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Dry-Type Transformer
Widely used in commercial buildings, hospitals, schools, and industrial facilities where safety and low loss are essential.
11/12kv Oil-Immersed Transformer
Stable power for communities & factories. Compact, low-noise, maintenance-free
33/35kv Oil-Immersed transformer
Ideal for solar, wind & heavy industry. Ultra-low loss, built for tough loads.
110KV/158kv Oil-Immersed transformer
Custom-built for cross-regional grids. Reliable in extreme climates & high altitudes.
Photovoltaic Prefabricated Substation
Efficient and Stable Grid Connection Solution for Solar PV & New Energy Projects
Prefabricated substation
Compact, Sealed, Smart-Monitored, Remotely Operated, Reliable Power Anywhere
About Us
DTL (Diteli Electric), founded in 2008, is a China-based manufacturer with nearly 30 years of expertise in medium- and high-voltage power transformers. We integrate R&D, design, manufacturing, and sales, with an annual production capacity of 50 million kVA. Our portfolio includes dry-type, oil-immersed, and prefabricated substations, all engineered to IEC, ISO, CE, and CQC standards under strict quality control.
Key Products
- Oil-immersed transformers (11kV, 22kV, 33kV up to 220kV)
- Dry-type transformers (up to 66kV)
- PV energy storage transformers
- Combined substations
About Us
DTL (Diteli Electric), founded in 2008, is a China-based manufacturer with nearly 30 years of expertise in medium- and high-voltage power transformers. We integrate R&D, design, manufacturing, and sales, with an annual production capacity of 50 million kVA. Our portfolio includes dry-type, oil-immersed, and prefabricated substations, all engineered to IEC, ISO, CE, and CQC standards under strict quality control.
Key Products
- Oil-immersed transformers (11kV, 22kV, 33kV up to 220kV)
- Dry-type transformers (up to 66kV)
- PV energy storage transformers
- Combined substations
Fast Delivery
Fast Delivery
Delivering certified power solutions with safety, efficiency, and reliability.












































Request a Quote Now
- Diverse transformer types
- ISO, CE, CQC certified
- Customized industry solutions
- Pre-sales: 24h quick response
- Mid-sales: Fast delivery
- After-sales: Technical & after-sales support




















