Air-core inductance
Air-core inductance
Description
Choke or filter inductance in alternating current without magnetic saturation. It admits high short-circuit current while minimising radial electrodynamic stresses and maintaining its nominal inductance value L(mH).
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 |