Calculating Arc Flash Hazards / Currents
- Click
Arc Flash if it is not already selected. - Click
Fault Bus(es). The program displays the arc flash boundaries (AFB) and incident energies.
Figure 1: Arc Flash Results on the One-line
Fault Interface
When EasyPower analyzes arc flash hazards, the program determines the theoretical arcing current for each faulted bus. This information is then used to calculate the hazard for each faulted bus.
In EasyPower, different methods are available to fault buses while in the Short Circuit focus:
- Click Fault Bus(es) without selecting any bus. This runs a batch fault on all the buses in your system. This provides arc flash hazard results for all buses.
- Double-click on a single bus to fault a bus.
- Select a bus or multiple buses (so they turn green) and click Fault Bus(es). To select a single bus, click with the left mouse button. To select extra buses, click on each bus while pressing SHIFT.
