LightTable Coordination/Arc Flash

Class Overview

The four-day ONLINE class will run from 10 a.m. - 2:30 p.m. CST each day. Lunch break will be from 12 p.m. - 12:30 p.m. CST.  The GoToMeeting links will be sent a week before the training event.

Arc Flash

• Major changes between 2002 and 2018
   
• How the equations were developed and how they are applied
   
• How to determine input values and their effects on final energies
  • Electrode geometry
  • Box sizes 
  • Gap spacing
  • Working distance
     
• Should the IEEE-1584 or the NESC be used for these situations?
  • Enclosures
  • 1ph, 2ph, 3ph arcs
  • Open-air arcs with small gaps
  • Open-air arcs with large gaps
     
• Model Example Systems to calculate
  • Incident energy variances based on Enclosure type
  • Worst case energy for different enclosure types
  • Arc flash boundary working distance
  • Determine new system protection schemes to minimize incident energy levels
     
• Use the arc flash calculator for determining situation-specific energies while applying input modifications

LightTable

Working with LightTable

• LightTable Toolbars
• Property Editor
• Zooming and Panning

Display Options

• Changing the Graph View
• Changing  the Curve Display

Changing Curve Properties

• Setting Label Formats
• Shifting Curves

Using Devices and Transformers

• Creating Devices and Reviewing Properties
• Creating Transformers and Reviewing Properties

One-Line Diagram

• Changing Sequence of Devices
• Fault and Base Voltage Location
• Transformer Windings, Fault Types, and Shifting

Coordination Refresher

• Fuse-Fuse, Fuse-Recloser, Recloser-Recloser coordination

Coordination with WindMil

• Using Coordination Analysis
• LightTable - WindMil interface
• Classroom Exercises