Facebook Twitter LinkedIn YouTube Menu Search Arrow Right Arrow Left Arrow Down Arrow Up Home Arrow Next Arrow Previous RSS Icon Calendar Icon Warning Icon

Filter the results

  • Enter one or more words to find resources containing any of the words entered
  • Enter words or phrases between " " to find exact match

Resource Library

Article

Test run tips: Common causes for high no-load current on rewound motors

  • June 2002
  • Number of views: 3435
  • Article rating: No rating

Cyndi Nyberg
EASA Technical Support Specialist 

When a motor is test run without a load after it has been rewound, one of the questions we are asked is why the amps are too high, even higher than the nameplate full load. Here are a few of the common factors to consider. 

First, if there is a problem with the data, it is im­portant to realize that not every service center has access to EASA’s extensive database and technical knowledge. Of course, some motor failures are so catastrophic that it is impossible to determine the connection or even the turns per coil for a particu­lar winding. Without access to the EASA database, if factory data cannot be obtained, the service cen­ter is left to make assumptions. If this is the case, you may have inherited someone else’s problem if they misinterpreted the data. 

LOGIN TO VIEW AND DOWNLOAD THE ARTICLE



Categories: Testing, Motor testing
Rate this article:
No rating
Print


PREVIOUS ITEM
Comments are only visible to subscribers.

Getting The Most From Your Electric Motors

Getting The Most From Your Electric Motors - coverThis 40-page booklet provides great advice for obtaining the longest, most efficient and cost-effective operation from general and definite purpose electric motors.

This booklet covers topics such as:

  • Installation, startup and baseline information
  • Operational monitoring and maintenance
  • Motor and baseline installation data
  • How to read a motor nameplate
  • Motor storage recommendations

LEARN MORE AND DOWNLOAD MÁS INFORMACIÓN Y DESCARGAR BUY PRINTED COPIES

READ MORE ABOUT THE FEATURES AND BENEFITS

EASA/AEMT Rewind Study

EASA Rewind Study cover

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

DOWNLOAD THE FULL RESULTS

ANSI/EASA AR100-2020

ANSI/EASA AR100-2015 cover

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.

DOWNLOAD - ENGLISH

DESCARGAR - ESPAÑOL

EASA Technical Manual

EASA Technical Manual cover

Revised May 2024
The EASA Technical Manual is the association's definitive and most complete publication. It's available FREE to members in an online format. Members can also download PDFs of the entire manual or individual sections.

VIEW & DOWNLOAD