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Overvoltage Protection Oil Immersed Transformer with Copper Coils
US$999.00-62,000.00
1 Piece
Product specifications
capacity
voltage
Product profile
Customization
AvailableApplication
Power, Electronic, Instrument, Lighting, RectifierPhase
ThreeModel NO.
30KVA-3600KVACore
Core-type TransformerCooling Method
Oil-immersed Type TransformerWinding Type
Two-winding TransformerCertification
ISO9001-2000, ISO9001Usage
Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution TransformerFrequency Characteristics
Power FrequencyShape of Core
RingCoil Structure
Copper/Aluminum CoilsService Life
More Than 20 YearsTransport Package
Customized Solid Wooden CaseSpecification
30KVA-3600KVATrademark
NewfieldOrigin
QingdaoProduction Capacity
10000pieces/YearKey features
Long Service Life: Up to 25 years of stable operation with low energy loss.
Advanced Overvoltage Protection: Automatically alarms and cuts power during overvoltage, overcurrent, or oil leakage.
Dual Material Options: Available with either Copper or Aluminum coils based on budget and efficiency needs.
High Efficiency Design: Low-loss core materials reduce energy consumption and transmission costs.
Comprehensive Certifications: Complies with IEC, CCC, CE, UL, and ISO 9001 standards.
Customizable Designs: Tailored solutions available to meet specific user power supply requirements.
Robust Cooling System: Oil-immersed insulation ensures stable operation in high temperatures and humidity.
Strong Overload Capacity: Designed to handle high loads while maintaining low noise levels.
Company profile
Business Type: Manufacturer/FactoryExport Year: 2025-10-11Nearest Port: Qingdao PortAverage Response Time: ≤0.01hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW, CFR, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA
AI-Powered supplier vetting
SummaryQingdao Newfield New Energy Technology Co., Ltd. is a limited manufacturing and R&D company offering power transformers, dry-type transformers, box-type substations and related electrical equipment. It holds multiple management and product certifications, reports quality assurance, and has experience exporting to numerous global regions. Production evidence includes six operated lines, three additional stated production lines, and 41–50 quality-control staff, although the employee count is stated as 25 in another slice and should be verified. The supplier has inventory capability and accepts common trade terms, but lacks overseas warehouses, showrooms, agents or branches, and has not participated in offline trade shows. Its R&D information indicates no available SDK, while financial records are identified only by years without substantive performance data. Manufacturing capacity is weakened by the absence of a valid contract with associated subcontractors. No Fortune 500 customer relationships or named...
Supplier typeThe supplier is identified as a limited company and a combined company, with manufacturing, R&D and sales activities covering power transformers, substations and related electrical equipment. It is not part of a larger company group and is not an offshore company.
CertificationsThe supplier reports ISO9001:2015, ISO45001:2018 and ISO14001 certifications, CCC product certification, and ISO 9000/ISO 9001 management-system certifications. A TUV Rheinland audit record is shown as valid from 2026-02-06 to 2027-02-05, but the audit result is recorded as 0 without an explanation.
After-Sales capabilityThe supplier has inventory capability and can quote FOB, CIF, CFR and EXW terms, with service proximity to Qingdao Port. However, it has no overseas warehouse, showroom, agent or branch, serves zero stated overseas countries through those capabilities, and complaint-handling procedures lack written records.
R&D capabilityThe supplier conducts R&D and employs R&D engineers with 6–10 years of total experience, and its stated business scope includes manufacturing and research and development. Nevertheless, it explicitly reports no available SDK, and no concrete patents, products, projects or technical achievements are provided.
Client casesThe supplier reports eight years of international trade and export experience and exports to a wide range of global markets. It explicitly reports no partnerships with Fortune 500 companies, and no named customers, project references, or verifiable case studies are supplied.
Product Q&A
Q:Does your company hold any relevant international quality certifications?
A:
Yes, our factory is ISO 9001 Quality Management System certified. Our products comply with international standards such as IEC (International Electrotechnical Commission) and CE. We can also apply for certifications specific to other countries upon customer request.
Q:What is your factory's production capacity? What is the annual output?
A:
We operate a modern production base with advanced production lines. Our annual production capacity exceeds 10,000 units. We manufacture oil-immersed and dry-type transformers ranging from 30KVA to 20MVA.
Q:How do you ensure product quality?
A:
Our quality assurance spans the entire process: Source Control: Strict supplier screening and incoming inspection of raw materials. Process Control: Quality control points established at critical production stages. Final Inspection: Each transformer undergoes rigorous factory testing before shipment, with test reports provided.
Q:What types of transformers do you primarily manufacture?
A:
We mainly produce: Oil-immersed transformers: Suitable for outdoor, power plant, and large industrial projects, offering a wide power range and high cost-effectiveness. Dry-type transformers: Ideal for indoor, commercial buildings, hospitals, data centers, and other locations with high fire safety requirements.
Q:What are the primary materials for transformers? Are windings copper or aluminum?
A:
We offer both materials: Copper windings: Higher conductivity, better efficiency, smaller size, high mechanical strength, longer lifespan, but higher cost. Aluminum windings: Lower cost, lighter weight, fully qualified alternative material. We recommend clients select suitable materials based on project budget, efficiency requirements, and long-term operational costs.
Send Inquiry
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Qingdao Newfield New Energy Technology Co., Ltd.
Qingdao Newfield New Energy Technology Co., Ltd.*Content:
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