Step Lap Lamination
Excellent cold rolled grain-oriented silicon steel is used for core. The silicon steel is cut by automatic machine with high accuracy and small burr. Low no-load loss and current are achieved by the technology of pin-stacking and stacking without upper yoke. The structure can reduce the noise effectively.
LV foil winding
The standard low-voltage winding twine by copper foil (or aluminum foil) with interleaved DMD which bear less dielectric stress. The assembled coils are then oven-cured to form uniformly bonded solid cylinders that are anti-moisture. Such winding has excellent dynamic stability under shortcircuit condition.
5.6MVA 33kV/0.8kV-0.8kV double split dry type rectifier transformer used in solar farm
7MVA 11kV/0.4-0.4kV dual voltage YNyn0yn0d inverter dry type transformer for renewable energy plants
Varelen fully meets ISO 9001, ISO 14001,and ISO 45001 certifications and standards. Our products meet GB, IEC, IEEE, NEMA, CSA, AS, GOST and other international and domestic electrical engineering standards including UL, CE, BV and EU.
Routine test
Type test
Special test
The dual-split dry-type transformer has two electrically independent secondary windings on a common core. Customers choose it to supply multiple loads from one transformer, improve system flexibility, and optimize rectifier or inverter performance without adding extra transformers.
Yes. Dual-split transformers are designed to tolerate load imbalance. Standard designs allow up to 10–15% unbalance, while industrial or rectifier-grade designs can handle 25–40% unbalanced operation with proper thermal margins.
Absolutely. Dual-split dry-type transformers are widely used in rectifier, VFD, UPS, and DC power supply systems. They can be designed with K-factor ratings, reinforced insulation, and harmonic-resistant windings.
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