Tel: +86-513-88779999
Email: [email protected]
Tel: +86-513-88779999
Email: [email protected]
The Challenge: Increasing Capacity Without Compromising Grid Reliability
Utility companies and EPC contractors must continually expand transmission capacity while maintaining voltage stability and uninterrupted service. Aging infrastructure, growing electricity demand, fluctuating loads, renewable power penetration, and limited outage windows make grid expansion increasingly complex.
A transformer selected only by voltage and capacity may not adequately address short-circuit conditions, overload patterns, voltage fluctuations, environmental stresses, transportation limitations, or future grid expansion. Unexpected overheating, insulation deterioration, partial discharge, oil contamination, or tap-changer problems can result in unplanned outages and substantial lifecycle costs.
Reliable Power Transformation for Modern Grid Infrastructure
Power utilities require transformers capable of supporting continuous operation, changing load conditions, voltage stability, and long-term grid development. Equipment reliability is critical because transformer failures can lead to costly outages and disruption across the power network.
Dingxin Electric provides power transformers for power plants, transmission substations, regional grids, and urban or rural distribution networks. Our solutions cover voltage levels up to 220 kV and can be customized according to the required capacity, voltage ratio, impedance, cooling method, insulation level, and tap-changing system.
For medium- and large-capacity transformers, intelligent monitoring equipment can also be integrated according to customer requirements, including DGA, oil temperature, winding temperature, partial-discharge, oil-level, pressure, and load monitoring.
Solution Benefits
· Power transformer solutions up to 220 kV
· Stable operation under varying grid loads
· Customized electrical and mechanical designs
· Optional on-load tap changers
· Optional intelligent online monitoring
· IEC- or customer-specified configurations
Recommended Products
· 35 kV Power Transformer
· 110–220 kV Power Transformer
· OLTC Power Transformer
· Oil-Immersed Power Transformer
· High-Voltage Switchgear
Customized for Your Project
Voltage, capacity, frequency, phase, impedance, connection group, tap range, cooling method, enclosure, protection system, monitoring functions, and component configuration can be customized accordin
Built for International Markets
Products can be designed according to applicable IEC, IEEE, and customer-specified technical requirements, supporting power projects across different countries and regions.
Integrated Manufacturing Capability
With a 50,000-square-meter production facility and more than 260 sets of manufacturing and testing equipment, Dingxin Electric maintains control over key production and quality-inspection proc
Faster Project Delivery
As a direct manufacturer, Dingxin Electric can coordinate engineering, material preparation, manufacturing, and testing more efficiently. Lead time depends on the product and specifications; standard dist
Comprehensive Technical Support
Our team supports customers from initial specification review and product selection through technical drawings, manufacturing, testing, documentation, delivery, installation guidance, and after-sa
Dingxin Electric provides 35 kV, 110 kV, and 220 kV power transformers for power plants, transmission substations, regional grids, and large industrial power networks.
Each transformer can be engineered around the actual network conditions, including rated capacity, voltage ratio, system frequency, impedance, insulation level, vector group, short-circuit strength, cooling method, temperature-rise limit, and tap-changing requirements.
For networks affected by regular voltage fluctuations, an on-load tap changer can be incorporated to support voltage regulation without interrupting the power supply. Cooling arrangements and radiator configurations can be optimized according to loading conditions and ambient temperature.
Dissolved gas analysis
Oil and winding temperature monitoring
Partial-discharge monitoring
Oil-level and oil-pressure monitoring
Bushing condition monitoring
Load-current monitoring
Cooling-system status monitoring
Remote alarms and communication interfaces
Supports stable power transmission under changing load conditions
Reduces the risk of transformer-related outages
Improves voltage regulation and grid adaptability
Enables condition-based maintenance
Reduces avoidable inspection and maintenance costs
Supports future network expansion through project-specific engineering
35 kV Power Transformer
110–220 kV Power Transformer
SZ11 Transformer with OLTC
Oil-Immersed Power Transformer
High-Voltage Switchgear
Intelligent Transformer Monitoring System
We configure equipment according to the customer’s actual system rather than offering only fixed standard models. Voltage, capacity, frequency, impedance, vector group, tap range, cooling method, enclosure, cable interface, protection, and monitoring functions can be customized.
Dingxin supplies product configurations for different international distribution practices. Applicable equipment can be designed according to IEC, IEEE, or project-specific technical requirements, subject to final specification review.
Our 50,000-square-meter manufacturing facility is equipped with more than 260 sets of production and testing equipment. In-house production capability helps us coordinate engineering, manufacturing, quality control, and delivery more efficiently.
Production follows controlled inspection procedures, from incoming materials and component processing to assembly and final testing. Products undergo required factory inspections before shipment, with test documentation provided according to the contract.
As a direct manufacturer, Dingxin can respond more quickly to specification changes and urgent project requirements. Lead time depends on product type, capacity, voltage, order quantity, and customization level. Standard distribution transformers generally require approximately 40 days.
Our service covers technical consultation, equipment selection, customized design, drawing confirmation, manufacturing, testing, export documentation, delivery coordination, installation guidance, and after-sales technical support.
Tell us your required capacity, primary and secondary voltage, frequency, installation environment, applicable standard, load characteristics, and delivery schedule. Dingxin Electric will develop a transformer or integrated substation solution around your project.
Jiangsu Dingxin Electric, a high-tech power equipment manufacturer, produces high-quality transformers and substations, serving global markets across 30+ countries.
Room 118, Building 8, 2999 Hutai Road, Baoshan District, Shanghai, China
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