10kv 220v Three Phase Oil Immersed Transformers

10kv 220v Three Phase Oil Immersed Transformers

1. Complete Technical Parameter Specifications

Below are the standardized factory-tested technical parameters for 10kv 220v three phase oil immersed transformers. All performance indicators comply with IEC 60076, GB/T 6451 and international industrial electrical standards, covering electrical performance, structural configuration, loss data, insulation grade and operating conditions. These practical parameters support accurate model selection, on-site installation, grid commissioning and routine maintenance for customized medium-to-low voltage industrial power distribution projects.

2. Product Description

10kv 220v Three Phase Oil Immersed Transformers are customized low-loss medium-voltage step-down power transformers designed for special industrial low-voltage power supply requirements. Different from conventional 10kV/400V general distribution transformers, this three-phase oil filled transformer features a professional 220V three-phase low-voltage output, accurately converting 10kV medium-voltage overhead line power into standard 220V industrial three-phase power. It fills the market gap of special voltage-grade power transformation equipment and solves the voltage mismatch problem for specialized industrial production and mechanical power supply scenarios.

Adopting upgraded S13/S20 low-loss manufacturing technology, this custom oil immersed power transformer is equipped with high-quality low-loss silicon steel core and high-conductivity oxygen-free copper windings. The optimized core lamination and precision winding layout effectively suppress magnetic flux leakage, greatly reducing no-load loss and load operating loss during long-term continuous operation. The fully sealed corrugated oil tank structure eliminates the need for an oil conservator, automatically adapting to insulating oil volume changes caused by temperature fluctuations, and completely isolating internal oil from external air to prevent oil aging, moisture intrusion and dust accumulation.

Configured with a standard 5-position no-load tap changer, this 10kV three-phase step-down transformer supports flexible voltage calibration to cope with regional grid voltage deviations and seasonal load fluctuations, ensuring stable and accurate 220V three-phase output. All finished industrial distribution transformers undergo rigorous factory testing including insulation resistance detection, power frequency withstand voltage test, short-circuit impact test and temperature rise test. With stable operational performance, low running noise, strong environmental adaptability and ultra-low failure rate, this customized oil immersed transformer is the ideal power conversion solution for special industrial equipment matching and non-standard power grid renovation projects.

3. Core Product Features

3.1 Customized 220V Three-phase Stable Output

Tailored for 10kV to 220V voltage conversion, this three phase oil immersed transformer delivers pure and balanced three-phase 220V voltage output, perfectly matching special industrial equipment that cannot adapt to conventional 400V power supply. The professional Dyn11 wiring structure effectively suppresses grid harmonic interference and eliminates three-phase current unbalance, ensuring stable voltage supply for precision mechanical equipment, automated production lines and special electrical devices without voltage fluctuation or power jitter.

3.2 Ultra-low Energy Consumption & High Efficiency

Equipped with high-permeability oriented silicon steel core and high-purity copper coils, this 10kV custom distribution transformer achieves far lower power loss than traditional old-fashioned transformers, meeting international high energy efficiency standards. Whether in long-term standby state or full-load continuous operation, it maintains low power consumption, effectively reducing grid transmission loss and daily operating electricity costs for industrial enterprises. The energy-saving design brings significant long-term economic benefits for factory continuous production and long-cycle power supply scenarios.

3.3 Fully Sealed Maintenance-free Structure

The integrated fully sealed corrugated oil tank structure realizes completely closed operation, avoiding insulating oil oxidation, deterioration and moisture absorption. There is no need for regular oil replacement and frequent routine maintenance required by traditional open-type transformers. The elastic deformation of the corrugated tank automatically compensates oil volume expansion and contraction caused by temperature changes, ensuring long-term stable internal insulation and heat dissipation performance, greatly reducing later operation and maintenance workload and equipment management costs.

3.4 Excellent Environmental Adaptability & High Safety

With AC35kV high-grade insulation performance and strong lightning impulse resistance, this 10kv 220v three phase oil immersed transformer can effectively resist grid surge, short-circuit faults and lightning strike interference. The anti-corrosion and weather-resistant tank shell adapts to indoor distribution room placement and outdoor open-air installation, operating stably in complex environments with temperatures ranging from -25℃ to +40℃. It features waterproof, dust-proof and anti-aging properties, with strong tolerance to harsh industrial working conditions such as dust and humidity.

3.5 Flexible Installation & Wide Compatibility

The compact and streamlined overall structure saves installation space and supports flexible floor-mounted and platform-mounted installation. It is compatible with 50Hz and 60Hz global power frequency standards, meeting the power supply requirements of domestic and overseas special industrial projects. The reserved standard wiring interface simplifies on-site construction and wiring work, shortening project deployment cycle and improving overall engineering construction efficiency.

4. Core Purpose & Application Scenarios

4.1 Core Purpose

The core function of 10kv 220v Three Phase Oil Immersed Transformers is to complete safe, efficient and stable step-down conversion from 10kV medium-voltage grid power to customized 220V three-phase low-voltage power. As a professional special voltage power distribution device, it solves the voltage adaptation problem of special industrial electrical equipment that cannot use conventional 400V power supply. It undertakes terminal power transformation, voltage stabilization, electrical isolation and loss reduction power transmission tasks in customized industrial power supply systems, ensuring safe and reliable operation of special production equipment.

4.2 Typical Application Scenarios

Special Industrial Equipment Supporting: Widely used for power matching of imported precision machinery, special automation equipment, industrial testing instruments and customized production lines that require 220V three-phase power supply. It provides standardized and stable power guarantee for high-precision industrial production and experimental testing work.

Small Factory Customized Power Distribution: Ideal for small processing workshops, handicraft factories, light industrial production bases and mini manufacturing enterprises with special voltage requirements. It solves the problem of mismatched grid voltage and equipment voltage, avoiding equipment failure and production shutdown caused by inconsistent power supply specifications.

Overseas Special Standard Power Projects: Suitable for overseas regional industrial projects and power grid renovation with 220V three-phase power supply standards. The dual-frequency compatibility and customized voltage output meet the special power demand of non-standard power grid systems in different regions, supporting localized industrial construction and production.

Laboratory & Research Institution Power Supply: Applied for university laboratories, industrial research institutes and precision detection centers. The stable low-fluctuation voltage output protects precision experimental equipment and testing instruments from damage caused by unstable power supply, ensuring accurate experimental data and normal research work.

Renewable Energy Auxiliary Power Matching: Matches small distributed photovoltaic power generation and wind power generation systems, completing customized voltage conversion for new energy power grid connection. It optimizes new energy power utilization efficiency and solves the problem of unstable voltage output of small new energy power stations.

5. FAQ (Frequently Asked Questions)

5.1 What is the key difference between a 10kV/220V and conventional 10kV/400V oil immersed transformer?

The core difference lies in low-voltage output specification and application positioning. Conventional 10kV/400V three-phase transformers are universal power distribution equipment for most industrial and civil scenarios, while the 10kv 220v three phase oil immersed transformer is a professional customized model for special equipment with 220V three-phase power demand. In terms of structural performance, both adopt the same low-loss energy-saving structure and high safety standards, with consistent stability and service life. Users must select the model strictly according to the actual input voltage requirements of terminal equipment to avoid voltage mismatch leading to equipment burnout or abnormal operation.

5.2 Is the customized 220V three-phase oil immersed transformer suitable for long-term outdoor operation?

Yes, this custom medium-voltage distribution transformer is fully adaptable to long-term outdoor all-weather operation. It adopts a fully sealed corrugated oil tank structure with excellent waterproof, dust-proof, anti-corrosion and anti-ultraviolet aging capabilities. The ONAN natural oil cooling system supports 24-hour uninterrupted continuous operation without auxiliary cooling equipment. It can operate stably in the temperature range of -25℃ to +40℃, resisting wind, rain and temperature changes in outdoor open environments, making it applicable for outdoor substation installation and field industrial power supply scenarios.

5.3 What daily maintenance does this low-loss customized 10kV 220V transformer require?

This fully sealed oil immersed transformer features maintenance-free daily operation with extremely low after-sales maintenance pressure. Daily management only requires regular visual inspection to check for tank oil leakage, shell rust and loose high-low voltage wiring terminals, and keep the surrounding heat dissipation area unobstructed. It is recommended to test insulating oil dielectric strength and insulation resistance every 3 years, and conduct a comprehensive electrical performance overhaul every 5 years. Avoid long-term overload operation and operation beyond rated temperature and altitude limits, which can effectively maintain 30-year stable service life and safe operation of the equipment.