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How to schedule

To schedule private education for your group, contact:

Dale Shuter, CMP
Meetings & Expositions Manager

+1 314 993 2220, ext. 3335
dshuter@easa.com

1 hour of training

$300 for EASA Chapters/Regions
$400 for member companies
$800 for non-members

How a webinar works

All EASA private webinars are live events in which the audio and video are streamed to your computer over the Internet. Prior to the program, you will receive a web link to join the meeting. 

The presentation portion of the webinar will last about 45 minutes, followed by about 15 minutes of questions and answers.

Requirements

  • Internet connection
  • Computer with audio input (microphone) and audio output (speakers) appropriate for your size group
  • TV or projector/screen

Zoom logo

The Zoom webinar service EASA uses will ask to install a small plugin. Your computer must be configured to allow this in order to have full functionality. Please check with your IT department or company's security policy prior to scheduling a private webinar.

Private Webinars

EASA's private webinars are an inexpensive way to bring an EASA engineer into your service center, place of business or group meeting without incurring travel expenses or lost production time.

Article

Commutator tips to extend DC motor life

  • April 2002
  • Number of views: 11935
  • Article rating:

Chuck Yung
EASA Senior Technical Support Specialist

One of the least understood parts of a DC motor is the commutator. With a little understanding and some helpful tips, commutator life can be maximized.

Commutators are made of copper bars* separated by insulation from each other and from the steel hub. Viewed from the end, each bar is wedge-shaped, tapered radially with the thickest portion towards the outside. The insulation material most often used is segment mica because it remains stable at the temperature and pressure required during assembly and operation. By alternating copper bars with mica segments, each bar is isolated electrically from the other bars. The resulting cylinder of bars and mica is mounted on an insulated steel hub.

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