The topic came up on another thread, so I'm posting a follow up here. (http://www.eng-tips.com/viewthread.cfm?qid=199403&page=1)
The basic question is: Should ground fault protection be taken into account when performing an arc flash study?
Most (MOST, not all) arcing faults will propagate to...
Here at our facility we have several large synchronous motors. The question of motor contribution to our arc flash hazard has recently come up, especially with a software upgrade to SKM Power Tools for Windows, version 6.0.2.1, which allows the user to specify synchronous motor contributions...