Tel: +86-513-88779999
Email: [email protected]
Tel: +86-513-88779999
Email: [email protected]
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The Challenge: Efficiently Collecting and Exporting Solar Power
Photovoltaic plants generate low-voltage power through multiple inverter groups. Before this electricity can enter the collection network or utility grid, it must be stepped up, switched, protected, measured, and monitored.
Large solar projects may contain many transformer stations distributed across a wide site. Equipment must therefore be compact, repeatable, easy to install, and suitable for high temperatures, dust, ultraviolet exposure, high altitude, or large daily temperature variations.
Improper coordination between the inverter and transformer can cause excessive temperature rise, harmonic losses, voltage problems, nuisance protection trips, and reduced energy yield. Differences in inverter quantity, output voltage, grounding method, and grid code also make standard configurations unsuitable for many projects.
Efficient Voltage Step-Up and Grid Connection for Solar Projects
Photovoltaic power stations require reliable equipment to receive electricity from inverters, increase the voltage, protect the collection system, and transmit power safely to the utility grid. Different inverter arrangements, site layouts, ambient conditions, and grid codes require a carefully coordinated transformer solution.
Dingxin Electric provides photovoltaic combined transformers and prefabricated substations for utility-scale solar farms, commercial photovoltaic plants, and distributed generation projects.
The transformer capacity, input configuration, output voltage, impedance, enclosure layout, protection system, communication protocol, and monitoring functions can be customized to match the inverter system and grid-connection requirements.
Solution Benefits
· Integrated transformer and switchgear design
· Compatible with different inverter configurations
· Reduced installation and commissioning work
· Customized for local grid-connection requirements
· Suitable for high-temperature, dusty, or high-altitude sites
· Optional intelligent monitoring and remote communication
Recommended Products
· Photovoltaic Combined Transformer
· Photovoltaic Prefabricated Substation
· Inverter Step-Up Transformer
· Oil-Immersed Transformer
· Medium-Voltage Switchgear
· Low-Voltage Distribution Equipment
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 according
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 photovoltaic combined transformers and prefabricated step-up substations for utility-scale solar farms, commercial photovoltaic plants, and distributed generation projects.
The solution collects output from one or more inverter groups, steps the voltage up to the medium-voltage collection level, and provides switching, protection, and monitoring before power is transmitted to the grid.
The integrated system can include:
· Step-up transformer
· Medium-voltage switchgear or load switch
· Low-voltage incoming compartment
· Protection and metering devices
· Auxiliary power system
· Communication and monitoring interfaces
· Outdoor enclosure and ventilation system
Individual and total inverter capacity
Inverter output voltage
Number of low-voltage inputs
Harmonic characteristics
Required transformer impedance
Collection-system voltage
Grid grounding method
Expected overload profile
Ambient temperature and altitude
Communication protocol
Improves compatibility between inverters and transformers
Reduces losses during voltage step-up
Simplifies installation across large solar sites
Reduces on-site cable and equipment interfaces
Supports remote monitoring of distributed transformer stations
Helps meet project-specific grid-connection requirements
Photovoltaic Combined Transformer
Photovoltaic Prefabricated Substation
Inverter Step-Up Transformer
Oil-Immersed Transformer
Medium-Voltage Switchgear
Low-Voltage Incoming Equipment
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.
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