This is an old question for 380V, 3-phase cage motors that seems to have an answer decades ago, but is almost new, and most of the answers now don’t stand up to asking why? Or in practice there is no operability. Summarize the existing answers first: (please add if I didn’t say everything) 1. The motor power is greater than 10kW; 2. The motor power is greater than 50kW; 3. The motor power is greater than 20% of the transformer capacity; 4. Motors that are frequently started, start The voltage drop caused by it is greater than 10%; 5. The voltage drop caused by the occasional start of the motor is greater than 15%. And good… View the full text: https://www.liangwazi.com/post/djddcxyj.html
This article is reprinted from: https://www.liangwazi.com/post/djddcxyj.html
This site is for inclusion only, and the copyright belongs to the original author.