Resin insulated dry-type transformer

Product standards: GB/T10228-1997, GB6450-1996, IEC726 Rated voltage: High voltage: 35, 20, 10 (10.5, 6.3, 6) kV; 0.4kV insulation level: L175AC35/AC3 LI170AC70/AC3

1. Voltage level: 6kV, 10kV, 20kV, 35kV2, voltage regulation method: no excitation voltage regulation or on load voltage regulation

3. Tap range: ± 5%, ± 2 × 2.5% or ± 4 × 2.5% (or as required by the user) 4. Capacity range: 30-20000kVA

5. Frequency: 50Hz, 60Hz

6. Number of phases: three-phase, single-phase

7. Connection group number: Yyn0 or Dyn11 (or according to user requirements)

8. Short circuit impedance: The standard short circuit impedance can be found in the technical parameter table (or according to user requirements)

9. Usage environment: Relative humidity not exceeding 100%, ambient temperature not exceeding 40 ℃ (or as required by the user) 10. Cooling method: AN or AF

11. Protection level: IP0O, IP20, IP2312, insulation and heat resistance level: F level

13. Insulation level:

1) 10kV level products have a power frequency withstand voltage of 35kV and an impulse withstand voltage of 75kV

2) 35kV level products have a power frequency withstand voltage of 70kV and an impulse withstand voltage of 170kV