February 2010 Modern VVVF Drives

Author:
Format: CEU (CONTINUING EDUCATION)
Publication Date: 2010
Article Link: Read Article

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Description

SPECIAL NOTICE: Please check each course for verification of approval before purchasing.

This test is based on the article, Modern VVVF Drives, published in the February 2010 issue and counts as two contact hour (0.2 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, Colorado, Florida, Georgia, Illinois, Indiana, Kentucky, Maryland, Mississippi, Missouri, Oklahoma, Pennsylvania, Vermont, Virginia, Washington, West Virginia, Wisconsin.

Learning Objectives - After reading this article, you should have learned:


  • Types of VVVF drives
  • The comparison of a VVVF inverter to a vector drive
  • Power consumption of AC-VVVF drives
  • The sizing of a drive
  • Advantages of a DC drive unit

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  5. If you scored 80% or above you can immediately print your certificate of completion. If you fail the exam, you will be given instructions on how to pay a re-take fee and take the exam again.

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