| 摘要 |
<p>The drive has a protection device (14) for protecting it against over current related to voltage variations on an electrical power supply network (A). The protection device has an electronic interrupter e.g. junction FET (T1), made of silicon carbide, and placed on a power bus between a rectifier module (12) and a direct current filter choke (L1). A diode (D1) is connected between a negative line (11) and a positive line (10) of the power bus, and is placed between the inductor and the interrupter. A control unit (140) controls the interrupter.</p> |
