VARIABLE FREQUENCY DRIVES (VFD) in REXBURG 0.6 DW OR WW CEUs

This training will be at the Rexburg Fire Station.

Join Craig Hartman and Chet Crawford from Energy Management Corporation.

Course Outline:

  1. Introduction to Motors
  • Induction Motor Theory
  • Slip Frequency
  • Motor Flux and Torque Characteristics
  • V/Hz Control
  • Torque-Speed and Current-Speed Curves
  1. VFD (Motor Controls) Theory and Design
  • Block functional diagrams
  • Converter theory
  • DC bus characteristics
  • Inverter theory
  • Harmonics, including single-phase input
  • V/Hz, Torque, and Speed control
  1. NEC Motor and Motor Control Grounding
  2. NEC Motor Control Code 
  • Introduction
  • Short circuit protection
  • Lock out concerns
  • Differences in overcurrent protection when used on variable frequency drives.¬† Service factor?
  1. VFD Wiring
  • Power and Control Wiring
  • NEC Code
  1. Harmonics
  • Introduction to Harmonics
  • Deleterious Effects of Harmonics on Power Systems
  • Exhaustive Analysis of all Harmonic Mitigation Options
  • Compliance with IEEE 519 and local codes
  1. VFD Troubleshooting (Hardware)
  • Normal start-up and commissioning
  • VFD Maintenance
  • VFD Troubleshooting
  • Safety compliance OSHA & NFPA 70 E.
  • Arc flash protection with OSHA NFPA 70 E
  1. VFD Programming [hands-on training with motor control training demos]
  • Review of parameter list
  • Operation of programming unit
  • Typical programming errors

Trouble-shooting programming faults

Event Details

21 Feb 2018
Time: 8:30 AM - 4:00 PM
Members: $120
Non-Members: $195
24 North Center Street, Rexburg, ID, United States

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