Name: Oil Immersed Current Transformer
Capacity: 800-31500KVA
Rated Voltage: 35KV
Delivery Year: 2024
Country/Region: Vietnam
Application Scenario: High-voltage substation power monitoring and distribution system
Brief Advantage: Oil-immersed sealing technology ensures high insulation and efficient heat dissipation, adapting to high-temperature and high-humidity environments while stably supporting large-capacity power transmission and precise current monitoring.
Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of 2000kva/35kv oil immersed current transformer in China. With abundant experience, we warmly welcome you to wholesale high quality 2000kva/35kv oil immersed current transformer at low price from our factory. Contact us for more cheap products.
Oil Immersed Current Transformer Product Introduction
35KV oil-immersed current transformers are precision measurement devices specifically designed for high-voltage power systems, suitable for current monitoring, energy metering, and protection control in 35KV distribution networks. By linearly converting large primary currents to standard small secondary currents (such as 5A or 1A), they provide safe and accurate current signals to relay protection devices, energy meters, and other secondary equipment. The product is widely used in high-voltage substations, industrial distribution systems, and new energy power generation sites, particularly demonstrating excellent performance in high-temperature, high-humidity, or harsh environments.
Made from high-quality cold-rolled silicon steel sheets, offering high magnetic permeability and low hysteresis loss to ensure measurement accuracy.
Winding System:
Primary winding: Large cross-sectional conductor, capable of carrying high capacity current (800-31500KVA).
Secondary winding: Multi-layer insulated winding to ensure high precision and low error.
Oil Tank and Sealing System:
Oil tank: Constructed from high-quality steel plates with surface corrosion-resistant treatment, containing insulating oil (such as transformer oil).
Sealing technology: Fully sealed structure design, effectively isolating moisture and dust to prevent oil leakage.
Insulation System:
Main insulation: Oil-soaked paper or epoxy resin insulation material, capable of withstanding 35KV high voltage.
Auxiliary insulation: Multiple layers of insulation protection to ensure operational safety.
Oil Immersed Current Transformer Product features
1.High Precision and Stability
Oil Immersed Current Transformer: Utilizes oil-sealed technology to effectively isolate external interference, ensuring 0.2 class measurement accuracy under full load operation (31500KVA), meeting the requirements for high-precision electrical energy metering.
Core magnetic circuit optimized design: Reduces residual magnetism and non-linear errors, ensuring rapid response to short-circuit currents at protection levels (5P/10P).
2.Outstanding Environmental Adaptability
Heat and humidity resistance: Sealed oil tank and insulating oil design allows long-term stable operation in an environment with temperatures up to 40℃ and relative humidity of 95%, making this transformer suitable for hot and humid regions such as Southeast Asia (e.g., Vietnam).
Strong anti-interference capability: Fully sealed structure isolates dust, salt fog, and corrosive gases, extending service life.
3.Safety and Reliability
Double protection of insulating oil: The combination of oil-soaked paper insulation and epoxy resin in Oil Immersed Power Transformers provides high breakdown voltage and strong short-circuit endurance.
Explosion-proof design: Dual protection of oil tank pressure relief valve and safety film prevents accidents caused by sudden failures.
4.Efficient Heat Dissipation and Low Losses
Natural circulation oil cooling: Reduces temperature rise, decreases energy loss, and complies with energy efficiency requirements.
Low-loss silicon steel sheet technology: No-load current is as low as 0.01%, reducing operating costs.
5.Easy Installation and Maintenance
Modular design: Oil Immersed Current Transformer supports quick disassembly and winding replacement, extending maintenance intervals.
Standardized interfaces: Secondary terminals use internationally recognized wiring methods, compatible with mainstream protective devices and electricity meters.
Global Transformer Supply Chain Integration Expert (2008 - Present)
Founded in 2008, GNEE Group has undergone fifteen years of deep industry cultivation, successfully transforming from a regional trader to a global supply chain management expert. As a pioneer in the integration of the steel industry chain, the group has established a full-cycle value system that spans raw material procurement, production coordination, logistics optimization, and terminal services, setting an innovative operational benchmark in the global transformer distribution sector. In the era of Industry 4.0, GNEE Group is accelerating towards its goal of becoming a global integrator oftransformer industry value through digital restructuring and green supply chain construction.
Production Environment
FAQ
Q: What Are the Core Competitive Advantages of Your Company?
A: Experience and Scale: Since its establishment in 2008, our company has been focusing on the transformer field for 18 years. We have delivered over 50,000 units of equipment and served more than 2,000 customers globally.
R&D and Production: A team of 200 professionals with a 20,000㎡ modern production base covering three major locations in China: Shijiazhuang, Xingtai, and Anyang. This ensures full autonomy from raw materials to finished products.
Customization Capability: Supports the design of transformers ranging from 50kVA to 5000kVA. Customized solutions can be provided for special scenarios such as high altitude or extreme temperatures.
Q: How Do You Ensure Delivery Time and Quality?
A: Supply Chain Assurance: Leveraging the industrial cluster advantages of three factories, we maintain sufficient raw material inventory, enabling faster order response compared to the industry average by 30%.
Quality Control System: From the precision of core stacking (±0.5mm) to 200 inspection items before product delivery, we ensure that each device complies with international standards such as CE and IEC.
Q: What Is the Delivery Cycle for Standard Products? Will Custom Products Affect Delivery Time?
A: Standard Products: The typical delivery cycle is 15-30 working days (starting from the signing of the contract and receipt of the advance payment).
Custom Products: Delivery cycles may extend depending on specific requirements, usually requiring 30-60 working days. If special materials, non-standard designs, or international transportation are involved, the specific time will be negotiated between both parties.
Q: Does Your Company's Transformers Meet International Standards?
A: Certifications: Passed certifications including IEC 60076 (International Standard), GB/T 6451 (Chinese National Standard), SGS, CE, UL, etc.
Special Certifications: Non-crystalline alloy transformers meet the IEC 61786 (high-efficiency transformer) standard; pre-assembled substations comply with the IEC 62271-200 (pre-assembled substation) requirement.
Q: How to Choose the Appropriate Type of Transformer?
A: Energy Efficiency Priority: Select amorphous alloy or epoxy resin dry-type transformers.
High Load Scenarios: Oil-immersed transformers are preferable.
Complex Distribution Needs: Contact engineers to customize pre-assembled substation solutions.
