【摘要】 基于电磁转矩的实用表达式,分析了异步电动机分别带恒转矩、恒功率和离心式通风机性质三类典型负载的Δ/Y降压运行,得出其转差率和转速降落的计算方法,为校核降压引起的电动机转速降低是否满足运行要求提供了理论依据。更多还原

【Abstract】 Based on the practical expression of the electromagnetic torque,we have analyzed the Δ / Y reducing voltage operation when asynchronous motor run with three typical load such as constant torque,constant power and centrifugal fan nature respectively. It can draw a conclusion about the calculation method of slip and speed landing. Which provide the theory basis for motor speed decreased whether it meet operation requirements caused by verifying reducing voltage.更多还原