What characterizes a momentary interruption in electrical systems?

A momentary interruption in electrical systems is characterized by a transient fault lasting between 33 to 133 milliseconds. This definition encapsulates a brief disruption of power that can occur due to various reasons such as lightning strikes, switching operations, or other disturbances in the electrical network. During this brief period, the system experiences a temporary loss of power, but it is not long enough to be classified as a sustained outage.

This answer effectively captures the essence of what a momentary interruption is, distinguishing it from other types of power disturbances that are longer in duration or planned in nature. For example, sustained power outages are typically much longer and are intended to describe situations where power is not available for hours. Continuous interruptions during peak usage or scheduled maintenance interruptions are systematic and generally anticipated, lacking the unpredictable nature of momentary interruptions. Thus, the definition focusing on the specific time frame of transient faults aligns accurately with how these interruptions are understood in electrical systems.