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Auxiliary cooling of electric motors (and other equipment)

  • 2017年1月
  • 浏览次数:6680
  • 文章评级:无评级
Article

Although the earliest practical DC motor was built by Moritz Jacobi in 1834, it was over the next 40 years that men like Thomas Davenport, Emil Stohrer and George Westinghouse brought DC machines into industrial use.  It’s inspiring to realize that work-ing DC motors have been around for over 160 years. 在过去的一个世纪, DC machines over 30 or 40 kW have been cooled in the same manner – by mounting a squirrel cage blower directly over the commutator.

Refrigeración auxiliar de motores eléctricos (y otros equipos)

  • 2017年1月
  • 视图数:6332
  • 文章评级:无评级
Article

关于冷却电机的酷事实

Improvements in applications that fall outside the normal operating conditions

  • 2015年11月
  • 浏览次数:8124
  • 文章评级:无评级
贸易新闻文章 - IEEE工业应用

The evolution of electric motor design as it pertains to cooling methods provides insights about better ways to cool machines in service. The array of methods engineers have devised to solve the same problems are fascinating yet reassuring because many things remain unchanged even after a century of progress. This article discusses how motors are cooled and how heat dissipation can be improved for applications that fall outside the normal operating conditions defined by the National Electrical Manufacturers Association (NEMA) Standard MG 1.

关于热马达的好建议

  • August 2015
  • 浏览次数:8118
  • 文章评级:无评级
贸易新闻文章 ——维护技术

The effects of excessive temperature on motor performance are notorious. After moisture, they are the greatest contributor to bearing and winding failures. Understanding the source of increased temperature is key to correcting the problem and improving the reliability of your facility’s motor fleet.

如何平衡悬空风扇

  • 2011年10月
  • 浏览次数:6475
  • 文章评分:3.0
会议记录

This presentation shows a methodical approach and techniques for tackling this difficult balancing problem.

关于冷却电机的酷事实

Whether old or new design, lowering temperatures based on same principles

  • July 2011
  • 浏览次数:4985
  • 文章评级:无评级
Article

Whether an old or new design, lowering temperatures is based on the same principles. I've often commented on how fortunate we are to work on such a variety of electric motor designs. One day, you are working on a new design some designer has recently created, and the next day you are repairing a motor that could be in a museum. It's fascinating to see the different ways engineers have devised to do the same thing, and yet reassuring to see how many things remain unchanged even after a century of electric motors. One aspect of electric motors that could be placed in both categories is the way an electric motor is cooled. This article takes a look at how motors are cooled and how we can improve cooling for some of the special applications we encounter.

了解范律可以帮助表演

  • 2002年10月
  • 浏览次数:7147
  • 文章评级:无评级
Article

Most of us involved in the repair of electrical equipment have a good understanding of how an electric motor works — especially the stator and rotor. 但风扇可以看似简单. 粉丝很有趣, once we learn a few "affinity laws" — rules that also apply to blowers and impellers. This article will review some basic facts about fans that explain how small changes to a fan can make a BIG difference.

充分利用你的电动马达

从你的电动马达-盖This 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

这本小册子涵盖的主题包括:

  • 安装、启动和基准信息
  • 运作监察及维修
  • 电机和基准安装数据
  • 如何读取电机铭牌
  • 电动机储存建议

了解更多并下载 MÁs informaciÓn y descargar 购买打印副本

阅读更多关于特性和好处的信息

冰球突破app/ AEMT倒带的研究

EASA倒带研究封面

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

下载完整结果

ANSI / EASA ar100 - 2020

ANSI / EASA ar100 - 2015

Recommended Practice for the Repair of Rotating Electrical Apparatus
This is a must-have guide to the repair of rotating electrical machines. Its purpose is to establish recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

下载——英语

DESCARGAR——西班牙语

冰球突破app技术手册

EASA技术手册封面

修订后的2021年5月
The 冰球突破app技术手册 is the association's definitive and most complete publication. 它是可用的 FREE 以在线形式发给会员. Members can also download PDFs of the entire manual or individual sections.

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