| 摘要 |
<p>Invention applies to electrotechnics, particularly to electrical apparatus and represents a coil without magnetic circuit with small active and big inductive resistance included in each phase of electric circuit. In parallel and into the coil volume it is connected a dynamical quick-acting fuse (7) which forms with the coil a common structure. The problem of invention is to create a fuse with high disconnection capacity, high quick-action and big nominal currents (In=500-4000A), which allow to deshunt a coil of reactor (1) during short circuits with the saving of current limiting effect. The solution is obtained owing to the treating of fuse (7) and reactor (1) as one electric device with intercoherent electric, magnetic and thermic processes, with non-uniform densities of currents on coaxial fusible cells.</p> |
