Выбор аппаратуры управления, защиты, регулирования, контроля параметров и перемещения для надёжной безаварийной работы электропривода, страница 5

          Шины энергоснабжения                                                                                                                                                       А                                                                                                                                                                                                В                                                                                                                                                                                             С                                                                                                                                                                                             N                                                                                                                                                                                                                            QF1                                           SB2                                                                                                                                       I>                     SB1                                                                                                   KM1                                                                                                                    KA1       KA2                                                                                                                                                                                                                                                                                KA1             KA2                                                                                                                                                                                                                                           KM1.1                                                                                                                                                                                                                                        KT1.1                                                                                                                                                                                                                                                                              KM1                                                                                                                                                                                                                                                                                                                                                                                                                                                               KM1.2                                                       KT1                                                                                                                                                                                                                                                                                                                               

                                                   Наличие обозначения I> рядом с графическим изображением автоматического                                         М1        воздушного выключателя (QF) означает наличие у него максимально-токового

расцепителя. Другие виды расцепителей обозначаются следующим образом:

I< - минимально-токовый расцепитель; U< - расцепитель минимального напряжения; U> - расцепитель максимального напряжения; Т⁰ – тепловой расцепитель

                    Рисунок 3.3 – Схема включения максимально-токовых реле при реализации тепловой защиты
                                              электропривода, работающего в повторно-кратковременном режиме (S3)