S9 Oil Immersed Transformer 10kV-35kV

S9 Oil Immersed Transformer 10kV-35kV

Reliable Power Distribution for Modern Infrastructure

Our S9 Oil Immersed Transformer 10kV-35kV delivers enterprise-grade performance with proven reliability. This three-phase transformer achieves efficiency ratings above 98.5% while reducing no-load losses by 20-30% compared to previous generations. Operating seamlessly in temperatures from -40°C to +40°C, it handles capacities from 30KVA to 31,500KVA. With advanced grain-oriented silicon steel cores and mineral oil insulation, you get superior heat dissipation and arc extinction properties. Backed by our 18 patents, 15 senior engineers, and over 120 sets of advanced production equipment, we ensure every unit meets ISO9001 standards and delivers 30+ years of dependable service.

What Makes This Transformer Different?

You need equipment that works when it matters most. Our transformer combines proven technology with modern engineering.

Energy Efficiency That Reduces Your Costs

Traditional transformers waste energy through excessive heat and transmission losses. We've optimized the core structure using high-grade cold-rolled grain-oriented silicon steel with magnetic flux density of 1.65-1.7T. This design cuts your operating expenses significantly. Lower losses mean reduced electricity bills month after month.

Built for Challenging Environments

Your operations don't stop for weather. Neither does this transformer. The robust oil-immersed design handles harsh conditions that would damage other equipment. Dust, vibration, temperature swings—it manages them all. The sealed tank construction resists environmental interference. You get consistent performance whether you're in urban centers or remote locations.

Flexible Capacity Options

Every project has unique power requirements. That's why we offer capacity ranges from 30KVA up to 31,500KVA. You can match the transformer precisely to your needs. No paying for excess capacity you'll never use. No discovering you're undersized when demand increases.

Technical Specifications

Here's what you get with each unit:

Where You'll Use This Equipment?

Urban Distribution Networks

City power grids demand reliability. Our S9 Oil Immersed Transformer 10kV-35kV functions as the backbone of electrical substations. It converts 35kV transmission voltage down to 10kV distribution levels. You serve residential towers, shopping complexes, and office buildings with stable power. Even in high-density load areas with pollution levels up to Class III, performance remains consistent.

We've supplied transformers for major projects including Xuzhou Rail Transit Network Control Center and Xuzhou High-speed Railway East Station. These critical installations require absolute reliability. Dual-circuit power supply designs ensure continuous operation.

Industrial Facilities

Manufacturing plants, mining operations, and chemical processing facilities put equipment through tough tests. You need transformers that withstand vibration, dust, and temperature fluctuations. The oil-immersed cooling system maintains stability under continuous high loads. Voltage regulation stays within ±5% even as demand varies throughout production shifts.

Our track record includes XCMG Group factory power supply upgrades and GCL Photovoltaic Industrial Park. These projects demanded ahead-of-schedule completion without compromising quality. We delivered.

Rural Electrification

Remote areas present unique challenges. Extreme weather, limited maintenance access, and altitude variations test equipment limits. This transformer operates reliably from desert environments exceeding 45°C to mountainous regions at 3,000 meters altitude. You get consistent power supply with minimal maintenance requirements.

Key Advantages You'll Appreciate

Lower Total Cost of Ownership

Initial investment stays competitive. Operating costs run lower than alternatives. You save money upfront and throughout the equipment lifetime.

Exceptional Durability

Strong overload capacity handles demand spikes. The robust design suits outdoor installation. Service life exceeds 30 years with proper maintenance.

Ultra-High Capacity Options

We accommodate projects from small installations to massive industrial complexes. Voltage levels scale to meet your specifications.

Predictive Maintenance

Modern fault diagnosis systems catch problems early. You schedule maintenance on your terms. Unexpected failures become rare.

Environmental Responsibility

New eco-friendly insulating fluids enhance safety. Environmental performance meets or exceeds current regulations.

FAQ

Q: How long will this transformer last in my facility?

You can expect 30-35 years of service life. We determine this through accelerated aging tests per IEEE C57.91 standards. Regular dissolved gas analysis and oil quality testing per IEC 60599 help monitor actual aging rates. This lets you predict remaining service life accurately.

Q: What maintenance schedule should I follow?

Perform initial oil testing within 6 months of starting operations. After that, annual testing works for normal conditions. If you operate in harsh environments, test semi-annually. Emergency testing becomes necessary if fault gas levels exceed IEEE C57.104 guidelines or after any abnormal electrical events.

Q: What dissolved gas levels indicate problems?

Normal operation allows H2 below 150ppm, CH4 under 25ppm, C2H4 less than 10ppm, C2H6 under 5ppm, and C2H2 below 1ppm per IEC 60599. When concentrations exceed these thresholds, investigate immediately. Rapid gas generation rates above 30ppm per month warrant potential load reduction.

Q: What causes overheating and how do I prevent it?

Common causes include overloading beyond nameplate rating, blocked cooling systems, high ambient temperatures, or internal faults. Prevent issues through load management and cooling system cleaning. Maintain adequate ventilation spacing of 2-3 meters. Conduct thermal imaging inspection per IEEE C57.91 guidelines regularly.

Q: How do I assess damage after a short-circuit event?

Post-fault assessment requires comprehensive testing. Check turns ratio measurement and verify impedance stays within ±3% of baseline. Test insulation resistance and conduct detailed dissolved gas analysis per IEEE C57.125. Frequency response analysis (FRA) testing per IEC 60076-18 standards detects mechanical deformation of windings that standard electrical tests miss.

Why Choose Xuzhou Tuojie International Trade?

You partner with more than a supplier. Our technical team includes 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians. This expertise shows in our 18 patents and continuous innovation.

We operate over 120 sets of advanced production equipment. CNC automatic winding machines, static vacuum casting machines, and microcomputer-controlled gradient curing furnaces ensure precision manufacturing. Every production stage follows strict quality management from raw material procurement through final delivery.

Our philosophy prioritizes your needs: technology first, service paramount, and integrity fundamental. We've completed hundreds of key power projects across municipal, commercial, and industrial sectors. Projects like Xinhuai Central Complex, Zhongjun Huijingcheng, and Huaihai Biomedical Industrial Park demonstrate our capability to deliver complex solutions on time.

All products meet international standards with ISO 9001, ISO 14001, and OHSAS 45001 certifications. Our professional quality inspection laboratory tests every unit before shipment. You receive equipment that meets your country-specific requirements and environmental conditions.

Get Started Today

Ready to upgrade your S9 Oil Immersed Transformer 10kV-35kV power distribution system? Contact our team to discuss your specific requirements and receive a customized solution for your project.

Email: tuojie@electricinchina.com​​​​​​​