Three-phase sine filter choke integrated 2 in 1 the L_Principal and L_Secondary
Three-phase sine filter choke integrated 2 in 1 the L_Principal and L_Secondary
Description
Primary and secondary choke integrated in a single device for LCL filter converter output. They attenuate PWM switching harmonics by restoring the sine wave and at the same time eliminate the problems associated with high dV/dt.
Electrical features
| Nominal voltage | |
| Nominal current | LV 400 ÷ 1100 V / MV: 3.6 ÷ 17.5 kV |
| Inductance | 100 ÷ 5000 Arms |
| Inductance tolerance | 1 ÷ 900μH / 1 ÷ 900mH |
| Linearity inductance | ±5% / ±10% depending on the application |
| Nominal frequency | 1.5 ÷ 5 x In without saturation |
| Switching frequency | DC / AC 25 ÷ 400Hz |
| Current harmonics | 2 ÷ 10kHz Magnetic steel / >10 ÷ 50kHz Ferrite core |
Quality seals
