Расчет тяговых характеристик тепловозов с электрической передачей и электровозов, страница 5

 В

где  Ом - активное сопротивление цепи тягового электродвигателя

 Ом – сопротивление обмотки дополнительных полюсов

 В – падение напряжения на коллекторно-щеточном узле

Частота вращения вала тягового электродвигателя

 с-1                                                                                                                                                                                                                                                                                    

<  1 ступень ослабления поля.

Фактическая намагничивающая сила главных полюсов

 А                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

Потери мощности тепловоза

Вт

Мощность тепловоза

Вт

Крутящий момент на валу тягового электродвигателя

 Н·м

Скорость движения тепловоза

 м/c

Сила тяги тепловоза

 кН

КПД тепловоза