Energy Saving 35kV Oil Immersed Power Transformer Anti-Leakage For Industrial Power Grid
Scope of Application
Urban and rural power distribution
The main equipment of regional substations emphasizes low loss and low noise.
Industrial Park
Primary power supply for load centers, focusing on short-circuit withstand capability and reliability.
Energy Center
Park-level integrated energy station, focusing on efficiency and ease of operation and maintenance.
Product Description
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1 - Constant-temperature workshop production: Enclosed operating environment with strict control over impurities, ensuring superior insulation stability.
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2 - Thermal field simulation design: Optimized heat dissipation structure with ample thermal margin, suitable for continuous full-load operation.
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3 - Structural vibration and noise reduction: Optimized reinforcement rib layout; operating noise ≤52dB, meeting requirements for use near residential areas.
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4 - Dual-layer sealing verification: Integrated tank structure combined with pressure leak testing to eliminate oil leakage risks.
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5 - Precision core processing: Automated lamination process reduces no-load loss by 18% compared to standard products, achieving Grade 1 energy efficiency.
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6 - Short-circuit type testing: Third-party impact testing completed; coils demonstrate high resistance to deformation, making them suitable for complex grid conditions in county-level areas.
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Energy-efficient
Features a new high-permeability magnetic core, reducing no-load losses by 18%.
Stable insulation
Compact insulation structure ensures partial discharge ≤30pC and a low operational failure rate.
High deformation resistance
Coils undergo anti-loosening reinforcement to withstand standard grid short-circuit impacts.
Leak-resistant sealing
Integrated sealed oil tank with a core-lifting-free design.
Quiet operation
Integrated vibration-damping structure keeps operating noise ≤52dB, making it suitable for substations near residential areas.
Easy Daily Maintenance
Primarily utilizes off-circuit tap changing with streamlined protection systems, minimizing routine maintenance requirements.
Main parameters
Rated voltage: 35±2×2.5%/10.5/0.4 kV
Rated capacity: 50–25,000 kVA
Vector group: Dyn11/Yyn0
Cooling method: ONAN (Oil Natural Air Natural)
Execution standards
Technical advantages
Hanzhong Xinsanhuan’s 35kV oil-immersed transformers feature a lightweight, streamlined design. Compared to 110kV and 220kV high-voltage main transformers, these units are more compact, cost-effective, and faster to deliver, making them ideal for batch deployment in small-to-medium-sized power distribution projects. Manufactured in standardized, local clean-room facilities, they incorporate optimized moisture- and rust-proofing processes tailored to the rainy, humid climate of southern Shaanxi. The manufacturing meets both national and IEC international standards, with every unit undergoing comprehensive factory electrical testing. Customization for non-standard capacities and voltages is available, supported by rapid local after-sales service. With flexible supply and convenient maintenance, these transformers are well-suited for large-scale deployment across county-level power grids, industrial facility distribution systems, and distributed photovoltaic projects.