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首页> 外文会议>2015 IEEE Petroleum and Chemical Industry Committee Conference >API 541 variable speed medium voltage motors applied in a Class I, Div. 1 hazardous location ??? A case study
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API 541 variable speed medium voltage motors applied in a Class I, Div. 1 hazardous location ??? A case study

机译：API 541变速中压电机适用于I级，Div。 1个危险地点???案例研究

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摘要

When a petrochemical installation requires the use of Class I, Division 1 electric motors for hazardous areas, end users in North America must find motors certified to the applicable national standards for such equipment. In North America, NFPA 70 (National Electric Code or NEC) and Canadian Electric Code Electric motors with explosion-proof certification are not unusual for low voltage installations, but are uncommon when larger power, medium voltage applications are required. Medium voltage motors with Class I, Division 2 suitability are common, but are hard to find with an explosion-proof certification. Petrochemical applications for medium voltage motors also commonly require use of the American Petrochemical Institute Standard 541. Further, some applications additionally require use of an Adjustable Speed Drive to vary the speed of the driven equipment to fit operational considerations. In one recent instance, when an end user attempted to specify a 1500 kW motor with the combination of explosion-proof certification, adjustable speed suitability and API 541 features/testing, no manufacturer in the world had such a motor available. While other solutions were considered, the end user preferred the straight forward approach that a Class I, Division 1 motor offered and decided to work with a manufacturer of motors meeting International Electrotechnical Commission (IEC) flameproof standards to satisfy the combination of all application requirements for this installation. There are many differences between the NEC [5] and IEC systems governing hazardous areas and motor certifications are not interchangeable. The end user's engineers had to learn and understand the differences between these systems and this case study addresses many of the technical requirements, issues, and effort required to successfully deliver this motor to the project.
机译：当石化装置需要在危险区域使用I类1级电动机时，北美的最终用户必须找到经认证符合此类设备适用国家标准的电动机。在北美，具有防爆认证的NFPA 70（美国国家电气法规或NEC）和加拿大电气法规电动机在低压设备中并不罕见，但在需要大功率，中压应用的情况下并不常见。具有I级2级适用性的中压电机很常见，但是很难获得防爆认证。中压电动机的石油化学应用通常还需要使用美国石油化学协会标准541。此外，某些应用还需要使用可调速驱动器来改变被驱动设备的速度，以适应操作方面的考虑。在最近的一个实例中，当最终用户尝试通过防爆认证，可调速适用性和API 541功能/测试相结合来指定1500 kW电动机时，世界上没有制造商可以使用这种电动机。在考虑其他解决方案的同时，最终用户更喜欢I级1类电动机所提供的直接方法，并决定与符合国际电工委员会（IEC）防火标准的电动机制造商合作，以满足对以下方面的所有应用要求：此安装。 NEC [5]和IEC危险区域管理系统之间有很多区别，并且电机认证不可互换。最终用户的工程师必须学习和理解这些系统之间的差异，本案例研究解决了成功将电动机交付到项目中的许多技术要求，问题和工作量。

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