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Durable 400kVA Oil-Immersed Transformer with Enhanced Performance 4.
US$179.101-1,791.04
1 Piece
Product profile
Customization
AvailableApplication
Power, ElectronicPhase
ThreeModel NO.
S20-MCore
Core-type TransformerCooling Method
Oil-immersed Type TransformerWinding Type
Two-winding TransformerCertification
ISO9001-2000, ISO9001, CCCUsage
Power Transformer, Distribution TransformerFrequency Characteristics
Low FrequencyShape of Core
RingBrand
YuantongVoltage Grade
10.5kvRated Capacity
400kVAInsulation
Insulating OilWinding Material
AluminumTransport Package
Wooden BoxSpecification
1400kgTrademark
YuantongOrigin
ChinaKey features
Long Service Life: Robust structure allows steady operation for decades under standardized maintenance.
Excellent Heat Dissipation: Oil circulating structure ensures high heat exchange efficiency and superior temperature control.
Strong Overload Resistance: Capable of stable full-load operation and short-time overload under fluctuating conditions.
Comprehensive Protection: Real-time monitoring of temperature, pressure, and oil-gas status to prevent faults.
Wide Applicability: Suitable for outdoor, indoor, box substations, and various industrial power scenarios.
Low Maintenance Cost: Simple daily maintenance with low operating and consumable costs throughout the life cycle.
Customization Options: Offers full, flexible, minor, sample-based, and design-based customization services.
1-Year Warranty: Covers mechanical defects with a comprehensive one-year warranty period.
Company profile
Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.42h
About Our Factory & Business Background
AddressNantong, Jiangsu, China
Plant Area15458 square meters
Terms of PaymentLC, T/T, D/P
International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW
Average Lead TimePeak Season Lead Time: within 15 workdays, one month Off Season Lead Time: within 15 workdays, one month
Minimum Order Quantity1
Supply Chain Partners86
Our Production Capability & Technical Expertise
Main ProductsPower Transformer, Oil Immersed Transformer, Dry Type Transformer, Pole Mounted Transformer, Amorphous Alloy Transformer, Compact Substation (European Type Prefabricated, New Energy Transformer, Special Transformer, Open Ventilated Dry Transfomer(Non-Encapsulated), Vpi Dry Transformer
Production Lines5
Production MachinesCross Cutting Production Line, Automatic Laminating Machine, Curing Oven, Pouring Machine, Slitting Cutter, Wire Wrapping Machine
QA/QC inspectors12 people
Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)
Inspection Method for Finished ProductsHave instructions and uniformly followed
R&D Engineers13 people
Traceability of Raw MaterialsYes
Our Industry Experience & Global Business Record
Main MarketsDomestic
Repeat Buyers Choice10%~30%
Overseas Agent/BranchNo
New Products Launched in Last yearYes
Our Certifications, Standards & Industry Recognition
Management System CertificationISO9001:2015, ISO45001:2018, ISO14001
Product CertificationCE
Cooperated with Fortune 500Yes
Product Q&A
Q:Are oil-immersed transformers only suitable for outdoor use?
A:
No. Oil-immersed transformers can be installed outdoors, indoors and in box substations. With excellent heat dissipation and overload performance, they are widely used in power grid and industrial scenarios, and can work indoors with proper ventilation and fire protection measures.
Q:Is noise during operation of oil-immersed transformers a fault?
A:
Steady and uniform humming sound is normal electromagnetic noise. Sharp abnormal sound, intense vibration and unstable noise indicate abnormal operation caused by core looseness, unbalanced load or abnormal voltage, which requires timely maintenance.
Q:Does transformer oil need regular replacement?
A:
Frequent replacement is not required. It only needs regular quality testing, impurity filtration and dehumidification. Oil replacement is only needed when the oil is severely aged, damp, carbonized or fails insulation standards.
Q:What are the core advantages of oil-immersed transformers compared with dry-type transformers?
A:
They feature higher heat dissipation efficiency, larger heat capacity, stronger overload resistance, longer service life and lower overall maintenance costs, making them more suitable for high-power and long-term continuous operation in industrial and power grid conditions.
Q:Can oil-immersed transformers operate under full load for a long time?
A:
Yes. Standard oil-immersed transformers support long-term continuous operation at rated load with short-time overload margin. They can operate stably and continuously with qualified oil quality and good heat dissipation and ventilation conditions.
Send Inquiry
*To:
Jiangsu Yuantong Electric Group Co., Ltd.
Jiangsu Yuantong Electric Group Co., Ltd.*Content:
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