电厂循泵电机双速改造的应用

Application of Circulating Water Pump Motor Double Speed Transformation

高压电机的变频改造和高低速改造是电机节能改造的两个主要方式,高低速改造方式因其较少的投资成本和后期维护在某些特定电机改造中得到了广泛应用。主要介绍了新昌电厂A循泵电机双速改造原理、实现方式和节能效果,对改造后保护二次线的接线的两种接线方式等进行了探讨和说明。

Frequency-conversion and double speed transformation are two main ways to the motor energysaving renovation. Double speed transformation applied widely in some specific motors thanks to its low investment and less maintenance. This article mainly describes the principle and the effect of energy saving of the double speed transformation for the circulating water pump motor A in Xinchang power plant. And it also discussed the two ways of wirings of the relay protection.