LightTable Coordination/Arc Flash

Training Facility & Date Available SeatsCost
Online via GoToMeeting
December 11, 2023 to December 14, 2023

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


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