Product Parameters

Product Definition‌

Dry-type transformers are transformers in which the core and windings are not immersed in insulating liquid. Cooling is achieved through natural air convection. Structurally, they can be classified into two types: windings encapsulated with solid insulation and non-encapsulated windings.

‌Technical Parameters‌

‌Operating Frequency:‌ Typically 50/60 Hz

‌Dielectric Strength:‌ Usually requires no breakdown at 20,000 V/min

‌Insulation Class:‌ Commonly Class F; special classes available upon customization

‌Insulation Resistance:‌ ≥ 2 MΩ

‌Connection Configuration:‌ Optional configurations include Y/Y, Δ/Y0, Yo/Δ, and autotransformer type

‌Permissible Winding Temperature Rise:‌ Typically 100 K

‌Cooling Method:‌ Natural air cooling or temperature-controlled automatic cooling

‌Noise Level:‌ ≤ 30 dB