenarios
50KVA and 100KVA three-phase oil immersed transformers are the most widely used small-capacity power transformation equipment in the power industry, with flexible application scenarios and strong environmental adaptability, covering civilian life, commercial supporting, small industrial production and temporary power supply fields.
In civil power distribution, this oil immersed electrical transformer is commonly used for rural power grid renovation, suburban village power supply, single residential community supporting power distribution and remote mountain area power supply projects, perfectly matching the low and stable power consumption demand of residential daily lighting, household electrical appliances and living facilities. In commercial scenarios, it is suitable for small shopping malls, community supermarkets, street shops, small office buildings and service venues, providing stable power guarantee for commercial lighting, office equipment and business electrical systems.
In the industrial field, the 100KVA three-phase oil cooled transformer is mostly used for small processing workshops, mechanical maintenance factories, small breeding plants and food processing workshops, adapting to the low-power continuous operation demand of small industrial equipment. In addition, this low-capacity submerged oil power transformer is also the preferred equipment for temporary power supply on construction sites, road reconstruction projects, landscape engineering and field operation sites. Its outdoor adaptable fully sealed structure can stably operate in open-air, humid and dusty complex environments.
4. Product Features
Stable Three-Phase Operation and Low Loss: This 3 phase oil immersed transformer adopts optimized magnetic circuit and winding layout design. The three-phase voltage and current balance degree is high, with extremely low no-load loss and no-load current. Compared with traditional old-fashioned transformers, the 50KVA and 100KVA models effectively reduce electric energy waste during long-term standby and operation, achieving excellent energy-saving effects and reducing daily power operation costs.
Excellent Heat Dissipation and Insulation Performance: Relying on high-purity insulating oil circulating heat dissipation, this oil cooled electrical transformer has uniform internal heat dissipation and strong overheating resistance. The high-quality insulating material and sealed oil tank structure maintain stable insulation performance for a long time, effectively preventing electric leakage, short circuit and breakdown faults, and greatly improving the overall operation safety of the equipment.
Strong Environmental Adaptability and Long Service Life: The whole machine adopts anti-corrosion paint treatment and fully sealed corrugated tank design, which can effectively resist external moisture, dust and mild chemical corrosion. It can work stably in the ambient temperature range of -25℃ to 45℃, adapting to both indoor distribution room installation and outdoor open-air installation. With reliable material quality and mature process, the service life of this low-capacity power transformer can reach more than 25 years.
Simple Operation and Low Maintenance Cost: The structural design of the 50KVA/100KVA three-phase oil immersed transformer is simple and mature, without complex auxiliary control components. The equipment runs automatically after power-on without manual real-time monitoring. The fully sealed structure avoids transformer oil oxidation and deterioration, realizing long-term maintenance-free operation in daily use, which greatly reduces later manual maintenance and equipment replacement costs.
High Cost Performance and Wide Compatibility: As mainstream conventional capacity models in low-capacity power transformers, 50KVA and 100KVA specifications match most small-area power supply scenarios. The equipment has strong grid compatibility, stable load resistance, low failure rate in long-term operation, and convenient after-sales maintenance and parts replacement, with extremely high practical value and cost performance in civil and small industrial power distribution projects.
5. FAQ (Frequently Asked Questions)
Q1: What is the main difference between 50KVA and 100KVA three-phase oil immersed transformers in actual use?
The core difference lies in the maximum bearable load capacity and applicable power supply scale. The 50KVA oil immersed transformer is suitable for ultra-small power supply scenarios such as single village groups, small shops and simple temporary construction sites with low total power consumption. The 100KVA three-phase electrical transformer has a larger rated capacity, which can bear higher simultaneous load, and is more suitable for small workshops, multi-storey community supporting power supply and medium-sized temporary engineering power supply. In terms of operation, the two models have consistent stability, heat dissipation performance and safety standards, with only differences in load upper limit and application scope.
Q2: Is regular oil replacement required for fully sealed oil immersed transformers?
Under normal operating conditions, the fully sealed 50KVA and 100KVA oil cooled power transformers do not need regular oil replacement. The closed corrugated oil tank completely isolates internal insulating oil from external air and moisture, avoiding oil aging, moisture absorption and deterioration. Users only need to conduct regular visual inspections every six months to check for oil leakage, shell deformation and abnormal temperature rise. Comprehensive oil quality testing and equipment debugging can be carried out every 3 to 5 years, which can fully meet long-term safe operation requirements.
Q3: Can this three-phase oil immersed transformer be installed and used outdoors in rainy and humid areas?
Yes, this submerged oil power transformer is fully adaptable to outdoor use in rainy and humid areas. The whole machine adopts fully sealed waterproof and anti-corrosion structure, and the internal insulating oil and winding components are completely isolated from the external humid air and rainwater. The surface anti-rust and anti-corrosion coating can resist long-term wind and rain erosion. It is worth noting that outdoor installation needs to reserve a safe heat dissipation space around the equipment, avoid long-term water accumulation at the bottom, and equip with simple sunshade and rainproof facilities to further extend the service life of the transformer.

