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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

Surge testing of DC motor and generator armatures

  • July 2007
  • Number of views: 9290
  • Article rating:

Cyndi Nyberg 
Former EASA Technical Support Specialist 

In the April 2007 issue of CURRENTS, we covered surge testing anomalies, speci.cally for AC windings. The surge test can be used for DC windings as well. It can be a useful tool for evaluating armatures and some DC fields. 

A note of caution:  If a winding does not have a minimum insulation resis­tance per ANSI/EASA AR100-2006, it is not safe to apply an overpotential test (surge or high potential). 
Surge testing shunt .elds may not provide meaningful results if the surge pulse decays too quickly — if it dissipates through only the .rst few hundred turns. To obtain a test voltage high enough to test every turn would require too high a voltage. That high voltage would overstress the ground-wall insulation. 

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