Power Transformer
Oil Immersed Power Transformer
High-capacity transformer for substations, factories, utilities, mining, and renewable energy step-up projects.
- Rated Capacity
- 30 kVA to 31500 kVA
- Voltage Class
- 6 kV to 35 kV
CJSEM transformer manufacturing
Power transformers built for global industrial projects
Oil immersed, dry type, pad mounted, compact substation, and new energy power equipment for substations, factories, utilities, and renewable sites.
Founded 2011IEC / ANSI configurableExport project support
2011Company founded
6Core product lines
35kVCommon voltage class coverage
24hInquiry response target
Quick Answer
For overseas buyers, a convincing transformer website must show real product categories, clear technical parameters, quality control, export cases, and a direct quotation path.
Product center
Transformer categories for substations and power distribution
Each product card shows its industrial use case and key technical range before the buyer enters the detail page.
Indoor Transformer
Dry Type Transformer
Low-maintenance transformer for commercial buildings, hospitals, data rooms, railway, and indoor distribution systems.
- Rated Capacity
- 30 kVA to 5000 kVA
- Voltage Class
- 6.6 kV to 35 kV
Distribution Transformer
Pad Mounted Transformer
Compact sealed transformer cabinet for residential communities, solar plants, wind farms, and urban distribution networks.
- Rated Capacity
- 15 kVA to 2500 kVA project configurations
- Phase
- Single-phase or three-phase options
Box-Type Substation
Compact Transformer Substation
Integrated substation solution for municipal grids, industrial parks, construction sites, and utility distribution.
- System Composition
- Transformer, HV switchgear, LV cabinet, enclosure
- Voltage Class
- Commonly configured around 10 kV to 35 kV systems
Renewable Energy Transformer
New Energy Box-Type Substation
Prefabricated transformer substation for solar, wind, and distributed renewable energy power collection systems.
- Project Use
- Renewable energy collection and step-up
- Equipment Set
- Transformer, switchgear, protection, monitoring options
New Energy Equipment
Energy Storage System
Power equipment solution for energy storage projects, microgrids, renewable smoothing, and backup power applications.
- System Role
- Energy storage, backup, peak shaving, renewable smoothing
- Integration
- Transformer, PCS, battery cabinet, control and protection options
Why choose us
Evidence buyers can check before sending an inquiry
Manufacturing focus
Transformer, substation, and new energy equipment categories are organized for technical comparison.
Specification clarity
Capacity, voltage class, installation environment, and documents are surfaced on every product page.
Export project path
Cases, FAQ, and quotation CTAs help overseas buyers move from evaluation to technical inquiry.
Solutions
Project scenarios connected to recommended equipment
Solution pages connect factory power, renewable energy, and distribution needs to matching transformer products.
Industrial Power Distribution
Transformer selection for factories, process lines, and high-load industrial parks.
View solutionRenewable Energy Step-up
Transformer planning for solar farms, wind farms, and distributed energy systems.
View solutionMining and Crushing Plant Power
Heavy-duty transformer configuration for crushers, conveyors, pumps, workshops, and remote mining sites.
View solutionMunicipal Utility Substation
Distribution transformer planning for city networks, utility upgrades, residential districts, and public infrastructure.
View solutionCommercial Building Distribution
Indoor transformer selection for office towers, hospitals, shopping centers, hotels, and data rooms.
View solutionEnergy Storage Microgrid
Power equipment configuration for battery energy storage, microgrids, renewable smoothing, and backup power.
View solutionProject cases
Export-style proof points for global buyers
Cases are linked to product categories so visitors can understand where each transformer type fits.
Kyrgyzstan
Dry Type Transformer Export to Kyrgyzstan
A dry type transformer export case used as a buyer proof point for indoor distribution and overseas documentation workflows.
View Case
Mauritania
Oil Immersed Transformer Export to Mauritania
An oil immersed transformer case for outdoor distribution projects that need reliable cooling, insulation, and factory test documentation.
View Case
Southeast Asia
Factory Substation Upgrade
A manufacturing plant scenario using oil immersed transformers to upgrade high-load industrial distribution capacity.
View CaseFAQ
Buyer questions answered before quotation
What information should I send before requesting a transformer quote?
Send capacity, primary and secondary voltage, frequency, phase, vector group, installation environment, standards, accessories, quantity, and destination country.
How do I choose between oil immersed and dry type transformers?
Oil immersed transformers are usually selected for outdoor, high-capacity, and continuous-load projects. Dry type transformers are preferred indoors where oil-free operation, fire safety, and low maintenance are important.
Can CJSEM support customized voltage, enclosure, or accessories?
Yes. Voltage ratio, capacity, vector group, impedance, enclosure, protection accessories, monitoring, metering, and documentation can be configured around project requirements.
What drawings and documents can be provided before production?
The project team can prepare technical datasheets, outline drawings, single-line diagram references, nameplate confirmation, routine test plans, and packing information.
How should overseas buyers plan delivery and installation?
Confirm destination port, lifting conditions, site foundation, cable direction, unloading plan, spare parts, and whether the project needs installation guidance or remote commissioning support.
What after-sales support is available after shipment?
After-sales support can include installation notes, commissioning guidance, spare parts coordination, routine maintenance suggestions, and technical response for operation issues.
Inquiry CTA
Send your transformer parameters for a fast quotation
Share capacity, voltage ratio, installation environment, standards, and destination country. We will map the right product page and technical documents.