Arc flash study is a type of analysis that is used to determine the potential hazards associated with an electrical system, including the risk of an arc flash event. These studies typically involve evaluating the system’s design, construction and operating conditions in order to identify areas where arc flash hazards may be present.

In the context of a battery energy storage system, an arc flash study would focus on the potential hazards associated with the electrical components of the system, such as the battery cells and the associated charging and inverter equipment. The study would consider factors such as the system’s operating voltage, the type and size of battery cells and the layout of electrical components of the system.

The study would also include the calculation of the incident energy, which is the amount of energy that could be released in an arc flash event and the arc flash boundary which is the distance from the electrical equipment at which a person could be exposed to the incident energy.

Based on the results of the study, recommendations would be made to reduce the risk of an arc flash event such as installing protective or modifying the system or protection design.
It is important to note that this is a general overview of what an arc flash study is and how it might apply to battery energy storage systems. Each study will be unique, depending on the specific system being evaluated.