Arc Flash Studies: Why and When Are They Necessary
What is an Arc Flash? An arc flash is a sudden and intense release of energy resulting from an unintended arc fault, which occurs when there is a short circuit between live electrical components or between a live part and the ground. This release generates extreme heat and light, causing a powerful explosion that can […]
Arc Flash Hazard Analysis for HV Switchgear with Bus Zone Protection
Although rare, the bus zone fault can occur in several scenarios, such as circuit breakers or insulation support failure. Most HV switchboards have bus zone differential protection to avoid arc flash caused by these failures. Besides the bus itself, bus zone protections cover other components of the switchboards, such as circuit breakers, disconnecting switches, instrument […]