SOFTSTARTER FOR GROUP OF ASYNCHRONOUS MOTORS

摘要

A softstarter for a group of asynchronous motor comprises a rectifier and a group of controlled invertors, transistor sub-sets, an input switching device, controlled invertors, sectional switching devises, an energy storage, two transistor sub-sets, a voltage sensor, a microprocessor, a control panel, an inverter control unit, a switching devises control unit and a display panel.