Product Description：

The K13 factor three-phase isolation transformer is a three-phase dry-type isolation transformer specifically designed for high-harmonic nonlinear loads. Its core is rated at K=13, enabling it to withstand the additional heating caused by harmonic currents and ensuring stable operation under high-harmonic conditions. Suitable for medium to high harmonic scenarios (THDi ≤ approx. 60%), it accommodates 70%–90% nonlinear loads (e.g., data centers, UPS, variable frequency drives).

Core function: Does not eliminate harmonics, but through special design controls harmonic heating, prevents winding overheating, and extends service life.

Basic Parameters:

Rated capacity: 10kVA ~ 1000kVA
Input voltage: Three-phase 380V-690V (±10%)
Output voltage: Three-phase 380V-690V (±10%)
Frequency: 50/60Hz
Connection group: Dyn11
Cooling method: AN (natural air cooling) / AF (forced air cooling)
Insulation class: Class F (155°C), Class H (180°C)
Protection rating: IP00 / IP20 / IP54
Standards: IEC 60076-11, UL 5085, GB 6450