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An oil-immersed transformer is a common electrical power device widely used in power transmission and distribution systems. Its primary function is to convert high-voltage electricity into low-voltage power to meet diverse electrical demands. This type of transformer utilizes specialized insulating oil as both a dielectric medium and cooling agent, offering excellent heat dissipation properties. This design enhances operational efficiency and significantly extends the transformer's service life.
ParameterDescription
| Rated Power | 50kVA ~ 500MVA (common models: 50kVA, 100kVA, 200kVA, 500kVA, etc.) |
| HV Rated Voltage | 10kV, 35kV, 110kV, 220kV (commonly 10kV, 35kV) |
| LV Rated Voltage | 400V, 660V, 1000V (commonly 400V, 660V) |
| Frequency | 50Hz or 60Hz (region dependent) |
| Load Loss | Typically 3-10% at rated load |
| No-load Loss | Minimal loss without load, design dependent |
| Short-circuit Impedance | 4% ~ 6% (for grid matching) |
| Cooling Method | ONAN (oil natural air natural), OFAF (oil forced air forced), etc. |
| Insulating Oil Type | Mineral oil or eco-friendly vegetable/synthetic oil |
| Oil Tank Capacity | 200L ~ 2000L (varies by power rating) |
| Temperature Rise Limit | Max. 65°C oil temperature rise |
| Dimensions & Weight | Hundreds of kg to several tons (varies by model) |
Product Features:
Excellent Heat Dissipation - Oil circulation ensures stable operation under prolonged heavy loads.
High Insulation Performance - Transformer oil prevents electrical failures, enhancing system safety.
Moisture Resistance - Superior sealing protects against humidity and insulation degradation.
Reliable Stability - High-quality copper windings and silicon steel cores ensure efficient long-term operation.
Eco-Friendly Design - Uses environmentally friendly insulating oil, meeting modern standards.
Key Strengths:
Core Products: Oil-immersed transformers (10kV~35kV), dry-type transformers, compact substations
Certifications: ISO 9001, CE, and compliant with GB/T 6451 & IEC 60076 standards
Applications: Industrial plants, renewable energy, urban power grids, and infrastructure projects
Service: Customized designs, OEM support, and after-sales technical assistance
Mission: To deliver high-performance, durable transformers with a focus on innovation and sustainability.
Chongqing Zexing Electric Power Equipment Co., Ltd. is committed to providing high-quality electrical equipment with certifications that meet international standards. The company holds various certificates, including ISO 9001 for quality management, ISO 14001 for environmental management, and CE certification for product safety and compliance. These certifications validate the company's dedication to maintaining strict quality control, environmental sustainability, and meeting the highest safety standards, ensuring the reliability and efficiency of its products.
Chongqing Zexing Electric Equipment Co., Ltd. (Company Profile)
Chongqing Zexing Electric Equipment Co., Ltd. is a professional manufacturer specializing in the R&D, production, and sales of oil-immersed transformers, dry-type transformers, and related power distribution equipment. Located in Chongqing, China, we are committed to providing reliable and efficient power solutions for industrial, commercial, and utility applications.With advanced production technology and strict quality control, we provide reliable and energy-efficient solutions for power transmission and distribution systems.
Chongqing Zexing Electric Power Equipment Co., Ltd. operates a modern and well-equipped manufacturing facility, which spans a large area. The factory is designed to meet industry demands for high-quality electric power equipment, featuring advanced production lines and rigorous testing systems. With a focus on innovation and efficiency, the factory is equipped with state-of-the-art machinery and skilled workers to ensure the production of reliable and durable products. Zexing Electric Power Equipment's manufacturing process adheres to strict international standards, enabling the company to supply its customers with top-tier products and services.
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