15KVA 32KVA 100KVA Oil Type Transformers Three Phase Transformer
1. Product Overview
The 15KVA 32KVA 100KVA Oil Type Transformers Three Phase Transformer series are reliable, cost-effective medium and small-capacity three-phase power conversion devices built for general power distribution, industrial equipment power supply, and utility grid auxiliary systems. Manufactured in full compliance with IEC 60076 international power equipment standards, these oil immersed three-phase transformers adopt classic oil-type cooling and insulation technology, covering three mainstream capacity grades of 15KVA, 32KVA and 100KVA to match light, medium and small centralized three-phase load demands. As essential low and medium voltage distribution equipment, they deliver stable step-up and step-down voltage conversion, effectively solving voltage mismatch and long-distance transmission voltage drop issues in three-phase AC power systems.
Different from single-phase power transformers, this three-phase oil type transformer series shares a unified magnetic circuit structure for three phases, featuring higher power transmission efficiency, more balanced load operation and lower unit operating cost. The 15KVA compact model suits ultra-light three-phase loads, the 32KVA specification is a universal mainstream model for civil and light industrial scenarios, and the 100KVA high-capacity version meets small-scale centralized three-phase power consumption. With fully sealed oil tank design, low operational loss and strong environmental adaptability, these industrial oil type three-phase transformers are widely used in urban and rural power grid renovation, small factory power supply, commercial facility distribution and temporary engineering power guarantee projects.
2. Core Product Features
2.1 Graded Capacity Design for Diversified Three-Phase Loads
This three phase oil type transformer series provides three precise capacity configurations to cover hierarchical power demand scenarios. The 15KVA three phase oil immersed transformer is lightweight and compact, specially designed for low-power three-phase equipment and scattered light-load power distribution, with low no-load loss and outstanding energy-saving performance. The 32KVA oil type three-phase transformer balances capacity, volume and cost perfectly, adapting to most conventional light industrial and commercial three-phase loads, and is the most cost-effective model in small-capacity power distribution fields. The upgraded 100KVA three-phase oil transformer enhances load-carrying capacity and overload resistance, stably supporting simultaneous operation of multiple three-phase mechanical equipment and centralized power loads, meeting small industrial park and regional centralized power supply needs.
2.2 Efficient Oil Immersed Cooling & Insulation Performance
Adopting mature oil-type heat dissipation and insulation technology, these three phase oil type transformers take high-purity mineral insulating oil as both cooling medium and insulating medium. The circulating oil flow quickly absorbs and dissipates heat generated by core and winding operation, realizing efficient temperature control even under continuous full-load and intermittent overload conditions. The fully sealed corrugated oil tank structure isolates internal components from external air, moisture and dust, preventing insulating oil aging, oxidation and moisture absorption. This design maintains stable insulation performance for a long time, avoids internal short-circuit and electric leakage faults, and greatly extends the service life of the three-phase distribution transformer.
2.3 Low-Loss Energy-Saving & Balanced Operation
Equipped with high-quality grain-oriented silicon steel core and high-purity copper windings, the 15KVA, 32KVA and 100KVA three phase oil immersed transformers effectively reduce no-load loss, load loss and magnetic leakage loss during operation. The optimized three-phase symmetrical winding structure ensures balanced voltage and current output of each phase, eliminating three-phase unbalanced load loss and power quality fluctuation common in inferior transformers. The overall power transmission efficiency is up to 99%, which significantly reduces long-term operating energy consumption and grid operation costs, fully meeting modern energy-saving and low-carbon power distribution standards.
2.4 Strong Environmental Adaptability & High Durability
Designed for both indoor and outdoor installation, this series of oil type three-phase transformers features anti-corrosion, anti-aging and weather-resistant shell treatment, adapting to complex operating environments such as high humidity, low temperature, dust and ultraviolet exposure. It can operate stably in the ambient temperature range of -25℃ to +40℃ and adapt to harsh outdoor working conditions that ordinary dry-type transformers cannot tolerate. The firm integrated mechanical structure provides excellent short-circuit withstand capability and vibration resistance, with low daily failure rate and minimal maintenance demand, realizing long-term unattended stable operation.
2.5 Complete Safety Protection & Wide Voltage Adaptability
These industrial three phase oil type transformers are equipped with multiple built-in safety mechanisms including over-current protection, over-temperature protection and short-circuit protection, which can quickly respond to grid surge, sudden load surge and circuit faults to ensure power grid and terminal equipment safety. The flexible voltage regulation design adapts to conventional medium and low voltage grid standards, supporting precise voltage step-down and step-up conversion. The standardized production process ensures stable output voltage with ultra-low deviation, effectively protecting three-phase motors, production lines and precision electrical equipment from damage caused by voltage instability.
3. Core Uses
The 15KVA 32KVA 100KVA Three Phase Oil Type Transformer focuses on three-phase AC power voltage conversion, power distribution optimization and power quality stabilization in medium and small power systems. Its core function is to convert high-voltage grid power into standard low-voltage three-phase power suitable for industrial, commercial and civil three-phase equipment, solving the voltage level mismatch between power transmission lines and terminal loads.
In actual power system operation, this oil immersed three-phase transformer stabilizes terminal output voltage, suppresses grid voltage fluctuation and harmonic interference, and reduces power transmission loss during medium and short-distance power distribution. It undertakes classified power supply tasks according to different capacities: the 15KVA model provides stable power for low-power three-phase auxiliary equipment, the 32KVA specification supports conventional light industrial and commercial three-phase load operation, and the 100KVA model is responsible for small-scale centralized three-phase power distribution. In addition, it can also be used for voltage matching and power stabilization of distributed new energy systems, temporary power engineering and rural grid upgrading, improving the overall reliability and energy utilization rate of regional three-phase power grids.
4. Main Application Scenarios
4.1 Urban & Rural Three-Phase Power Grid Construction
This series of three phase oil type transformers is widely used in rural power grid upgrading, township power distribution stations and urban community auxiliary power distribution projects. Many rural and suburban areas adopt three-phase power supply for industrial and household integrated loads, and the 15KVA and 32KVA models perfectly match scattered small three-phase load demands. The 100KVA three-phase oil immersed transformer is applied to rural centralized industrial zones and township core power supply areas, effectively solving peak voltage drop and insufficient power supply capacity of old power grids.
4.2 Light Industrial & Small Factory Power Supply
It is the preferred power distribution equipment for small processing factories, machinery workshops, food processing plants and light industrial production lines. Industrial three-phase equipment such as motors, conveyor lines and processing machinery requires balanced and stable three-phase voltage. The 32KVA and 100KVA oil type three-phase transformers can continuously provide standard three-phase low-voltage power, adapt to frequent load changes in industrial production, ensure stable operation of production equipment, and avoid production shutdown caused by power quality problems.
4.3 Commercial & Public Facility Power Distribution
Suitable for shopping malls, office buildings, schools, hospitals and other public and commercial buildings with three-phase power loads. Centralized air conditioning systems, elevator equipment and power distribution cabinets in commercial facilities all rely on stable three-phase power supply. This low-loss three phase oil immersed transformer series provides reliable voltage stabilization and power conversion, ensuring safe and continuous operation of public facility electrical systems and reducing daily power consumption loss.
4.4 Outdoor Temporary Engineering Power Guarantee
Thanks to flexible installation, strong environmental adaptability and diversified capacity options, these three phase oil type transformers are widely used for temporary power supply of construction sites, road and bridge engineering, field infrastructure and outdoor mechanical equipment. Users can select 15KVA, 32KVA or 100KVA models according to engineering load scale to quickly build stable three-phase power distribution systems, meeting the power demand of field construction machinery and temporary electrical equipment.
4.5 Distributed New Energy Supporting Projects
Matched with small and medium-sized distributed photovoltaic power stations, micro wind power generation systems and rural energy storage power supply projects, the three-phase oil type transformer realizes voltage matching and grid-connected power regulation. It stabilizes fluctuating voltage generated by new energy equipment, converts it into standard grid-connected voltage, reduces new energy power transmission loss, and improves the power utilization efficiency and grid-connected stability of small-scale new energy projects.
5. Frequently Asked Questions (FAQ)
5.1 How to choose between 15KVA, 32KVA and 100KVA three phase oil type transformers?
Capacity selection depends on actual three-phase load power and application scenarios. The 15KVA three phase oil immersed transformer is suitable for ultra-light load scenarios such as small auxiliary three-phase equipment, micro temporary engineering power supply and low-power public facility power distribution. The 32KVA oil type three-phase transformer is the most universal model, ideal for small workshops, ordinary commercial facilities and conventional rural three-phase power supply. The 100KVA three-phase oil transformer is designed for medium-load scenarios including small industrial factories, centralized township power supply and medium-scale new energy supporting projects. It is recommended to reserve 10%-20% load margin to avoid long-term full-load operation and extend equipment service life.
5.2 What are the advantages of three phase oil type transformers compared with single-phase transformers?
Three phase oil type transformers have obvious comprehensive advantages in three-phase load power distribution. Firstly, the three-phase symmetrical structure ensures balanced current and voltage output, no phase unbalance loss, and higher power supply stability, which is irreplaceable for three-phase motor and mechanical equipment power supply. Secondly, the shared magnetic circuit design reduces unit manufacturing cost and power transmission loss, with higher overall efficiency than three sets of single-phase transformers used in combination. In addition, this oil immersed three-phase transformer series has stronger overload capacity, better short-circuit resistance and wider environmental adaptability, making it more suitable for industrial and centralized power distribution scenarios than ordinary single-phase transformers.
5.3 What are the daily maintenance requirements for oil type three phase transformers?
The 15KVA/32KVA/100KVA three phase oil immersed transformers feature low maintenance design, but regular daily inspection is required for long-term stable operation. Users need to regularly check the sealing performance of the oil tank to avoid oil leakage, observe the color and quality of insulating oil, and replace aging insulating oil in time. It is necessary to keep the equipment surface clean and the surrounding ventilation smooth, avoid long-term overload operation and severe corrosive environment. Regularly detect winding insulation performance and operating temperature, eliminate hidden dangers such as loose line connections. Standard daily maintenance can effectively reduce failure rate and extend the service life of the oil type three-phase power transformer.
