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Premature Failure of Large Horse Power Motors: Improper Field Connections, Installation, and Commissioning
IEEE Industry Applications Magazine ( IF 0.8 ) Pub Date : 2020-11-01 , DOI: 10.1109/mias.2020.2982727
James Nanney , Izhak Grinbaum , Mark Littlefield , Javier Portos

The commissioning phase is the final stage of a project before production. This phase is where all the pieces of the puzzle have to come together. The objective of commissioning is to demonstrate to the end user that the goals and objectives specified in the project scope have met the requirements. This article focuses on premature failures of large motors in the oil and gas industries due to improper field installation, connections, and commissioning. Large horsepower (HP) motors are a key part of most projects and require great attention to detail. Motors require relay protection, writing specifications, vetting suppliers, and testing protocols. The goal is to get the desired life expectancy with trouble-free service from the motor and the driven equipment. It is clear that good installation is a key to success. Incorrect installation of field connections and modifications can shorten the life of the motor and instrumentation and in some cases lead to premature failures. This applies to a new installation as well as retrofits with an adjustable-speed drive (ASD). This article discusses multiple premature motor failures resulting from improper installations and offers possible protocols that might have prevented equipment failure and downtime.

中文翻译:

大马力电机过早故障:现场连接、安装和调试不当

调试阶段是项目生产前的最后阶段。这个阶段是拼图的所有部分必须拼凑在一起的地方。调试的目的是向最终用户证明项目范围中规定的目标和目标已经满足要求。本文重点介绍石油和天然气行业中由于现场安装、连接和调试不当而导致的大型电机过早故障。大马力 (HP) 电机是大多数项目的关键部分,需要非常注意细节。电机需要继电保护、编写规范、审查供应商和测试协议。目标是通过电机和驱动设备的无故障服务获得所需的预期寿命。很明显,良好的安装是成功的关键。现场连接的错误安装和修改会缩短电机和仪表的寿命,在某些情况下会导致过早故障。这适用于新安装以及带有可调速驱动器 (ASD) 的改造。本文讨论了因安装不当而导致的多个电机过早故障,并提供了可能防止设备故障和停机的可能协议。
更新日期:2020-11-01
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