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Oil-immersed Transformer Series

Our oil-immersed transformer series stands out in the power industry for its exceptional performance, safety, stability, and durability.

Key Features:
✔ Wide Range: Models from S9 to S22, covering 6kV to 35kV voltage and 15kVA to 31,500kVA capacity
✔ Global Compliance: Certified to ISO 9001, IEC, SGS, Intertek, CCC, CE, BV, GOST, and other international standards
✔ Energy Efficient: Low temperature rise, high load capacity, and stable long-term full-load operation
✔ Reliable Performance: Robust design ensures continuous, trouble-free power supply

Why Choose Our Transformers?

✓ Tailored Solutions: Customized to meet specific market requirements
✓ Proven Durability: Engineered for decades of reliable service
✓ Global Trust: Trusted by industries worldwide for critical power applications

✓ High and Low Voltage Switchgears: Flexible Customization & Comprehensive Testing Capabilities

Deep Customization Services

✓ Modular Design: Compatible with ABB/Siemens components
✓ Aesthetic Customization: 20+ color options / RAL color matching
✓ ODM & OEM Solutions: Full-service customization support
✓ International-Class Testing Laboratory

Advanced Testing Equipment

✓ Short-circuit test platform
✓ Temperature rise chamber (-40°C~150°C)
✓ Partial discharge detection system (0.1pC precision)

Custom Advantages

Smart Manufacturing Strength

With a 250,000㎡ modern industrial park in Henan Province featuring two intelligent production workshops, we implement end-to-end automated processes using cutting-edge WMS, RGV/AGV and MES systems. Our 5G-integrated smart factory enables real-time data monitoring and precision control, establishing us as a leader in digital transformer manufacturing.

Production Capacity

Our 220+ advanced production units achieve 99% automation, delivering:
• 3,000 substations/year
• 10,000 switchgear sets/year
• 50 oil-immersed transformers/day
This robust capacity ensures rapid response to bulk orders and market demands.

Technical Innovation

Holding 158 patents (20 inventions), our CNAS-certified lab conducts rigorous tests including lightning impulse, temperature rise, and short-circuit impedance to guarantee global reliability. All products meet IEC, SGS, CQC and CE standards.

Global Presence

Our transformers, switchgear and substations serve 80+ countries across Africa, Americas and Southeast Asia, earning trust from utilities and industrial clients worldwide.

Service Commitment

We maintain 24/7 professional support with customer satisfaction as our top priority, providing comprehensive after-sales solutions.

Customer Service Excellence at TSTYNICE

Our Service Differentiators

Dedicated project managers for every order Digital twin technology for remote troubleshooting Annual customer satisfaction score: 9.8/10

Pre-Sales Commitment

✓ Instant Technical Response - Dedicated engineering team guarantees professional consultation within 2 hours
✓ Customized Solutions - Site-specific technical planning with ROI analysis
✓ Competitive Quoting - Value-engineered proposals with transparent cost breakdowns
✓ 24/7 Global Support - (+86-375-8888888) - Quick response within 12 hours

Order Execution

✓ Contract Assurance - International-standard commercial contracts with technical annexes
✓ On-Time Delivery - 98.6% on-schedule fulfillment rate in 2023
✓ Smart Packaging - ISO-certified crating for sea/air freight protection
✓ Equal Treatment Policy - Consistent service standards regardless of order size

Post-Sales Protection

✓ 12-Month Warranty - Complimentary replacement for manufacturing defects
✓ Lifetime Support - Cost-only spare parts beyond warranty period
✓ Emergency Response - 24/7 multilingual technical hotline with <4h response guarantee
✓ Preventive Maintenance - Optional extended service programs availableatisfaction score: 9.8/10