3 Phase 10kv 400v Step Up Transformer Electricity 30kva 50kva 80kva 100kva 10kv Class Oil Immersed
3 Phase 10kv 400v Step Up Transformer Electricity 30kva 50kva 80kva 100kva 10kv Class Oil Immersed Transformer
1. Product Description
The 3 Phase 10kv 400v Step Up Transformer Electricity 30kva 50kva 80kva 100kva 10kv Class Oil Immersed Transformer is a professional three-phase step-up power conversion equipment belonging to the standard 10kV class oil immersed transformer series. This low and medium capacity power transformer covers four common rated capacity specifications: 30kVA, 50kVA, 80kVA and 100kVA, focusing on bidirectional and fixed step-up voltage conversion between 400V low-voltage electricity and 10kV medium-voltage power. Manufactured in strict accordance with GB/T 6451, IEC and international electrical industry standards, this oil-filled step-up transformer adopts mature industrial manufacturing technology, suitable for 50Hz and 60Hz conventional power grid systems, and is widely recognized as a reliable small and medium-sized power boosting device in civil, industrial and new energy power distribution fields.
Built with high-quality grain-oriented cold-rolled silicon steel core and high-insulation copper winding, the 10kV class three-phase oil immersed step-up transformer features low no-load loss, low operating noise and stable electromagnetic performance. It adopts classic ONAN oil natural air natural cooling mode and fully sealed welded tank structure, with high-purity insulating oil sealed inside to undertake dual functions of electrical insulation and circulating heat dissipation. Different from conventional step-down distribution transformers, this customized 400V to 10kV step-up transformer is professionally optimized for low-voltage to medium-voltage power boosting scenarios, with accurate voltage ratio control, strong anti-interference ability and stable output performance. All capacity models including 30kVA, 50kVA, 80kVA and 100kVA adopt standardized modular design, ensuring consistent product quality, installation dimensions and operational stability, and supporting long-term continuous running in various conventional outdoor and indoor power supply environments.
2. Core Purpose
The core purpose of the 10kV class 3-phase oil immersed step up transformer is to solve the voltage grade mismatch problem in low-voltage power generation and local power grid connection scenarios, realizing safe, stable and efficient power boosting from 400V low-voltage electric energy to 10kV medium-voltage grid standard electricity. As a key power boosting hub device, it converts scattered low-voltage power into compliant 10kV high-grade power, meeting the technical requirements of medium-voltage power grid transmission, regional power supplement and distributed power grid connection. The multi-capacity design of 30kVA to 100kVA allows flexible matching of different power generation and load scales, avoiding equipment capacity waste or insufficient power boosting margin.
In actual power system operation, this 400V to 10kV step up oil immersed transformer also undertakes core functions of power quality optimization and line loss control. It can stabilize low-voltage power fluctuation generated by distributed power equipment, balance three-phase current output, and reduce harmonic interference during power boosting transmission. For off-grid power supply areas and decentralized power generation projects, it effectively improves power utilization efficiency and realizes effective collection and re-transmission of scattered electric energy. Meanwhile, the oil immersed fully sealed structure ensures long-term trouble-free step-up operation, reduces manual maintenance frequency, and provides stable and reliable medium-voltage power support for regional power grid capacity expansion and power supplement work.
3. Application Scenarios
3.1 Distributed New Energy Power Grid Connection
This 3 Phase 10kv 400v Step Up Oil Immersed Transformer is the most widely used core equipment for small and medium-sized distributed photovoltaic power stations, household wind power systems and micro energy storage power generation projects. Most new energy power generation equipment outputs standard 400V three-phase low-voltage electricity, which cannot be directly connected to 10kV municipal medium-voltage power grids. The 30kVA, 50kVA, 80kVA and 100kVA multi-capacity models can accurately match the power generation scale of small new energy projects, stably boosting 400V low-voltage power to 10kV grid voltage, realizing safe grid-connected power transmission and effective power resource recycling.
3.2 Remote Area Off-Grid Power Supply
It is perfectly applicable to remote mountainous areas, rural scattered settlements, field construction sites and island off-grid power supply scenarios. These areas lack complete medium-voltage power grid coverage, and mostly rely on diesel generators and small power generation equipment to output 400V low-voltage power. This 10kV class step-up transformer can boost low-voltage electric energy to 10kV medium voltage for long-distance transmission, solving the problem of large loss and short transmission distance of 400V low-voltage power supply, realizing centralized power distribution of remote regional power sources, and improving the coverage and stability of off-grid power supply.
3.3 Small Industrial and Commercial Power Supplement
Small processing factories, township workshops, rural commercial service stations and suburban small industrial facilities often face insufficient grid power supply or local voltage shortage problems. Users can configure self-provided power generation equipment, and cooperate with 30kVA–100kVA 400V to 10kV step-up transformers to complete local power boosting and supplementary power supply. This oil immersed step-up power transformer can effectively balance regional power supply pressure, solve the problem of power shortage during peak power consumption, and ensure the continuous and stable operation of small industrial production and commercial service equipment.
3.4 Municipal Power Grid Auxiliary Capacity Expansion
In the renovation and capacity expansion of urban and rural 10kV power grids, this series of small and medium-capacity step-up transformers serve as important auxiliary power distribution equipment. For local grid sections with insufficient power supply capacity, decentralized low-voltage power resources can be boosted to 10kV medium voltage through the step-up transformer to supplement grid power supply, optimize regional power grid load distribution, reduce main line power supply pressure, and improve the overall operation efficiency and power supply reliability of municipal and rural power grids.
4. Product Features
4.1 Multi-Capacity Optional, Flexible Scene Matching
This 10kv class 3 phase step up oil immersed transformer provides four mainstream capacity options of 30kva, 50kva, 80kva and 100kva, covering all common small and medium-sized distributed power generation and local power boosting scenarios. Users can select the most appropriate capacity model according to actual power generation power and transmission demand, which effectively avoids resource waste caused by excessive capacity and operational risks caused by insufficient load margin. All models adopt unified technical standards and installation specifications, with strong versatility and compatibility in engineering application.
4.2 Professional Step-Up Design, Stable Voltage Conversion
Different from universal step-down transformers, this electricity step-up transformer is professionally optimized for 400V to 10kV voltage boosting working conditions. Through precise coil turns ratio calibration and electromagnetic circuit optimization, it realizes accurate and stable step-up conversion from low voltage to medium voltage, with low voltage deviation rate and strong output stability. The three-phase balanced winding structure ensures uniform current distribution, effectively avoids three-phase imbalance during power boosting operation, and guarantees grid-connected power quality fully compliant with 10kV power grid access standards.
4.3 Oil Immersed Sealed Structure, Low Loss and Durable
Adopting fully sealed oil immersed cooling technology and integrated welded steel tank body, the internal high-purity insulating oil forms a natural circulation heat dissipation system, which efficiently takes away the heat generated by core and winding operation. The fully closed structure isolates external air, moisture and dust, completely preventing insulating oil oxidation, emulsification and internal insulation aging. Compared with open-type transformers, this sealed oil immersed transformer has lower no-load loss and operating temperature rise, more stable long-term operation performance, and greatly extended service life, meeting long-term outdoor unattended operation requirements.
4.4 High Safety and Strong Environmental Adaptability
The whole machine is manufactured with high-strength composite insulation materials, equipped with perfect overvoltage, overcurrent and short-circuit protection functions, which can automatically cut off faults to protect power grid and equipment safety in case of grid surge and short-circuit accidents. The external tank body adopts anti-corrosion and weather-resistant coating, with excellent rainproof, dustproof and lightning protection performance. It can operate stably in the temperature range of -25℃ to +50℃, adapting to harsh outdoor environments such as high temperature, humidity and wind and rain, and is suitable for all-weather operation in rural, suburban and field engineering scenarios.
4.5 Simple Installation and Low Maintenance Cost
This 3-phase oil immersed step up transformer features compact overall structure, small floor space and light weight, supporting multiple installation methods such as ground mounting and platform mounting. The standardized wiring interface simplifies on-site installation and commissioning procedures, shortens project construction cycle. The fully sealed maintenance-free design does not require frequent oil replacement and routine maintenance. Users only need regular visual inspection of operating status, which greatly reduces later operation and maintenance labor costs and equipment downtime loss, with high long-term comprehensive cost performance.
5. Frequently Asked Questions (FAQ)
5.1 What is the main application difference between this step-up transformer and conventional 10kV step-down transformers?
The core difference lies in voltage conversion direction and applicable scenarios. Conventional 10kV oil immersed transformers are mainly step-down equipment, used to reduce 10kV grid high voltage to 400V low voltage for terminal power consumption. The 3 Phase 10kv 400v Step Up Transformer is a professional power boosting device, specially designed to convert 400V low-voltage power generated by new energy equipment and generators into 10kV medium voltage for grid connection and long-distance transmission. It focuses on power collection and grid-connected power transmission, while step-down transformers focus on terminal power distribution, and the two types of equipment cannot be used interchangeably in engineering projects.
5.2 How to select the correct capacity among 30kva, 50kva, 80kva and 100kva?
Capacity selection is mainly based on actual power generation power and future load growth demand. The 30kVA and 50kVA models are suitable for small household photovoltaic systems, miniature wind power equipment and low-power off-grid generator sets. The 80kVA model is applicable for small industrial workshops and medium-sized distributed power generation projects with moderate power generation. The 100kVA high-capacity model is the best choice for township centralized new energy power generation and small regional power supplement projects. It is recommended to reserve 10%–20% power margin during selection to avoid long-term full-load operation and extend transformer service life.
5.3 Does this 10kV class oil immersed step-up transformer require regular oil maintenance?
This series of 10kv class oil immersed step up transformers adopts fully sealed integrated tank structure, which isolates external air and moisture fundamentally. The internal high-purity insulating oil has stable insulation and heat dissipation performance, and will not deteriorate or emulsify in conventional operating environments. Daily operation only requires simple inspection of oil temperature, operating noise and tank anti-corrosion status. Regular oil replacement is not needed, and only oil quality sampling detection is required every 3 to 5 years. Compared with open-type transformers, it has extremely low maintenance frequency and greatly reduces long-term operation costs for users.
