在过去的15年里，水公用事业行业越来越依赖计算机、高科技设备和技术来帮助维护水处理厂、泵站和辅助设施。本文介绍了该设备和预测性维修的概念。它概述了一种方法，通过该方法可以检测和避免旋转机械（泵、涡轮机、混合器、HVAC、发电机）和电气设备（电机、变压器、承包商、继电器、电池）中即将发生的故障。预测性维护的概念将一个被动的程序转变为一个以主动模式运行的程序，该模式由已知物理参数的量化和分析决定。

For the past fifteen years the water utility industry has become more and more dependent on computers and high technology equipment and techniques to assist in the maintenance of water treatment plants, pump stations and ancillary facilities. This paper deals with this equipment and the concept of Predictive Maintenance. It outlines a methodology by which impending failures in rotating machinery (pumps, turbines, mixers, HVAC, generators) and electric equipment (motors, transformers, contractors, relays, batteries) can be detected and avoided. The concept of Predictive Maintenance changes a program that is reactive into one that operates in a pro-active mode which is dictated by the quantification and analysis of known physical parameters.