January 2011 The Application of Electromechanical Spring-Set Brakes in MRL
SPECIAL NOTICE: Please check each course for verification of approval before purchasing. This test is based on the article, The Application of Electromechanical Spring-Set Brakes in MRL Machines published in the January 2011 issue and counts as one contact hour (0.1 CEU) of elevator-industry continuing-education credit. Most courses are approved by NAEC for CET/CAT and NAESAI for QEI and in the following states: Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Kentucky, Maryland, Mississippi, Missouri, Montana, Oklahoma, Pennsylvania, Vermont, Virginia, Washington, West Virginia, Wisconsin. Learning Objectives - After reading this article, you should have learned about:
- The basic components and operation of a DC electromagnetic spring-applied brake
- The options commonly configured to spring-applied brakes for elevator applications
- Switching methods used to improve the response time of DC brakes
- Brake designs used to dampen noise during operation
- Redundant brake designs and their application as a safety brake
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