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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

Considerations when working with compound wound DC fields

  • December 2014
  • Number of views: 6870
  • Article rating:

Chuck Yung
EASA Senior Technical Support Specialist

Occasionally a customer wants a spare DC machine, and you find a replacement that is almost – but not quite – identical. Often, either the original or the spare is compound wound. The customer then asks: “What do the series fields do?” and “Can we just isolate the series leads?” 

There are a couple of considerations, but the answer is that “it depends.” If the nameplate is factory marked “Stabilized shunt” or “Stab shunt,” that tells us that the series contribution to total field flux is relatively small. In many applications (e.g., extruder), the relatively small series is not essential to successful operation of the motor.

Topics covered in the article include:

  • Shunt and series field
  • Flux contribution
  • Higher percent compounding
  • Inductive kick
  • Shunt field failure

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