100kva 125kva 160kva 6kv 6.3kv 0.48kv Oil Immersed Transformer
100kva 125kva 160kva 6kv 6.3kv 0.48kv Oil Immersed Transformer
1. Product Description
The 100kva, 125kva and 160kva 6kv/6.3kv to 0.48kv Oil Immersed Transformer is a practical medium-voltage three-phase distribution transformer tailored for industrial and municipal power distribution systems. This mid-capacity oil-filled power transformer features dual high voltage input options of 6kv and 6.3kv, paired with a standard 0.48kv low voltage output, perfectly matching specialized industrial power supply standards that differ from conventional 0.4kv civilian voltage systems. Manufactured with industry-standard low-loss grain-oriented silicon steel core and high-purity copper windings, this 6kv class oil immersed distribution transformer delivers stable voltage conversion performance for 50Hz AC power grids, covering the most commonly used capacity grades for small and medium industrial load scenarios.
Built with a fully sealed corrugated oil tank and vacuum oil injection process, this 6.3kv industrial transformer adopts proven ONAN oil natural air natural cooling technology. The high-purity internal insulating oil serves dual purposes of electrical insulation and circulating heat dissipation, effectively stabilizing internal operating temperature and preventing insulation aging under continuous working conditions. Available in three mainstream rated capacities including 100kva, 125kva and 160kva, the equipment offers flexible load matching options for different power consumption demands. Every unit undergoes strict factory testing for voltage ratio accuracy, short-circuit resistance and dielectric strength, ensuring consistent and reliable performance for outdoor and indoor medium-voltage power distribution projects.
2. Core Uses
This multi-capacity oil immersed transformer focuses on precise medium-to-low voltage step-down conversion for 6kv and 6.3kv industrial power grids, serving as the core power transformation equipment for special 0.48kv low-voltage power systems. Its primary core function is to convert 6kv or 6.3kv medium-voltage industrial grid power into stable 0.48kv three-phase power, meeting the dedicated voltage requirements of special industrial mechanical equipment that cannot adapt to conventional 0.4kv power supply. It effectively solves the problems of voltage mismatch, equipment failure and low power utilization rate caused by mismatched standard transformers in industrial production scenarios.
Beyond basic voltage stepping, the 100kva to 160kva oil immersed power transformer undertakes key grid operation tasks such as load balancing, power quality stabilization and line loss reduction. It can effectively buffer voltage fluctuations and instantaneous current surges during industrial equipment startup and operation, maintaining balanced three-phase voltage and current output. The low-loss structural design minimizes no-load and load operation losses during long-term continuous operation, improving the overall power supply efficiency of industrial power distribution lines. It also provides reliable overvoltage and overcurrent protection for terminal electrical equipment, ensuring safe and stable power operation of the entire distribution system.
3. Application Scenarios
3.1 Small and Medium Industrial Factory Power Distribution
This 6kv/6.3kv to 0.48kv oil immersed transformer is widely deployed in machinery processing factories, textile plants, food processing workshops and light industrial manufacturing bases. Many precision industrial motors, transmission equipment and automated production lines are designed for 0.48kv rated voltage, making this multi-capacity transformer the ideal power conversion solution. The 100kva model suits small workshops with stable low loads, the 125kva version fits medium-scale production lines with slight load fluctuations, and the 160kva high-capacity model meets the power demand of integrated processing workshops with multiple sets of equipment operating simultaneously.
3.2 Industrial Park Zonal Power Supply
In standardized industrial parks and industrial gathering zones that adopt 6kv and 6.3kv medium-voltage grid access, this series of oil immersed distribution transformers is commonly used for partition power distribution. Different from public civil power grids, industrial park dedicated power lines adopt 0.48kv low-voltage output standards to adapt to centralized industrial equipment power consumption. The fully sealed outdoor structure can adapt to open-air substation installation in industrial parks, resisting dust, humidity and variable temperature environments, and supporting long-term unattended continuous power supply for park industrial facilities.
3.3 Mining and Field Engineering Power Supply
It is well applicable for field mining operations, road construction engineering, water conservancy projects and remote field operation scenarios. Field engineering equipment such as mining machinery, drilling equipment and construction motors usually adopts customized 0.48kv voltage standards, while the on-site power grid mostly accesses 6kv or 6.3kv medium voltage. The 100kva–160kva oil immersed transformer features compact structure, strong environmental adaptability and convenient on-site installation, which can stably convert grid voltage to match field equipment power demand and ensure the smooth progress of field engineering construction.
3.4 Rural and Township Industrial Upgrading Projects
With the upgrading of township industrial economies, many rural small factories and processing workshops have replaced traditional civil power with dedicated 6kv/6.3kv industrial power grids and 0.48kv equipment power supply. This cost-effective multi-capacity oil immersed transformer perfectly matches the load scale of township small and medium-sized enterprises. It can effectively reduce industrial power supply line loss, improve power supply stability, and adapt to the decentralized layout and long-term stable operation needs of township industrial projects.
4. Product Features
4.1 Special 6kv/6.3kv to 0.48kv Voltage Matching
Different from conventional 0.4kv output distribution transformers, this industrial oil immersed transformer adopts a dedicated 0.48kv low-voltage output design, which is specially optimized for special industrial equipment voltage standards. It supports dual 6kv and 6.3kv medium-voltage input adaptation, covering two mainstream industrial medium-voltage grid specifications. The voltage conversion accuracy is high with tiny output fluctuation, completely solving the equipment operation instability caused by voltage mismatch, and realizing one-to-one precise matching for special industrial power supply scenarios.
4.2 Graded 100kva/125kva/160kva Capacity Coverage
The product covers three practical mid-range capacity grades, forming a complete load matching system for small and medium industrial scenarios. Users can flexibly select 100kva, 125kva or 160kva models according to actual equipment quantity and peak power consumption load, effectively avoiding energy waste from oversized capacity or equipment overload risks from insufficient capacity. All capacity specifications maintain consistent structural standards and performance parameters, with strong versatility and interchangeability for project matching and later equipment replacement.
4.3 Low-Loss Energy-Saving & Stable Operation Performance
Adopting high-quality low-loss silicon steel core and high-conductivity oxygen-free copper winding, the transformer optimizes internal magnetic circuit and winding layout, greatly reducing no-load loss and load loss during operation. Compared with old-fashioned transformers of the same capacity, it features lower operating heat generation and higher power transmission efficiency. Even under long-term continuous operation and frequent equipment start-stop load fluctuations, it can maintain stable working performance without obvious efficiency attenuation, effectively reducing long-term industrial power consumption costs.
4.4 Fully Sealed Maintenance-Free Oil Immersed Structure
The integral fully sealed corrugated oil tank design eliminates the traditional oil conservator structure, completely isolating internal insulating oil from external air, dust and moisture. It prevents oil oxidation, emulsification and insulation aging, realizing long-term maintenance-free operation. The professional vacuum drying and vacuum oil injection process removes internal moisture and impurities, ensuring stable insulation performance and heat dissipation effect for years. Daily operation only requires simple external inspection, greatly reducing enterprise equipment maintenance workload and operating costs.
4.5 Strong Environmental Adaptability & Wide Applicability
The whole machine undergoes anti-corrosion, rust-proof and weather-resistant treatment, adapting to indoor workshop and outdoor open-air substation installation environments. It can operate stably in high temperature, low temperature, humid and dusty industrial working conditions. The ONAN natural cooling system has reliable heat dissipation performance, with strong short-term overload resistance to cope with peak load impact in industrial production. The compact and lightweight structure simplifies transportation and installation, suitable for various complex industrial and field engineering application environments.
5. Frequently Asked Questions (FAQ)
5.1 What is the difference between 0.48kv output transformer and conventional 0.4kv transformer?
The core difference lies in the terminal voltage adaptation scenario. Conventional 0.4kv oil immersed transformers are mainly used for civilian and ordinary commercial power supply, while this 6kv/6.3kv 0.48kv transformer is professionally customized for special industrial equipment. Many industrial motors, automated production lines and field engineering devices are designed with 0.48kv rated working voltage. Using a 0.4kv transformer will cause low voltage, insufficient equipment power and frequent startup failures, while the 0.48kv output model can perfectly match industrial equipment parameters and ensure full-load stable operation of mechanical devices.
5.2 How to choose among 100kva, 125kva and 160kva capacity models?
Capacity selection depends on actual total power load and future expansion demand. The 100kva model is suitable for single small workshops, independent small processing equipment and scenarios with stable and low power consumption. The 125kva version is the most cost-effective choice for medium-sized workshops with multiple sets of conventional equipment and occasional load fluctuations. The 160kva high-capacity model is recommended for integrated processing workshops, industrial partition power supply and scenarios with frequent peak power consumption and reserved power expansion space, which can effectively avoid long-term overload operation of the transformer.
5.3 Can this transformer adapt to both 6kv and 6.3kv medium voltage grids?
Yes, this series of oil immersed transformers supports dual 6kv and 6.3kv industrial medium-voltage grid adaptation. The internal winding insulation structure and voltage ratio parameters are calibrated for these two mainstream industrial voltage grades, enabling direct grid connection without parameter modification or accessory replacement. Whether it is a 6kv conventional industrial power grid or a 6.3kv special industrial distribution line, it can achieve accurate voltage conversion to stable 0.48kv low voltage, with strong grid compatibility and wide industrial application scope.
