Isbn: 9787040555417 - 电机与电气控制技术及技能(第2版中等职业教育课程改革教材) (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2021-03-01 Pages: 233 Language: Chinese Publisher: Higher Education Press This book is a curriculum reform textbook for secondary vocational education. It mainly introduces AC asynchronous motors: The basics introduces the structure and principles of asynchronous motors. and the start-up chapter . Reversal chapter. Speed ??regulation chapter. Braking chapter and expansion chapter. respectively introduce the principle analysis of three-phase asynchronous motor starting. re.…